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Wiring Diagram AUDI Q3 2012 - Fuse holder C
| SA5 | Fuse 5 in fuse holder A |
| SC | Fuse holder C |
| SC22 | Fuse 22 on fuse holder C |
| SC23 | Fuse 23 on fuse holder C |
| SC46 | Fuse 46 on fuse holder C |
| SC47 | Fuse 47 on fuse holder C |
| SC48 | Fuse 48 on fuse holder C |
| B272 | Positive connection (30), in main wiring harness |
| B298 | Positive connection 2 (30), in main wiring harness |
| B316 | Positive connection 2 (30a) in main wiring harness |
| B317 | Positive connection 3 (30a) in main wiring harness |
| B318 | Positive connection 4 (30a) in main wiring harness |
| * | see applicable current flow diagram for battery in engine compartment |
Wiring Diagram AUDI Q3 2012 - Fuse holder C
| J519 | Onboard supply control unit |
| SC3 | Fuse 3 on fuse holder C |
| SB26 | Fuse 26 on fuse holder B |
| SC | Fuse holder C |
| SC34 | Fuse 34 on fuse holder C |
| SC35 | Fuse 35 on fuse holder C |
| T40 | 40-pin connector |
| T52b | 52-pin connector |
| B301 | Positive connection 5 (30), in main wiring harness |
| B319 | Positive connection 5 (30a) in main wiring harness |
| B320 | Positive connection 6 (30a) in main wiring harness |
| B466 | Connection 2, in main wiring harness |
Wiring Diagram AUDI Q3 2012 - Storage compartment illumination bulb - Left drinks holder illumination bulb - Right drinks holder illumination bulb - Rear vent illumination bulb
| J519 | Onboard supply control unit |
| L120 | Storage compartment illumination bulb |
| L129 | Left drinks holder illumination bulb |
| L130 | Right drinks holder illumination bulb |
| L216 | Rear vent illumination bulb |
| T52b | 52-pin connector |
| 380 | Earth connection 15, in main wiring harness |
| B731 | Connection 1 (58s), in main wiring harness |
| B732 | Connection 2 (58s), in main wiring harness |
| * | Only models with radio chorus |
| *2 | Only models with radio concert |
| *3 | Only models with MMI |
Wiring Diagram AUDI Q3 2012 - Driver vanity mirror contact switch - Front passenger vanity mirror contact switch - Interior monitoring sensor - Dash panel left vent illumination bulb - Dash panel central vent illumination - Dash panel right vent illumination bulb - Front passenger side illuminated vanity mirror - Driver side illuminated vanity mirror
| F147 | Driver vanity mirror contact switch |
| F148 | Front passenger vanity mirror contact switch |
| G273 | Interior monitoring sensor |
| J519 | Onboard supply control unit |
| L67 | Dash panel left vent illumination bulb |
| L68 | Dash panel central vent illumination |
| L69 | Dash panel right vent illumination bulb |
| W14 | Front passenger side illuminated vanity mirror |
| W20 | Driver side illuminated vanity mirror |
| 370 | Earth connection 5, in main wiring harness |
| 378 | Earth connection 13, in main wiring harness |
| 380 | Earth connection 15, in main wiring harness |
| B732 | Connection 2 (58s), in main wiring harness |
| * | Only models with illuminated vanity mirror |
| *2 | For models with anti-theft alarm system |
Wiring Diagram AUDI Q3 2012 - Front roof module - Rear interior light
| J519 | Onboard supply control unit |
| T6d | 6-pin connector |
| T8ad | 8-pin connector |
| T52c | 52-pin connector |
| W1 | Front interior light |
| WX3 | Front roof module |
| W11 | Rear left reading light |
| W12 | Rear right reading light |
| W13 | Front passenger reading light |
| W19 | Driver side reading light |
| W43 | Rear interior light |
| Y7 | Automatic anti-dazzle interior mirror |
| 378 | Earth connection 13, in main wiring harness |
| B732 | Connection 2 (58s), in main wiring harness |
Wiring Diagram AUDI Q3 2012 - Left footwell light - Right footwell light - Rear left footwell light - Rear right footwell light
| J519 | Onboard supply control unit |
| T10d | 10-pin connector, in coupling point for front seat, left |
| T10e | 10-pin connector, in coupling point for front seat, right |
| T52b | 52-pin connector |
| W9 | Left footwell light |
| W10 | Right footwell light |
| W45 | Rear left footwell light |
| W46 | Rear right footwell light |
| 369 | Earth connection 4, in main wiring harness |
| 372 | Earth connection 7, in main wiring harness |
| 374 | Earth connection 9, in main wiring harness |
| 377 | Earth connection 12, in main wiring harness |
| 378 | Earth connection 13, in main wiring harness |
| B472 | Connection 8, in main wiring harness |
| * | Only models with radio concert |
| *2 | Only models with MMI |
Wiring Diagram AUDI Q3 2012 - Glass breakage sensor for rear window - Alarm horn - Luggage compartment light on left - Right luggage compartment light
| G304 | Glass breakage sensor for rear window |
| H12 | Alarm horn |
| J519 | Onboard supply control unit |
| T17 | 17-pin connector, Coupling point for rear lid |
| T52a | 52-pin connector |
| T52b | 52-pin connector |
| W18 | Luggage compartment light on left |
| W35 | Right luggage compartment light |
| 85 | Earth connection 1, in engine compartment wiring harness |
| 382 | Earth connection 17, in main wiring harness |
| 383 | Earth connection 18, in main wiring harness |
| B470 | Connection 6, in main wiring harness |
| B528 | Connection 1 (LIN bus) in main wiring harness |
| * | For models with anti-theft alarm system |
Wiring Diagram AUDI Q3 2012 - Control unit in dash panel insert - Data bus diagnostic interface
| J285 | Control unit in dash panel insert |
| J519 | Onboard supply control unit |
| J533 | Data bus diagnostic interface |
| T20 | 20-pin connector |
| T32 | 32-pin connector |
| T52c | 52-pin connector |
| B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
| B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
| B708 | Connection 1 (dash panel insert CAN bus high) in main wiring harness |
| B709 | Connection 1 (dash panel insert CAN bus low) in main wiring harness |
Wiring Diagram AUDI Q3 2012 - Front left window regulator switch - Rear left window regulator switch - in driver door - Rear right window regulator switch - in driver door - Front right window regulator switch in driver door - Childproof lock button - Button for left childproof lock - Button for right childproof lock - Driver door control unit
| E40 | Front left window regulator switch |
| E53 | Rear left window regulator switch, in driver door |
| E55 | Rear right window regulator switch, in driver door |
| E81 | Front right window regulator switch in driver door |
| E318 | Childproof lock button |
| E510 | Button for left childproof lock |
| E511 | Button for right childproof lock |
| E512 | Operating unit for window regulator in driver door |
| J386 | Driver door control unit |
| T32b | 32-pin connector |
| B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
| B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
| * | Only models with no childproof locks |
| *2 | Only models with childproof locks |
