Wiring Diagram AUDI A3 CABRIOLET 2009 - Fuses on fuse holder
A | Battery |
SA5 | Fuse 5 on fuse holder A |
SC12 | Fuse 12 on fuse holder C |
SC23 | Fuse 23 on fuse holder C |
SC28 | Fuse 28 on fuse holder C |
SC38 | Fuse 38 on fuse holder C |
SC43 | Fuse 43 on fuse holder C |
B272 | Positive connection (30), in main wiring harness |
* | Screw connection, is dropped from November 2008 |
** | ⇒ applicable Current Flow Diagram with battery in engine compartment |
Wiring Diagram AUDI A3 CABRIOLET 2009 - Fuses on fuse holder - terminal 15 voltage supply relay 2
J519 | Onboard supply control unit |
J681 | Terminal 15 voltage supply relay 2 |
J689 | Terminal 30 voltage supply relay 2 |
SB30 | Fuse 30 on fuse holder B |
SC2 | Fuse 2 on fuse holder C |
SC13 | Fuse 13 on fuse holder C |
SC15 | Fuse 15 on fuse holder C |
SC17 | Fuse 17 on fuse holder C |
T2t | 2-pin connector, black (connector L) |
T40 | 40-pin connector, black, on electronics box in engine compartment (connector J) |
B273 | Positive connection (15), in main wiring harness |
B277 | Positive connection 1 (15a), in main wiring harness |
B316 | Positive connection 2 (30a), in main wiring harness |
** | for models with anti-theft alarm system only |
*** | for models with interior light only |
Wiring Diagram AUDI A3 CABRIOLET 2009 - Front interior light with reading lights
E326 | Front interior light button |
E457 | Driver side reading light button |
E458 | Front passenger side reading light button |
J519 | Onboard supply control unit |
L156 | Switch illumination bulb |
T10d | 10-pin connector, black (connector K) |
T12c | 12-pin connector, black (connector B) |
W1 | Front interior light |
W13 | Front passenger side reading light |
W19 | Driver side reading light |
383 | Earth connection 18, in main wiring harness |
B325 | Positive connection 11 (30a), in main wiring harness |
B466 | Connection 2 in main wiring harness |
B467 | Connection 3 in main wiring harness |
B476 | Connection 12 in main wiring harness |
Wiring Diagram AUDI A3 CABRIOLET 2009 - Vanity mirror contact switch - interior monitoring sensor - alarm horn
F147 | Driver vanity mirror contact switch |
F148 | Front passenger side vanity mirror contact switch |
G273 | Interior monitoring sensor |
H12 | Alarm horn |
J519 | Onboard supply control unit |
W14 | Front passenger side illuminated vanity mirror |
W20 | Driver side illuminated vanity mirror |
383 | Earth connection 18, in main wiring harness |
388 | Earth connection 23, in main wiring harness |
389 | Earth connection 24, in main wiring harness |
B466 | Connection 2 in main wiring harness |
B528 | Connection 1 (LIN bus), in main wiring harness |
* | for models with illuminated vanity mirror without garage door operation only |
** | for models with anti-theft alarm system only |
Wiring Diagram AUDI A3 CABRIOLET 2009 - Storage compartment illumination - footwell lights - glove compartment light - central locking deadlock function warning lamp -SAFE-
E26 | Glove compartment light switch |
J519 | Onboard supply control unit |
K133 | Central locking deadlock function warning lamp -SAFE- |
L120 | Storage compartment illumination bulb |
T8a | 8-pin connector, black, near glove compartment |
T8d | 8-pin connector, black, behind centre console |
T12c | 12-pin connector, black (connector B) |
T20 | 20-pin connector, black, door A-pillar left |
W6 | Glove compartment light |
W9 | Left footwell light |
W10 | Right footwell light |
389 | Earth connection 24, in main wiring harness |
392 | Earth connection 27, in main wiring harness |
393 | Earth connection 28, in main wiring harness |
B466 | Connection 2 in main wiring harness |
Wiring Diagram AUDI A3 CABRIOLET 2009 - Storage compartment illumination - parking brake contact switch - bonnet contact switch
F266 | Bonnet contact switch |
F321 | Parking brake contact switch |