Wiring Diagram AUDI Q3 2012 - Mirror adjustment switch - Mirror adjustment changeover switch - Adjustment switch for mirror with fold-in feature - Interior monitoring switch - Driver side interior locking button for central locking system - Driver door control unit
| E43 | Mirror adjustment switch |
| E48 | Mirror adjustment changeover switch |
| E168 | Adjustment switch for mirror with fold-in feature |
| E183 | Interior monitoring switch |
| E308 | Driver side interior locking button for central locking system |
| J386 | Driver door control unit |
| T32b | 32-pin connector |
| 205 | Earth connection, in driver door wiring harness |
| B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
| B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
| R52 | Connection (58s), in driver side door wiring harness |
| * | Only models with interior monitor |
Wiring Diagram AUDI Q3 2012 - Driver door control unit - Central locking SAFELOCK function warning lamp - Driver door opener illumination bulb - Driver door storage compartment illumination bulb - Driver door ambient lighting bulb - Driver side door warning lamp - Front left entry light
| J386 | Driver door control unit |
| K133 | Central locking SAFELOCK function warning lamp |
| L108 | Driver door opener illumination bulb |
| L160 | Driver door storage compartment illumination bulb |
| L164 | Driver door ambient lighting bulb |
| T32b | 32-pin connector |
| W30 | Driver side door warning lamp |
| W31 | Front left entry light |
| 205 | Earth connection, in driver door wiring harness |
| B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
| B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
| R56 | Connection (entry light), in driver door wiring harness |
| R94 | Connection 1 in driver side door wiring harness |
| * | Only models with additional lights |
| *2 | Only models with radio chorus |
| *3 | According to equipment |
Wiring Diagram AUDI Q3 2012 - Driver door control unit - Driver door storage compartment illumination bulb - Driver door ambient lighting bulb - Loudspeaker background lighting bulb 1 - Loudspeaker background lighting bulb 2 - Driver side exterior mirror - Driver side mirror adjustment motor 2 - Driver side window regulator motor
| G514 | Potentiometer for horizontal adjustment of driver side mirror |
| G515 | Potentiometer for vertical adjustment of driver side mirror |
| J386 | Driver door control unit |
| L160 | Driver door storage compartment illumination bulb |
| L164 | Driver door ambient lighting bulb |
| L211 | Loudspeaker background lighting bulb 1 |
| L212 | Loudspeaker background lighting bulb 2 |
| T2ad | 2-pin connector |
| T3ac | 3-pin connector |
| T6f | 6-pin connector |
| T8v | 8-pin connector |
| T16e | 16-pin connector |
| T32b | 32-pin connector |
| VX4 | Driver side exterior mirror |
| V17 | Driver side mirror adjustment motor 2 |
| V147 | Driver side window regulator motor |
| 205 | Earth connection, in driver door wiring harness |
| B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
| B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
| R95 | Connection 2 in driver side door wiring harness |
| * | Only models with radio concert |
| *2 | Only models with MMI |
| *3 | Only models with additional lights |
| *4 | Only models with BOSE sound system |
| *5 | Only models with electric seat adjustment and memory function |
Wiring Diagram AUDI Q3 2012 - Driver door control unit - Lane change assist warning lamp in driver side exterior mirror - Driver side turn signal repeater bulb - Driver side exterior mirror - Driver side fold-in mirror motor - Driver side mirror adjustment motor - Heated exterior mirror on driver side
| J386 | Driver door control unit |
| K233 | Lane change assist warning lamp in driver side exterior mirror |
| L131 | Driver side turn signal repeater bulb |
| T3ac | 3-pin connector |
| T8v | 8-pin connector |
| T16e | 16-pin connector |
| T20c | 20-pin connector |
| T27a | 27-pin connector, on right A-pillar |
| VX4 | Driver side exterior mirror |
| V121 | Driver side fold-in mirror motor |
| V149 | Driver side mirror adjustment motor |
| Y20 | Driver side automatic anti-dazzle exterior mirror |
| Z4 | Heated exterior mirror on driver side |
| B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
| B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
| * | see applicable current flow diagram for lane change assist |
| *2 | Only models with automatic anti-dazzle exterior mirror |
| *3 | Only models with automatic anti-dazzle interior mirror |
| *4 | Only models with electric seat adjustment and memory function |
Wiring Diagram AUDI Q3 2012 - Driver side central locking lock unit - Driver door control unit
| E530 | Button for lane change assist |
| F2 | Driver door contact switch |
| F133 | Front right central locking actuator |
| F220 | Driver side central locking lock unit |
| F241 | Driver side contact switch in lock cylinder |
| G415 | Driver door exterior handle contact sensor |
| J386 | Driver door control unit |
| L156 | Switch illumination bulb |
| T20c | 20-pin connector |
| T27a | 27-pin connector, on right A-pillar |
| V56 | Driver door central locking motor |
| V161 | Driver door central locking SAFELOCK function motor |
| 303 | Earth connection 3, in drive side door wiring harness |
| B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
| B398 | Connection 2 (convenience CAN bus, high), in main wiring harness |
| B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
| B407 | Connection 2 (convenience CAN bus, low), in main wiring harness |
| * | Only models with entry and start authorisation |
| *2 | Only models with lane change assist |
| *3 | see applicable current flow diagram |
| *4 | Only models with no entry and start authorisation |
| *5 | According to equipment |
Wiring Diagram AUDI Q3 2012 - Rear right door control unit - Rear right door opener illumination bulb - Rear right door ambient lighting bulb - Rear right door storage compartment illumination bulb - Rear right entry light - Rear right door warning lamp
| J389 | Rear right door control unit |
| L111 | Rear right door opener illumination bulb |
| L167 | Rear right door ambient lighting bulb |
| L171 | Rear right door storage compartment illumination bulb |
| T16j | 16-pin connector |
| T20f | 20-pin connector |
| T27c | 27-pin connector, on right B-pillar |
| W34 | Rear right entry light |
| W38 | Rear right door warning lamp |
| 208 | Earth connection, in rear right door wiring harness |
| R59 | Connection (entry light), in rear right door wiring harness |
| R90 | Connection 1, in rear right door wiring harness |
| * | Only models with additional lights |
| *2 | Only models with radio chorus |
| *3 | According to equipment |
Wiring Diagram AUDI Q3 2012 - Rear right window regulator switch - in door - Rear right door control unit - Rear right door ambient lighting bulb - Rear right door storage compartment illumination bulb - Rear right window regulator motor
| E54 | Rear right window regulator switch, in door |
| J389 | Rear right door control unit |
| L167 | Rear right door ambient lighting bulb |
| L171 | Rear right door storage compartment illumination bulb |
| T6i | 6-pin connector |
| T16j | 16-pin connector |
| V27 | Rear right window regulator motor |
| 208 | Earth connection, in rear right door wiring harness |
| R32 | Connection 2, in rear right door wiring harness |
| * | Only models with radio concert |
| *2 | Only models with MMI |
| *3 | Only models with additional lights |
| *4 | According to equipment |
Wiring Diagram AUDI Q3 2012 - Rear right central locking lock unit - Rear right childproof lock contact switch - Rear right door control unit - Rear right childproof lock motor
| F11 | Rear right door contact switch |
| F134 | Rear right central locking actuator |
| F223 | Rear right central locking lock unit |
| F345 | Rear right childproof lock contact switch |
| J389 | Rear right door control unit |
| T20f | 20-pin connector |
| V97 | Rear right door central locking motor |
| V143 | Rear right childproof lock motor |
| V164 | Rear right door central SAFELOCK function locking motor |
| * | Only models with childproof locks |
| *2 | Only models with no childproof locks |
Wiring Diagram AUDI Q3 2012 - Front passenger side central locking lock unit - Front passenger door control unit
| F3 | Front passenger door contact switch |
| F131 | Front left central locking actuator |
| F221 | Front passenger side central locking lock unit |
| G416 | Front passenger door exterior handle contact sensor |
| J387 | Front passenger door control unit |
| T20d | 20-pin connector |
| T27 | 27-pin connector, on left A-pillar |
| V57 | Front passenger door central locking motor |
| V162 | Front passenger door central locking SAFELOCK function motor |
| 304 | Earth connection 3, in front passenger side door wiring harness |
| 373 | Earth connection 8, in main wiring harness |
| * | Only models with no entry and start authorisation |
| *2 | Only models with entry and start authorisation |
| *3 | see applicable current flow diagram |
Wiring Diagram AUDI Q3 2012 - Front passenger door control unit - Lane change assist warning lamp in front passenger side exterior mirror - Front passenger side exterior mirror - Front passenger side mirror adjustment motor 2 - Front passenger side fold-in mirror motor - Front passenger side mirror adjustment motor
| G516 | Potentiometer for horizontal adjustment of front passenger side mirror |
| G517 | Potentiometer for vertical adjustment of front passenger side mirror |
| J387 | Front passenger door control unit |
| K234 | Lane change assist warning lamp in front passenger side exterior mirror |
| T3ad | 3-pin connector |
| T8w | 8-pin connector |
| T16f | 16-pin connector |
| T20d | 20-pin connector |
| T27 | 27-pin connector, on left A-pillar |
| VX5 | Front passenger side exterior mirror |
| V25 | Front passenger side mirror adjustment motor 2 |
| V122 | Front passenger side fold-in mirror motor |
| V150 | Front passenger side mirror adjustment motor |
| Y7 | Automatic anti-dazzle interior mirror |
| B427 | Connection 1 (mirror signal), in main wiring harness |
| B428 | Connection 2 (mirror signal), in main wiring harness |
| * | see applicable current flow diagram for lane change assist |
| *2 | Only models with automatic anti-dazzle interior mirror |
| *3 | Only models with electric seat adjustment and memory function |
Wiring Diagram AUDI Q3 2012 - Window regulator switch in front passenger door - Front passenger side interior locking button for central locking system - Front passenger door control unit - Front passenger side turn signal repeater bulb - Front passenger side exterior mirror - Heated exterior mirror on front passenger side
| E107 | Window regulator switch in front passenger door |
| E309 | Front passenger side interior locking button for central locking system |
| J387 | Front passenger door control unit |
| L132 | Front passenger side turn signal repeater bulb |
| T16f | 16-pin connector |
| T32c | 32-pin connector |
| VX5 | Front passenger side exterior mirror |
| Y21 | Front passenger side automatic anti-dazzle exterior mirror |
| Z5 | Heated exterior mirror on front passenger side |
| 206 | Earth connection, in front passenger door wiring harness |
| R53 | Connection (58s), in driver side door wiring harness |
| * | According to equipment |
| *2 | Only models with automatic anti-dazzle exterior mirror |
Wiring Diagram AUDI Q3 2012 - Front passenger door control unit - Front passenger door opener illumination bulb - Front passenger door storage compartment illumination bulb - Front passenger door ambient lighting bulb - Front right entry light - Front passenger side door warning lamp
| J387 | Front passenger door control unit |
| L109 | Front passenger door opener illumination bulb |
| L161 | Front passenger door storage compartment illumination bulb |
| L165 | Front passenger door ambient lighting bulb |
| T32c | 32-pin connector |
| W32 | Front right entry light |
| W36 | Front passenger side door warning lamp |
| 206 | Earth connection, in front passenger door wiring harness |
| R57 | Connection (entry light), in front passenger door wiring harness |
| R98 | Connection 1 in front passenger side door wiring harness |
| * | Only models with additional lights |
| *2 | Only models with radio chorus |
| *3 | According to equipment |
Wiring Diagram AUDI Q3 2012 - Front passenger door control unit - Front passenger door storage compartment illumination bulb - Front passenger door ambient lighting bulb - Loudspeaker background lighting bulb 3 - Loudspeaker background lighting bulb 4 - Front passenger side window regulator motor
| J387 | Front passenger door control unit |
| L161 | Front passenger door storage compartment illumination bulb |
| L165 | Front passenger door ambient lighting bulb |
| L217 | Loudspeaker background lighting bulb 3 |
| L218 | Loudspeaker background lighting bulb 4 |
| T6g | 6-pin connector |
| T32c | 32-pin connector |
| V148 | Front passenger side window regulator motor |
| 206 | Earth connection, in front passenger door wiring harness |
| R99 | Connection 2 in front passenger side door wiring harness |
| * | Only models with BOSE sound system |
| *2 | Only models with additional lights |
| *3 | Only models with radio concert |
| *4 | Only models with MMI |
Wiring Diagram AUDI Q3 2012 - Rear left door control unit - Rear left door opener illumination bulb - Rear left door ambient lighting bulb - Rear left door storage compartment illumination bulb - Rear left entry light - Rear left door warning lamp
| J388 | Rear left door control unit |
| L110 | Rear left door opener illumination bulb |