J393 | Convenience system central control unit |
J519 | Onboard supply control unit |
L159 | Centre console storage compartment illumination |
T8h | 8-pin connector, black (connector F) |
T12e | 12-pin connector, black (connector G) |
T18 | 18-pin connector, brown (connector A) |
381 | Earth connection 16, in main wiring harness |
389 | Earth connection 24, in main wiring harness |
390 | Earth connection 25, in main wiring harness |
B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
Wiring Diagram AUDI A3 CABRIOLET 2009 - Rear lid handle release button - rear lid contact switch for anti-theft alarm - rear lid central locking motor
E234 | Rear lid handle release button |
F123 | Rear lid contact switch for anti-theft alarm system |
J393 | Convenience system central control unit |
T6g | 6-pin connector, black (connector E) |
T8g | 8-pin connector, black (connector B) |
T18 | 18-pin connector, brown (connector A) |
V53 | Rear lid central locking motor |
380 | Earth connection 15, in main wiring harness |
B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
# | F248 is replaced by E234 |
Wiring Diagram AUDI A3 CABRIOLET 2009 - Tank filler flap locking motor - luggage compartment lights
J393 | Convenience system central control unit |
T8a | 8-pin connector, black, near glove compartment |
T8g | 8-pin connector, black (connector B) |
T18 | 18-pin connector, brown (connector A) |
V155 | Tank filler flap locking motor |
W18 | Luggage compartment light on left |
W35 | Right luggage compartment light |
384 | Earth connection 19, in main wiring harness |
391 | Earth connection 26, in main wiring harness |
B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
B477 | Connection 13 in main wiring harness |
Wiring Diagram AUDI A3 CABRIOLET 2009 - Aerials
J393 | Convenience system central control unit |
R111 | Aerial amplifier 2 |
T3v | 3-pin connector |
T18 | 18-pin connector, brown (connector A) |
391 | Earth connection 26, in main wiring harness |
B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
* | for models with radio or radio navigation system only |
** | not for models with radio or radio navigation system |
*** | on front right windscreen |
Wiring Diagram AUDI A3 CABRIOLET 2009 - Driver side central locking lock unit
F2 | Driver door contact switch |
F131 | Front left central locking actuator |
F220 | Driver side central locking lock unit |
F241 | Driver side contact switch in lock cylinder |
J386 | Driver door control unit |
T20f | 20-pin connector, black (connector A) |
V56 | Driver door central locking motor |
V161 | Driver door central locking deadlock function motor |
B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
Wiring Diagram AUDI A3 CABRIOLET 2009 - Mirror adjustment switch - alarm system off switch
E43 | Mirror adjustment switch |
E48 | Mirror adjustment change-over switch |
E168 | Adjustment switch for mirror with fold-in feature |
E183 | Interior monitoring deactivation switch |
E217 | Alarm system off switch |
J386 | Driver door control unit |
T32a | 32-pin connector, grey (connector C) |
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 |
* | for models with interior monitor only |
Wiring Diagram AUDI A3 CABRIOLET 2009 - Front left entry light - interior locking button - driver side - door warning lamp - driver side - driver door opener illumination
E308 | Driver side interior locking button |
J386 | Driver door control unit |
L108 | Driver door opener illumination bulb |
T20f | 20-pin connector, black (connector A) |
T32a | 32-pin connector, grey (connector C) |
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 |
* | for models with door opener illumination only |
** | for models with entry warning lamp and door warning lamp only |
# | E150 is replaced by E308 |
Wiring Diagram AUDI A3 CABRIOLET 2009 - Driver side mirror adjustment motor/fold-in mirror motor - driver side exterior mirror turn signal bulb