| L166 | Rear left door ambient lighting bulb |
| L170 | Rear left door storage compartment illumination bulb |
| T16i | 16-pin connector |
| T20e | 20-pin connector |
| T27b | 27-pin connector, on left B-pillar |
| W33 | Rear left entry light |
| W37 | Rear left door warning lamp |
| 207 | Earth connection, in rear left door wiring harness |
| R31 | Connection 1, in rear left door wiring harness |
| R58 | Connection (entry light), in rear left door wiring harness |
| * | Only models with additional lights |
| *2 | Only models with radio chorus |
| *3 | According to equipment |
Wiring Diagram AUDI Q3 2012 - Rear left window regulator switch - in door - Rear left door control unit - Rear left door ambient lighting bulb - Rear left door storage compartment illumination bulb - Rear left window regulator motor
| E52 | Rear left window regulator switch, in door |
| J388 | Rear left door control unit |
| L166 | Rear left door ambient lighting bulb |
| L170 | Rear left door storage compartment illumination bulb |
| T6h | 6-pin connector |
| T16i | 16-pin connector |
| V26 | Rear left window regulator motor |
| 207 | Earth connection, in rear left door wiring harness |
| R102 | Connection 2, in rear left door wiring harness |
| * | Only models with radio concert |
| *2 | Only models with MMI |
| *3 | Only models with additional lights |
| *4 | According to equipment |
Wiring Diagram AUDI Q3 2012 - Rear left central locking lock unit - Rear left childproof lock contact switch - Rear left door control unit - Rear left childproof lock motor
| F10 | Rear left door contact switch |
| F132 | Rear left central locking actuator |
| F222 | Rear left central locking lock unit |
| F344 | Rear left childproof lock contact switch |
| J388 | Rear left door control unit |
| T20e | 20-pin connector |
| V115 | Rear left door central locking motor |
| V142 | Rear left childproof lock motor |
| V163 | Rear left door central locking SAFELOCK function motor |
| * | Only models with no childproof locks |
| *2 | Only models with childproof locks |
AUDI Q3 2012 Overview of fuses
| 1 - |
| q | Fitting location for models with right-hand drive: |
| q | Position of fuses for models with left-hand drive: |
| q | Position of fuses for models with right-hand drive: |
| q | Fuse assignment: |
| q | Fuse assignment, from August 2011: |
| q | Fitting location with battery in engine compartment, from November 2012: |
| q | Fuse assignment, from November 2012: |
| q | Fuse assignment, from August 2011: |
| q | Fitting location with battery in engine compartment, from November 2012: |
| q | Fitting location with battery in luggage compartment, from May 2013: |
| q | Fuse assignment with battery in engine compartment, from November 2012: |
| q | Fuse assignment with battery in luggage compartment, from May 2013: |
| q | Fuse assignment with battery in luggage compartment, from May 2013: |
|
| SA - | Fuse holder A |
| SA1 - | Fuse 1 on fuse holder A , |
| SA2 - | Fuse 2 on fuse holder A , |
| SA3 - | Fuse 3 on fuse holder A , |
| SA4 - | Fuse 4 on fuse holder A , |
| SA5 - | Fuse 5 on fuse holder A , |
| SA6 - | Fuse 6 on fuse holder A , |
| SA7 - | Fuse 7 on fuse holder A , |
| Fuses in fuse holder A -SA- , from August 2011, up to October 2012 |
| Current Flow Diagram designation | Nominal value | Function/component | Terminal | |||
| Fuse 1 on fuse holder A -SA1- | 200 A | - | Alternator -C- | 30 | ||
| Fuse 2 on fuse holder A -SA2- | 80 A | - | Power steering control unit -J500- | 30 | ||
| Fuse 3 on fuse holder A -SA3- | 50 A | - | Supply for fuses: -SC40- , -SC41- , -SC42- | 30 | ||
| Fuse 4 on fuse holder A -SA4- | 80 A | - | High heat output relay -J360- | 30 | ||
| Fuse 5 on fuse holder A -SA5- | 80 A | - | Socket relay -J807- Supply for fuses: -SC7- , -SC8- , -SC20- to -SC24- , -SC43- to -SC53- , -SC54- , -SC55- , -SC56- , -SC57- , -SC58- | 30 | ||
| Fuse 5 on fuse holder A -SA5- | 80 A | - | Supply for fuses: -SC28- to -SC33- for models without start/stop system only | 30 | ||
| Fuse 6 on fuse holder A -SA6- | 40 A | - | Low heat output relay -J359- | 30 | ||
| Fuse 7 on fuse holder A -SA7- | 60 A | - | Radiator fan control unit -J293- | 30 | ||
|
| SA - | Fuse holder A |
| SA1 - | Fuse 1 on fuse holder A , |
| SA2 - | Fuse 2 on fuse holder A , |
| SA3 - | Fuse 3 on fuse holder A , |
| SA4 - | Fuse 4 on fuse holder A , |
| SA5 - | Fuse 5 on fuse holder A , |
| SA6 - | Fuse 6 on fuse holder A , |
| SA7 - | Fuse 7 on fuse holder A , |
| SA8 - | Fuse 8 on fuse holder A , |
| Fuses in fuse holder A -SA- , with battery in engine compartment, from November 2012 |
| Current Flow Diagram designation | Nominal value | Function/component | Terminal | |||
| Fuse 1 on fuse holder A -SA1- | 200 A | - | Alternator -C- | 30 | ||
| Fuse 2 on fuse holder A -SA2- | 80 A | - | Power steering control unit -J500- | 30 | ||
| Fuse 3 on fuse holder A -SA3- | 50 A | - | Supply for fuses: -SC40- , -SC41- , -SC42- | 30 | ||
| Fuse 4 on fuse holder A -SA4- | 60 A | - | Radiator fan control unit -J293- | 30 | ||
| Fuse 5 on fuse holder A -SA5- | 80 A | - | Supply for fuses: -SC28- to -SC33- for models without start/stop system only | 30 | ||
| Fuse 5 on fuse holder A -SA5- | 80 A | - | Socket relay -J807- Supply for fuses: -SC7- , -SC8- , -SC20- to -SC24- , -SC43- to -SC53- , -SC54- , -SC55- , -SC56- , -SC57- , -SC58- | 30 | ||
| Fuse 6 on fuse holder A -SA6- | 70 A | - | High heat output relay -J360- | 30 | ||
| Fuse 7 on fuse holder A -SA7- | 60 A | - | Terminal 30 fuse, trailer towing attachment -S77- | 30 | ||
| Fuse 8 on fuse holder A -SA8- | 40 A | - | Low heat output relay -J359- | 30 | ||
|
| SA - | Fuse holder A |
| SA1 - | Fuse 1 on fuse holder A , |
| SA2 - | Fuse 2 on fuse holder A , |
| SA3 - | Fuse 3 on fuse holder A , |
| SA4 - | Fuse 4 on fuse holder A , |
| SA5 - | Fuse 5 on fuse holder A , |
| SA6 - | Fuse 6 on fuse holder A , |
| SA7 - | Fuse 7 on fuse holder A , |
| SA8 - | Fuse 8 on fuse holder A , |
| Fuses in fuse holder A -SA- , with battery in luggage compartment, from May 2013 |
| Current Flow Diagram designation | Nominal value | Function/component | Terminal | |||
| Fuse 1 on fuse holder A -SA1- | 200 A | - | Alternator -C- | 30 | ||
| Fuse 2 on fuse holder A -SA2- | 80 A | - | Power steering control unit -J500- | 30 | ||
| Fuse 3 on fuse holder A -SA3- | 50 A | - | not assigned | 30 | ||
| Fuse 4 on fuse holder A -SA4- | 60 A | - | Radiator fan control unit -J293- | 30 | ||
| Fuse 5 on fuse holder A -SA5- | 80 A | - | not assigned | 30 | ||
| Fuse 6 on fuse holder A -SA6- | 70 A | - | not assigned | 30 | ||
| Fuse 7 on fuse holder A -SA7- | 60 A | - | Terminal 30 fuse, trailer towing attachment -S77- | 30 | ||
| Fuse 8 on fuse holder A -SA8- | 40 A | - | Suppression filter -C24- | 30 | ||
|
| A - | Fuse holder B -SB- , |
| Fuse colours: |
| t | 50 A - red |
| t | 40 A - orange |