J386 | Driver door control unit |
L131 | Driver side exterior mirror turn signal bulb |
T16b | 16-pin connector, (connector B) |
T20 | 20-pin connector, black, door A-pillar left |
T20f | 20-pin connector, black (connector A) |
V17 | Driver side mirror adjustment motor |
V121 | Driver side fold-in mirror motor |
V149 | Driver side mirror adjustment motor |
Y20 | Driver side automatic anti-dazzle exterior mirror |
Z4 | Driver side heated exterior mirror |
B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
* | for models with automatic anti-dazzle interior mirror only |
** | for models with automatic anti-dazzle exterior mirror only |
Wiring Diagram AUDI A3 CABRIOLET 2009 - Window regulator switch - driver side
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 |
E189 | Central switch for window regulators in driver door |
J386 | Driver door control unit |
T20 | 20-pin connector, black, door A-pillar left |
T20f | 20-pin connector, black (connector A) |
T32a | 32-pin connector, grey (connector C) |
V147 | Driver side window regulator motor |
382 | Earth connection 17, in main wiring harness |
B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
* | for models with interior monitor only |
** | for models without interior monitor only |
Wiring Diagram AUDI A3 CABRIOLET 2009 - Rear window regulator motor
T18c | 18-pin connector, white (connector A) |
T18d | 18-pin connector, white (connector A) |
V26 | Rear left window regulator motor |
V27 | Rear right window regulator motor |
382 | Earth connection 17, in main wiring harness |
386 | Earth connection 21, in main wiring harness |
B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
Wiring Diagram AUDI A3 CABRIOLET 2009 - Front passenger side central locking lock unit
F3 | Front passenger door contact switch |
F133 | Front right central locking actuator |
F221 | Front passenger side central locking lock unit |
J387 | Front passenger door control unit |
T20a | 20-pin connector, black, door A-pillar right |
T20g | 20-pin connector, black (connector A) |
V57 | Front passenger door central locking motor |
V148 | Front passenger side window regulator motor |
V162 | Front passenger door central locking deadlock function motor |
386 | Earth connection 21, in main wiring harness |
B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
Wiring Diagram AUDI A3 CABRIOLET 2009 - Front passenger side mirror adjustment motor/fold-in mirror motor - front passenger side exterior mirror turn signal bulb
J387 | Front passenger door control unit |
L132 | Front passenger side exterior mirror turn signal bulb |
T16c | 16-pin connector, (connector B) |
T20a | 20-pin connector, black, door A-pillar right |
T20g | 20-pin connector, black (connector A) |
V25 | Front passenger side mirror adjustment motor |
V122 | Front passenger side fold-in mirror motor |
V150 | Front passenger side mirror adjustment motor |
Y7 | Automatic anti-dazzle interior mirror |
Y21 | Front passenger side automatic anti-dazzle exterior mirror |
Z5 | Front passenger side heated exterior mirror |
B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
B427 | Connection 1 (mirror signal), in main wiring harness |
B428 | Connection 2 (mirror signal), in main wiring harness |
* | for models with automatic anti-dazzle interior mirror only |
** | for models with automatic anti-dazzle exterior mirror only |
Wiring Diagram AUDI A3 CABRIOLET 2009 - Front right entry light - front passenger side door warning lamp - window regulator switch in front passenger door - front passenger door opener illumination
E107 | Window regulator switch in front passenger door |
J387 | Front passenger door control unit |
L109 | Front passenger door opener illumination bulb |
T32b | 32-pin connector, grey (connector C) |
W32 | Front right entry light |