| t | 30 A - light-green |
| t | 25 A - natural (white) |
| t | 20 A - yellow |
| t | 15 A - light blue |
| t | 10 A - red |
| t | 7.5 A - brown |
| t | 5 A - light-brown |
| t | 3 A - purple |
| Fuses in fuse holder B -SB- , from August 2011, up to October 2012 |
| No. | Current flow diagram designation | Nominal value | Function/component | Terminal | ||
| F1 | - | Fuse 1 on fuse holder B -SB1- | 40 A | - | Voltage stabiliser -J532- Supply for fuses: -SC28- to -SC33- for models with start/stop system only | 30 |
| F2 | - | Fuse 2 on fuse holder B -SB2- | 10 A | - | Electric lumbar support adjustment Driver seat lumbar support adjustment switch -E176- Driver seat lumbar support longitudinal adjustment motor -V125- Driver seat lumbar support height adjustment motor -V129- Front passenger seat lumbar support adjustment switch -E177- Front passenger seat lumbar support longitudinal adjustment motor -V126- Front passenger seat lumbar support height adjustment motor -V130- | 30 |
| F3 | - | Fuse 3 on fuse holder B -SB3- | 5 A | - | Onboard supply control unit -J519- Battery monitoring control unit -J367- | 30 |
| F4 | - | Fuse 4 on fuse holder B -SB4- | 30 A | - | ABS control unit -J104- (MK60 valves) | 30 |
| F5 | - | Fuse 5 on fuse holder B -SB5- | 15 A | - | Mechatronic unit for dual clutch gearbox -J743- Selector lever sensors control unit -J587- | 30 |
| F6 | - | Fuse 6 on fuse holder B -SB6- | 5 A | - | Steering column electronics control unit -J527- | 30 |
| F7 | - | Fuse 7 on fuse holder B -SB7- | 30 A | - | Onboard supply control unit -J519- (left turn signal, left dipped beam headlight, left main beam headlight, left front fog light, right turning light, front right parking light, right daytime running light, left rear parking light, right brake light, left reversing light, right fog tail light) | 30 |
| F8 | - | Fuse 8 on fuse holder B -SB8- | 20 A | - | Windscreen and rear window washer pump -V59- Rear window wiper motor -V12- Central locking for rear left and right doors, fuel filler flap, rear window lock | 30 |
| F9 | - | Fuse 9 on fuse holder B -SB9- | 5 A | - | Aerial amplifier for mobile telephone -R86- Telephone bracket -R126- | 30 |
| F10 | - | Fuse 10 on fuse holder B -SB10- | 5 A | - | Terminal 30 voltage supply relay -J317- Engine control unit -J623- for models with diesel engine only | 30 |
| F10 | - | Fuse 10 on fuse holder B -SB10- | 10 A | - | Main relay -J271- Engine control unit -J623- for models with petrol engine only | 30 |
| F11 | - | Fuse 11 on fuse holder B -SB11- | - | - | not assigned | - |
| F12 | - | Fuse 12 on fuse holder B -SB12- | 5 A | - | Data bus diagnostic interface -J533- | 30 |
| F13 | - | Fuse 13 on fuse holder B -SB13- | 30 A | - | Engine control unit -J623- for models with diesel engine only | 87 |
| 25 A | Engine control unit -J623- for models with petrol engine only | |||||
| F14 | - | Fuse 14 on fuse holder B -SB14- | 20 A | - | Fuel pressure control valve -N276- Fuel metering vavle -N290- for models with diesel engine only | 87 |
| F14 | - | Fuse 14 on fuse holder B -SB14- | 20 A | - | Ignition coil 1 with output stage -N70- Ignition coil 2 with output stage -N127- Ignition coil 3 with output stage -N291- Ignition coil 4 with output stage -N292- for models with petrol engine only | 87 |
| F15 | - | Fuse 15 on fuse holder B -SB15- | 5 A | - | Automatic glow period control unit -J179- for models with diesel engine only | 87 |
| F15 | - | Fuse 15 on fuse holder B -SB15- | 10 A | - | Lambda probe heater -Z19- Lambda probe 1 heater after catalytic converter -Z29- for models with petrol engine only | 87 |
| F16 | - | Fuse 16 on fuse holder B -SB16- | 30 A | - | Onboard supply control unit -J519- (right turn signal, right dipped beam headlight, right main beam headlight, right front fog light, left turning light, front left parking light, left daytime running light, rear right parking light, left brake light, right reversing light, licence plate light, left fog tail light) | 30 |
| F17 | - | Fuse 17 on fuse holder B -SB17- | 15 A | - | Horn relay -J413- Treble horn -H2- Bass horn -H7- | 30 |
| F18 | - | Fuse 18 on fuse holder B -SB18- | 30 A | - | Control unit 1 for information electronics -J794- Radio -R- Voltage stabiliser -J532- Digital sound package control unit -J525- | 30 |
| F19 | - | Fuse 19 on fuse holder B -SB19- | 30 A | - | Wiper motor control unit -J400- | 30 |
| F20 | - | Fuse 20 on fuse holder B -SB20- | 20 A | - | Fuel pressure control valve -N276- for models with petrol engine only | 87 |
| F21 | - | Fuse 21 on fuse holder B -SB21- | 10 A | - | Lambda probe heater -Z19- for models with diesel engine only | 87 |
| F21 | - | Fuse 21 on fuse holder B -SB21- | 25 A | - | Fuel pump control valve -J538- for models with petrol engine only | 87 |
| F22 | - | Fuse 22 on fuse holder B -SB22- | 5 A | - | Clutch position sender -G476- | 87 |
| F23 | - | Fuse 23 on fuse holder B -SB23- | 10 A | - | Charge pressure control solenoid valve -N75- Exhaust gas recirculation cooler changeover valve -N345- Air mass meter -G70- for models with diesel engine only | 87 |
| F24 | - | Fuse 24 on fuse holder B -SB24- | 10 A | - | Fuel pump relay -J17- Radiator fan control unit -J293- Low heat output relay -J359- High heat output relay -J360- Exhaust gas recirculation cooler pump -V400- for models with diesel engine only | 87 |
| F24 | - | Fuse 24 on fuse holder B -SB24- | 10 A | - | Additional coolant pump relay -J496- Radiator fan control unit -J293- Engine component current supply relay -J757- Charge pressure control solenoid valve -N75- Activated charcoal filter solenoid valve 1 -N80- Camshaft control valve 1 -N205- Turbocharger air recirculation valve -N249- Intake manifold flap valve -N316- Oil pressure regulation valve -N428- for models with petrol engine only | 87 |
| F25 | Fuse 25 on fuse holder B -SB25- | 40 A | ABS control unit -J104- (MK60 ESP pump) | 30 | ||
| F26 | - | Fuse 26 on fuse holder B -SB26- | 30 A | - | Fuse 34 on fuse holder C -SC34- Fuse 35 on fuse holder C -SC35- | 30 |
| F27 | - | Fuse 27 on fuse holder B -SB27- | 50 A | - | Automatic glow period control unit -J179- Glow plug 1 -Q10- Glow plug 2 -Q11- Glow plug 3 -Q12- Glow plug 4 -Q13- for models with diesel engine only | 87 |
| F28 | - | Fuse 28 on fuse holder B -SB28- | 50 A | - | Terminal 30 fuse, trailer towing attachment -S77- for Australia only | 30 |
| F29 | - | Fuse 29 on fuse holder B -SB29- | 30 A | - | Driver seat adjustment thermal fuse 1 -S44- Front passenger seat adjustment thermal fuse 1 -S46- | 30 |
| F30 | - | Fuse 30 on fuse holder B -SB30- | 50 A | - | Terminal 15 voltage supply relay -J329- Supply for fuses: -SC9- to -SC16- , -SC25- , -SC26- , -SC27- | 30 |
|
| A - | Fuse holder B -SB- , |
| Fuse colours: |
| t | 50 A - red |
| t | 40 A - orange |
| t | 30 A - light-green |
| t | 25 A - natural (white) |