W36 | Front passenger side door warning lamp |
206 | Earth connection, in door wiring harness, front passenger side |
B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
* | for models with door opener illumination only |
** | for models with entry warning lamp and door warning lamp only |
Wiring Diagram AUDI A3 CABRIOLET 2009 - Control unit in dash panel insert - data bus diagnostic interface
J285 | Control unit in dash panel insert |
J533 | Data bus diagnostic interface |
K102 | Rear lid closed warning lamp |
K166 | Door open warning lamp |
K201 | Fuel tank flap lock warning lamp |
SB12 | Fuse 12 on fuse holder B |
T20d | 20-pin connector, black (connector A) |
T32 | 32-pin connector, blue (connector A) |
T40 | 40-pin connector, black, on electronics box in engine compartment (connector J) |
B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
AUDI A3 CABRIOLET 2009 Overview of fuses
q | Location on main fuse holder, electronics box low, from November 2008 |
q | Position of fuses on main fuse holder, electronics box low, from March 2008 |
q | Position of fuses on main fuse holder, electronics box low, from November 2008 |
q | Fuse assignment for E-box low |
q | Position of fuses |
Main fuse holder: Location fuse holder A -SA- on electronics box low, from March 2008 |
Main Supply Connection: |
M - | Screw connection M (terminal 30) |
Position of fuses electronics box low, from March 2008 |
Current Flow Diagram designation | Nominal value | Function/component | Terminal | |||
Fuse 1 on fuse holder A -SA1- | 150 A | - | Alternator -C- (70 A) Alternator -C- (90 A) Alternator -C- (110 A) Alternator -C- (120 A) | 30 | ||
200 A | - | Alternator -C- (140 A) | 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 | - | Radiator fan thermal switch -F18- Radiator fan control unit -J293- Radiator fan -V7- | 30 | ||
Fuse 4 on fuse holder A -SA4- | 40 A | - | Low heat output relay -J359- | 30 | ||
Fuse 5 on fuse holder A -SA5- | 80 A | - | B272 Positive connection (30), in main wiring harness Supply for the fuses: -SC12- up to -SC17-, -SC22- up to -SC27-, -SC28-, -SC38-, -SC43- | 30 | ||
Fuse 6 on fuse holder A -SA6- | 80 A | - | High heat output relay -J360- | 30 | ||
Fuse 7 on fuse holder A -SA7- | - | - | Not assigned | - |
Main fuse holder: Location fuse holder A -SA- on electronics box low, from November 2008 |
Main Supply Connection: |
M - | Screw connection M (terminal 30) |
Position of fuses in electronics box low, from November 2008 |
Current Flow Diagram designation | Nominal value | Function/component | Terminal | |||
Fuse 1 on fuse holder A -SA1- | 150 A | - | Alternator -C- (70 A) Alternator -C- (90 A) Alternator -C- (110 A) Alternator -C- (120 A) | 30 | ||
200 A | - | Alternator -C- (140 A) | 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 | - | Radiator fan thermal switch -F18- Radiator fan control unit -J293- Radiator fan -V7- | 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 | - | B272 Positive connection (30), in main wiring harness Supply for the fuses: -SC12- up to -SC17-, -SC22- up to -SC27-, -SC28-, -SC38-, -SC43- | 30 | ||
Fuse 6 on fuse holder A -SA6- | 40 A | - | Low heat output relay -J359- | 30 | ||
Fuse 7 on fuse holder A -SA7- | - | - | Not assigned | - |
Location fuse holder B -SB- on electronics box low, in left of engine compartment |
Fuse colours |
50 A - red |
40 A - orange |
30 A - light-green |
25 A - natural (white) |
20 A - yellow |
15 A - light blue |
10 A - red |
7.5 A - brown |
5 A - light-brown |
3 A - purple |
Position of fuses electronics box low |
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 the fuses: -SC7- up to -SC11- only models with stop/start system applicable from May 2009 | 30 |
F1 | - | Fuse 1 on fuse holder B -SB1- | 40 A | - | Supply for the fuses: -SC7- up to -SC10- only models without stop/start system applicable from May 2009 | 30 |