| t | 20 A - yellow |
| t | 15 A - light blue |
| t | 10 A - red |
| t | 7.5 A - brown |
| t | 5 A - light-brown |
| t | 3 A - purple |
| Fuses in fuse holder B -SB- , from November 2012 |
| No. | Current flow diagram designation | Nominal value | Function/component | Terminal | ||
| F1 | - | Fuse 1 on fuse holder B -SB1- | 15 A | - | Mechatronic unit for dual clutch gearbox -J743- Selector lever -E313- | 30 |
| F2 | - | Fuse 2 on fuse holder B -SB2- | 30 A | - | ABS control unit -J104- (MK60 valves) up to October 2014 | 30 |
| F2 | - | Fuse 2 on fuse holder B -SB2- | 40 A | - | ABS control unit -J104- (MK60 valves) from November 2014 | 30 |
| F3 | - | Fuse 3 on fuse holder B -SB3- | 15 A | - | Horn relay -J413- Treble horn -H2- Bass horn -H7- | 30 |
| F4 | - | Fuse 4 on fuse holder B -SB4- | 40 A | - | Voltage stabiliser -J532- Supply for fuses: -SC28- to -SC33- for models with start/stop system only | 30 |
| F5 | - | Fuse 5 on fuse holder B -SB5- | 5 A | - | Onboard supply control unit -J519- Battery monitoring control unit -J367- | 30 |
| F6 | - | Fuse 6 on fuse holder B -SB6- | 30 A | - | Onboard supply control unit -J519- (right turn signal, right dipped beam headlight, right main beam headlight, right front fog light, left turning light, front left parking light, left daytime running light, rear right parking light, left brake light, right reversing light, licence plate light, left fog tail light) | 30 |
| F7 | - | Fuse 7 on fuse holder B -SB7- | 20 A | - | Windscreen and rear window washer pump -V59- | 30 |
| F8 | - | Fuse 8 on fuse holder B -SB8- | 30 A | - | Onboard supply control unit -J519- (left turn signal, left dipped beam headlight, left main beam headlight, left front fog light, right turning light, front right parking light, right daytime running light, left rear parking light, right brake light, left reversing light, right fog tail light) | 30 |
| F9 | - | Fuse 9 on fuse holder B -SB9- | 10 A | - | Electric lumbar support adjustment Driver seat lumbar support adjustment switch -E176- Driver seat lumbar support longitudinal adjustment motor -V125- Driver seat lumbar support height adjustment motor -V129- Front passenger seat lumbar support adjustment switch -E177- Front passenger seat lumbar support longitudinal adjustment motor -V126- Front passenger seat lumbar support height adjustment motor -V130- | 30 |
| F10 | - | Fuse 10 on fuse holder B -SB10- | 5 A | - | Automatic glow period control unit -J179- for models with diesel engine only | 87 |
| F10 | - | Fuse 10 on fuse holder B -SB10- | 10 A | - | Lambda probe heater -Z19- Lambda probe 1 heater after catalytic converter -Z29- for models with petrol engine only | 87 |
| F11 | - | Fuse 11 on fuse holder B -SB11- | 5 A | - | Steering column electronics control unit -J527- | 30 |
| F12 | - | Fuse 12 on fuse holder B -SB12- | 5 A | - | Aerial amplifier for mobile telephone -R86- Telephone bracket -R126- | 30 |
| F13 | - | Fuse 13 on fuse holder B -SB13- | 5 A | - | Terminal 30 voltage supply relay -J317- Engine control unit -J623- for models with diesel engine only | 30 |
| F13 | - | Fuse 13 on fuse holder B -SB13- | 5 A | - | Main relay -J271- Engine control unit -J623- for models with 2.5 l petrol engine only | 30 |
| F13 | - | Fuse 13 on fuse holder B -SB13- | 10 A | - | Main relay -J271- Engine control unit -J623- for models with petrol engine only not for models with 2.5 l petrol engine | 30 |
| F14 | Fuse 14 on fuse holder B -SB14- | 30 A | Engine control unit -J623- for models with diesel engine only | 87 | ||
| F14 | Fuse 14 on fuse holder B -SB14- | 25 A | Engine control unit -J623- for models with petrol engine only not for models with 2.5 l petrol engine | 87 | ||
| F14 | Fuse 14 on fuse holder B -SB14- | 15 A | Engine control unit -J623- for models with 2.5 l petrol engine only | 87 | ||
| F15 | - | Fuse 15 on fuse holder B -SB15- | 5 A | - | Data bus diagnostic interface -J533- | 30 |
| F16 | - | Fuse 16 on fuse holder B -SB16- | 10 A | - | Charge pressure control solenoid valve -N75- Exhaust gas recirculation cooler changeover valve -N345- Air mass meter -G70- for models with diesel engine only | 87 |
| F16 | - | Fuse 16 on fuse holder B -SB16- | 10 A | - | Additional coolant pump relay -J496- Solenoid for coolant circuit -N492- Coolant circulation pump -V50- for models with 2.5 l petrol engine | 87 |
| F17 | - | Fuse 17 on fuse holder B -SB17- | 20 A | - | Fuel pressure control valve -N276- for models with petrol engine only not for models with 2.5 l petrol engine | 87 |
| F17 | - | Fuse 17 on fuse holder B -SB17- | 10 A | - | Fuel metering valve -N290- for models with 2.5 l petrol engine only | 87 |
| F18 | - | Fuse 18 on fuse holder B -SB18- | 10 A | - | Lambda probe heater -Z19- for models with diesel engine only | 87 |
| F18 | - | Fuse 18 on fuse holder B -SB18- | 25 A | - | Fuel pump control valve -J538- for models with petrol engine only | 87 |
| F19 | - | Fuse 19 on fuse holder B -SB19- | 30 A | - | Control unit 1 for information electronics -J794- Radio -R- Voltage stabiliser -J532- Digital sound package control unit -J525- | 30 |
| F20 | - | Fuse 20 on fuse holder B -SB20- | 5 A | - | Clutch position sender -G476- | 87 |
| F21 | - | Fuse 21 on fuse holder B -SB21- | 30 A | - | Control unit for reducing-agent heater -J891- | 30 |
| F22 | - | Fuse 22 on fuse holder B -SB22- | 30 A | - | Wiper motor control unit -J400- | 30 |
| F23 | - | Fuse 23 on fuse holder B -SB23- | 10 A | - | Fuel pump relay -J17- Radiator fan control unit -J293- Low heat output relay -J359- High heat output relay -J360- Exhaust gas recirculation cooler pump -V400- for models with diesel engine only | 87 |
| F23 | - | Fuse 23 on fuse holder B -SB23- | 10 A | - | Additional coolant pump relay -J496- Radiator fan control unit -J293- Engine component current supply relay -J757- Charge pressure control solenoid valve -N75- Activated charcoal filter solenoid valve 1 -N80- Camshaft control valve 1 -N205- Turbocharger air recirculation valve -N249- Intake manifold flap valve -N316- Oil pressure regulation valve -N428- for models with petrol engine only not for models with 2.5 l petrol engine | 87 |
| F23 | - | Fuse 23 on fuse holder B -SB23- | 10 A | - | Radiator fan control unit -J293- Engine component current supply relay -J757- Exhaust flap control unit -J883- Charge pressure control solenoid valve -N75- Activated charcoal filter solenoid valve 1 -N80- Turbocharger air recirculation valve -N249- Intake manifold flap valve -N316- for models with 2.5 l petrol engine only | 87 |
| F24 | - | Fuse 24 on fuse holder B -SB24- | 20 A | - | Fuel pressure control valve -N276- Fuel metering vavle -N290- for models with diesel engine only | 87 |
| F24 | - | Fuse 24 on fuse holder B -SB24- | 20 A | - | Ignition coil 1 with output stage -N70- Ignition coil 2 with output stage -N127- Ignition coil 3 with output stage -N291- Ignition coil 4 with output stage -N292- for models with petrol engine only not for models with 2.5 l petrol engine | 87 |
| F24 | - | Fuse 24 on fuse holder B -SB24- | 10 A | - | Camshaft control valve 1 -N205- Exhaust camshaft control valve 1 -N318- Oil pressure regulation valve -N428- for models with 2.5 l petrol engine only | 87 |
| F25 | Fuse 25 on fuse holder B -SB25- | 30 A | Driver door control unit -J386- Rear left door control unit -J388- | 30 | ||
| F26 | - | Fuse 26 on fuse holder B -SB26- | 30 A | - | Front passenger door control unit -J387- Rear right door control unit -J389- | 30 |
| F27 | - | Fuse 27 on fuse holder B -SB27- | 50 A | - | Terminal 15 voltage supply relay -J329- Supply for fuses: -SC9- to -SC16- , -SC25- , -SC26- , -SC27- | 30 |
| F27 | - | Fuse 27 on fuse holder B -SB27- | 40 A | - | Terminal 15 voltage supply relay -J329- Supply for fuses: -SC9- to -SC16- , -SC25- , -SC26- , -SC27- from November 2014 | 30 |
| F28 | - | Fuse 28 on fuse holder B -SB28- | 50 A | - | Automatic glow period control unit -J179- Glow plug 1 -Q10- Glow plug 2 -Q11- Glow plug 3 -Q12- Glow plug 4 -Q13- for models with diesel engine only | 87 |
| F28 | - | Fuse 28 on fuse holder B -SB28- | 30 A | - | Ignition coil 1 with output stage -N70- Ignition coil 2 with output stage -N127- Ignition coil 3 with output stage -N291- Ignition coil 4 with output stage -N292- Ignition coil 5 with output stage -N323- for models with 2.5 l petrol engine only | 87 |
| F29 | - | Fuse 29 on fuse holder B -SB29- | 30 A | - | Driver seat adjustment thermal fuse 1 -S44- Front passenger seat adjustment thermal fuse 1 -S46- | 30 |
| F30 | Fuse 30 on fuse holder B -SB30- | 40 A | ABS control unit -J104- (MK60 ESP pump) | 30 |
|
| A - | Fuse holder C -SC- , |
| Fuse colours: |
| t | 50 A - red |
| t | 40 A - orange |
| t | 30 A - light-green |
| t | 25 A - natural (white) |
| t | 20 A - yellow |
| t | 15 A - light blue |
| t | 10 A - red |
| t | 7.5 A - brown |
| t | 5 A - light-brown |
| t | 3 A - purple |
| Fuses in fuse holder C -SC- |
| No. | Current flow diagram designation | Nominal value | Function/component | Terminal | ||
| 1 | - | Fuse 1 on fuse holder C -SC1- | 10 A | - | Output module 1 for left LED headlight -A31- | 15 |
| 2 | - | Fuse 2 on fuse holder C -SC2- | 10 A | - | Output module 1 for right LED headlight -A27- | 15 |
| 3 | - | Fuse 3 on fuse holder C -SC3- | 5 A | - | Glove compartment light switch -E26- Driver side vanity mirror contact switch -F147- Front passenger side vanity mirror contact switch -F148- Glove compartment light -W6- Front passenger side illuminated vanity mirror -W14- Driver side illuminated vanity mirror -W20- Front roof module -WX3- discontinued from November 2014 | 30 |
| 4 | - | Fuse 4 on fuse holder C -SC4- | 5 A | - | Front camera for driver assist systems -R242- | 15 |
| 5 | - | Fuse 5 on fuse holder C -SC5- | 10 A | - | Output module for left headlight -J667- | 15 |
| 5 | - | Fuse 5 on fuse holder C -SC5- | 5 A | - | Power output module for left headlight -J667- from November 2014 | 15 |
| 6 | - | Fuse 6 on fuse holder C -SC6- | 10 A | - | Output module for right headlight -J668- | 15 |
| 6 | - | Fuse 6 on fuse holder C -SC6- | 5 A | - | Power output module for right headlight -J668- from November 2014 | 15 |
| 7 | - | Fuse 7 on fuse holder C -SC7- | 7.5 A | - | Control unit for electronic steering column lock -J764- | 30 |
| 8 | - | Fuse 8 on fuse holder C -SC8- | 7.5 A | - | Entry and start authorisation control unit -J518 - | 30 |
| 9 | - | Fuse 9 on fuse holder C -SC9- | 5 A | - | Front passenger airbag deactivated warning lamp -K145- Airbag control unit -J234- | 15 |
| 10 | - | Fuse 10 on fuse holder C -SC10- | 10 A | - | All-wheel drive control unit -J492- bis April 2013 | 15 |
| 11 | - | not assigned | - | - | - | |
| 12 | - | Fuse 12 on fuse holder C -SC12- | 5 A | - | Mechatronic unit for dual clutch gearbox -J743- Selector lever sensors control unit -J587- | 15 |
| 13 | - | Fuse 13 on fuse holder C -SC13- | 5 A | - | Oil level and oil temperature sender -G266- Start/stop system button -E693- TSC and ESP button -E256- Reversing light switch -F4- High-pressure sender -G65- Air quality sensor -G238- Climatronic control unit -J255- air conditioning system control unit -J301- Voltage supply relay 1 -J701- Voltage supply relay 2 -J710- AUTO HOLD warning lamp -K237- AUTO HOLD button -E540- Automatic anti-dazzle interior mirror -Y7- Interior mirror -EX5- Heater element for left washer jet -Z20- Heater element for right washer jet -Z21- Seat occupied recognition control unit -J706- | 15 |
| 14 | - | Fuse 14 on fuse holder C -SC14- | 7.5 A | - | Starter relay 1 -J906- Starter relay 2 -J907- gradual introduction | 15 |
| 14 | - | Fuse 14 on fuse holder C -SC14- | 7.5 A | - | Light switch -E1- Brake light switch -F- Brake pedal switch -F63- Engine control unit -J623- Trailer detector control unit -J345- Electronically controlled damping control unit -J250- ABS control unit -J104- Power steering control unit -J500- Data bus diagnostic interface -J533- Terminal 15 voltage supply relay 2 -J681- | 15 |
| 15 | - | Fuse 15 on fuse holder C -SC15- | 10 A | - | Crankcase breather heater element -N79- for models with diesel engine only | 15 |
| 15 | - | Fuse 15 on fuse holder C -SC15- | 10 A | - | Air mass meter -G70- for models with petrol engine only | 15 |
| 15 | - | Fuse 15 on fuse holder C -SC15- | 10 A | - | Headlight range control unit -J431- Voltage stabiliser -J532- Relay for automatic anti-dazzle interior mirror -J910- Control unit for electromechanical parking brake -J540- Cornering light and headlight range control unit -J745- Socket relay -J807- 16-pin connector -T16- (diagnostic connection) Headlight range control regulator -E102- Left headlight range control motor -V48- Right headlight range control motor -V49- | 15 |
| 16 | - | Fuse 16 on fuse holder C -SC16- | 5 A | - | Parking aid control unit -J446- Lane change assist control unit -J769- Lane change assist control unit 2 -J770- | 15 |
| 17 | - | Fuse 17 on fuse holder C -SC17- | 5 A | - | Reversing camera system control unit -J772- | 30 |
| 18 | - | Fuse 18 on fuse holder C -SC18- | 5 A | - | Radio -R- TV tuner -R78- Internet access control unit -J666- Chip card reader control unit -J676- | 30 |
| 19 | - | Fuse 19 on fuse holder C -SC19- | 5 A | - | Onboard supply control unit -J519- Voltage stabiliser -J532- Engine control unit -J623- | 50 |
| 20 | - | Fuse 20 on fuse holder C -SC20- | 5 A | - | ABS control unit -J104- Air conditioning control unit -J301- Climatronic control unit -J255- Interface control unit for vehicle location system -J843- | 30 |
| 21 | - | not assigned | - | - | - | |
| 22 | - | Fuse 22 on fuse holder C -SC22- | 10 A | - | Interior monitoring sensor -G273- Alarm horn -H12- | 30 |
| 23 | - | Fuse 23 on fuse holder C -SC23- | 10 A | - | Light switch -E1- Rain and light sensor -G397- Electromechanical parking brake warning lamp -K213- 16-pin connector -T16- (diagnostic connection) Front roof module -WX3- | 30 |
| 24 | - | Fuse 24 on fuse holder C -SC24- | 10 A | - | Relay for reducing agent metering system -J963- | 30 |
| 25 | - | Fuse 25 on fuse holder C -SC25- | 20 A | - | Fuse 4 on fuse holder C -SC4- Fuse 5 on fuse holder C -SC5- Fuse 6 on fuse holder C -SC6- | 15 |
| 26 | - | Fuse 26 on fuse holder C -SC26- | 15 A | - | Rear window wiper motor -V12- | 15 |
| 27 | - | Fuse 27 on fuse holder C -SC27- | 40 A | - | Starter relay 1 -J906- Starter relay 2 -J907- | 15 |
| 27 | - | Fuse 27 on fuse holder C -SC27- | 30 A | - | Starter relay 1 -J906- Starter relay 2 -J907- from November 2014 | 15 |
| 28 | - | Fuse 28 on fuse holder C -SC28- | 15 A | - | Control unit 1 for information electronics -J794- Radio -R- for models with radio system only | 30 |
| 28 | - | Fuse 28 on fuse holder C -SC28- | 7.5 A | - | Control unit 1 for information electronics -J794- for models with MMI only | 30 |
| 29 | - | Fuse 29 on fuse holder C -SC29- | 15 A | - | Fuse 18 on fuse holder C -SC18- Fuse 17 on fuse holder C -SC17- | 30 |
| 30 | - | Fuse 30 on fuse holder C -SC30- | 5 A | - | CD changer -R41- | 30 |
| 31 | - | Fuse 31 on fuse holder C -SC31- | 5 A | - | Display unit for front information display and operating unit control unit -J685- | 30 |
| 32 | - | Fuse 32 on fuse holder C -SC32- | 5 A | - | Control unit in dash panel insert -J285- | 30 |
| 33 | - | Fuse 33 on fuse holder C -SC33- | 10 A | - | Relay for automatic anti-dazzle interior mirror -J910- | 30 |
| 34 | - | Fuse 34 on fuse holder C -SC34- | 10 A | - | Rear left door control unit -J388- (central locking for rear left door) Rear right door control unit -J389- (central locking for rear right door ) up to October 2012 | 30 |
| 35 | - | Fuse 35 on fuse holder C -SC35- | 10 A | - | Driver door control unit -J386- (central locking for front left door) Front passenger control unit -J387- (central locking for front right door) up to October 2012 | 30 |
| 36 | - | Fuse 36 on fuse holder C -SC36- | 20 A | - | Socket -U- Cigarette lighter -U1- | 15 |
| 37 | - | Fuse 37 on fuse holder C -SC37- | 20 A | - | 12 V socket 2 -U18- 12 V socket -U5- | 15 |
| 38 | - | Fuse 38 on fuse holder C -SC38- | 15 A | - | Terminal 15 voltage supply relay 2 -J681- | 30 |
| 39 | - | not assigned | - | - | - | |
| 40 | - | Fuse 40 on fuse holder C -SC40- | 15 A | - | Trailer detector control unit -J345- | 30 |
| 41 | - | Fuse 41 on fuse holder C -SC41- | 20 A | - | Trailer detector control unit -J345- | 30 |
| 42 | - | Fuse 42 on fuse holder C -SC42- | 20 A | - | Trailer detector control unit -J345- | 30 |
| 43 | - | Fuse 43 on fuse holder C -SC43- | 20 A | - | Headlight washer system relay -J39- Headlight washer system pump -V11- | 30 |
| 44 | - | Fuse 44 on fuse holder C -SC44- | 30 A | - | Heated rear window relay -J9- Heated rear window -Z1- | 30 |
| 45 | - | Fuse 45 on fuse holder C -SC45- | 20 A | - | Control unit for electromechanical parking brake -J540- | 30 |
| 46 | - | Fuse 46 on fuse holder C -SC46- | 30 A | - | Rear left door control unit -J388- Rear right control unit -J389- up to October 2012 | 30 |
| 46 | - | Fuse 46 on fuse holder C -SC46- | 20 A | - | Trailer voltage supply relay -J941- from November 2014 | 30 |
| 47 | - | Fuse 47 on fuse holder C -SC47- | 30 A | - | Driver door control unit -J386- up to October 2012 | 30 |
| 47 | - | Fuse 47 on fuse holder C -SC47- | 15 A | - | All-wheel drive control unit -J492- from May 2013 | 30 |
| 48 | - | Fuse 48 on fuse holder C -SC48- | 30 A | - | Front passenger door control unit -J387- up to October 2012 | 30 |
| 49 | - | Fuse 49 on fuse holder C -SC49- | 25 A | - | Fuel pump relay -J17- Fuel pump control unit -J538- for models with diesel engine only | 30 |
| 50 | - | Fuse 50 on fuse holder C -SC50- | 40 A | - | Relief relay for X-contact -J59- Fresh air blower control unit -J126- Fresh air blower -V2- | 30 |
| 51 | - | Fuse 51 on fuse holder C -SC51- | 20 A | - | Control unit for electromechanical parking brake -J540- | 30 |
| 52 | - | Fuse 52 on fuse holder C -SC52- | 20 A | - | Onboard supply control unit -J519- (footwell lighting, terminal 30G, terminal 58d, luggage compartment lighting) Hazard lights warning lamp -K6- Fuel pump relay -J17- | 30 |
| 53 | - | Fuse 53 on fuse holder C -SC53- | 30 A | - | Climatronic control unit -J255- (front seat heating with automatic air conditioning system) Heated front seats control unit -J774- (front seat heating with manual air conditioning system) | 30 |
| 54 | - | Fuse 54 on fuse holder C -SC54- | 20 A | - | Sliding sunroof adjustment control unit -J245- | 30 |
| 55 | - | Fuse 55 on fuse holder C -SC55- | 20 A | - | Sunroof roller blind control unit -J394- | 30 |
| 56 | - | Fuse 56 on fuse holder C -SC56- | 20 A | - | Electronically controlled damping control unit -J250- | 30 |
| 57 | - | Fuse 57 on fuse holder C -SC57- | 10 A | - | Special vehicle control unit -J608- for models with driving aids only | 30 |
| 57 | - | Fuse 57 on fuse holder C -SC57- | 10 A | - | Voltage supply relay 1 -J701- for models with driving school equipment only | 30 |
| 58 | - | Fuse 58 on fuse holder C -SC58- | 5 A | - | Voltage supply relay 2 -J710- for models with driving school equipment only | 30 |
| 59 | - | not assigned | - | - | - | |
| 60 | - | not assigned | - | - | - |
|
| A - | Battery isolation igniter -N253- |
| 1 - | Fuse 1 on fuse holder D -SD1- , |
| 2 - | Fuse 2 on fuse holder D -SD2- , |
| 3 - | Fuse 3 on fuse holder D -SD3- , |
| Fuses in fuse holder D -SD- , with battery in luggage compartment, from May 2013 |
| Current Flow Diagram designation | Nominal value | Function/component | Terminal | |||
| Fuse 1 on fuse holder D -SD1- | 175 A | - | Electronics box supply | 30 | ||
| Fuse 2 on fuse holder D -SD2- | 50 A | - | Supply for fuses: -SC40- , -SC41- , -SC42- | 30 | ||
| Fuse 3 on fuse holder D -SD3- | 80 A | - | Supply for fuses: -SC28- to -SC33- for models without start/stop system only | 30 | ||
| Fuse 3 on fuse holder D -SD3- | 80 A | - | Socket relay -J807- Supply for fuses: -SC7- , -SC8- , -SC20- to -SC24- , -SC43- to -SC53- , -SC54- , -SC55- , -SC56- , -SC57- , -SC58- | 30 | ||
| Fuses on left under dash panel |
| 1 - | Driver seat adjustment thermal fuse 1 -S44- - 15 A |
| 2 - | Front passenger seat adjustment thermal fuse 1 -S46- - 15 A |
| 3 - | Terminal 30 fuse, trailer towing attachment -S77- - 30 A |
| q | for models with US equipment only |
| Fuses on right under dash panel |
| 1 - | Driver seat adjustment thermal fuse 1 -S44- - 15 A |
| 2 - | Front passenger seat adjustment thermal fuse 1 -S46- - 15 A |
| 3 - | Terminal 30 fuse, trailer towing attachment -S77- - 30 A |
| q | Australia only |