F2 | - | Fuse 2 on fuse holder B -SB2- | 30 A | - | Mechatronic unit for dual clutch gearbox -J743- (7-speed dual clutch gearbox 0AM) | 30 |
F3 | - | Fuse 3 on fuse holder B -SB3- | 5 A | - | Onboard supply control unit -J519- | 30 |
F3 | - | Fuse 3 on fuse holder B -SB3- | 5 A | - | Battery monitor control unit -J367- applicable from May 2009 | 30 |
F4 | - | Fuse 4 on fuse holder B -SB4- | 20 A | - | ABS control unit -J104- (MK60 valves) | 30 |
F4 | - | Fuse 4 on fuse holder B -SB4- | 30 A | - | ABS control unit -J104- (MK70 valves) is dropped from May 2008 | 30 |
F5 | - | Fuse 5 on fuse holder B -SB5- | 15 A | - | Mechatronic unit for dual clutch gearbox -J743- | 30 |
F6 | - | Fuse 6 on fuse holder B -SB6- | 5 A | - | Control unit in dash panel insert -J285- is dropped from May 2009 | 30 |
F6 | - | Fuse 6 on fuse holder B -SB6- | 5 A | - | Steering column electronics control unit -J527- | 30 |
F7 | - | Not assigned | - | - | 30 | |
F8 | - | Fuse 8 on fuse holder B -SB8- | 15 A | - | Navigation operating electronics control unit -J402- (RNS-E) Control unit with display for radio and navigation system -J503- (RNS low) Radio -R- is dropped from May 2009 | 30 |
F8 | - | Fuse 8 on fuse holder B -SB8- | 25 A | - | Control unit with display for radio and navigation -J503- (for Japan only) is dropped from May 2009 | 30 |
F9 | - | Fuse 9 on fuse holder B -SB9- | 5 A | - | Navigation system with CD drive control unit -J401- Telephone transmitter and receiver unit -R36- Aerial amplifier for mobile telephone -R86- 18-pin connector -T18a- (VDA interface) is dropped from May 2009 | 30 |
F10 | - | Fuse 10 on fuse holder B -SB10- | 5 A | - | Motronic current supply relay -J271- (CBZB, CAXC) | 30 |
F10 | - | Fuse 10 on fuse holder B -SB10- | 5 A | - | Engine control units -J...- (CBAB, CBAA, CAYC, CFFA, CFFB, CBZB, CAXC) Terminal 30 voltage supply relay -J317- (BLS, CBAB, CBAA, CAYC, CFFA, CFFB) | 30 |
F10 | - | Fuse 10 on fuse holder B -SB10- | 10 A | - | Engine control units -J...- (BZB, CAWB, CDAA, CCZA) Motronic current supply relay -J271- (BZB, CAWB, CDAA, CCZA) | 30 |
F11 | - | Fuse 11 on fuse holder B -SB11- | 20 A | - | Auxiliary heater control unit -J364- | 30 |
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 units -J...- (BLS, CBAB, CBAA, CAYC, CFFA, CFFB) | 87 |
15 A | Engine control units -J...- (BZB, CAWB, BSE, CDAA, CCZA, CBZB, CAXC) | |||||
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 engine codes BZB, CAWB, CDAA, CCZA, CAXC only | 87 |
F14 | - | Fuse 14 on fuse holder B -SB14- | 20 A | - | Ignition coil 1 with output stage -N- Output stage -N122- Ignition coil 2 -N128- for models with engine codes BSE, CBZB only | 87 |
F14 | - | Fuse 14 on fuse holder B -SB14- | 20 A | - | Fuel pressure regulating valve -N276- Fuel metering valve -N290- for models with engine codes CBAB, CBAA, CAYC, CFFA, CFFB only is dropped from May 2011 | 87 |
F14 | - | Fuse 14 on fuse holder B -SB14- | 15 A | - | Fuel pressure regulating valve -N276- Fuel metering valve -N290- for models with engine codes CBAB, CBAA, CAYC, CFFA, CFFB only applicable from May 2011 | 87 |
F15 | - | Fuse 15 on fuse holder B -SB15- | 5 A | - | Fuel pump relay -J17- Automatic glow period control unit -J179- for models with engine codes BLS, CBAB, CBAA, CAYC, CFFA, CFFB only | 87 |
F15 | - | Fuse 15 on fuse holder B -SB15- | 5 A | - | Low heat output relay -J359- High heat output relay -J360- for models with engine codes BLS, CBAB, CBAA, CAYC, CFFA, CFFB only for models with auxiliary air heating only | 87 |
F15 | - | Fuse 15 on fuse holder B -SB15- | 5 A | - | Supplementary fuel pump relay -J832- for models with engine codes CBAB, CBAA, CFFA, CFFB only | 87 |
F15 | - | Fuse 15 on fuse holder B -SB15- | 10 A | - | Lambda probe heater -Z19- (CBZB, CAXC) Lambda probe 1 heater after catalytic converter -Z29- (CBZB, CAXC) | 87 |
F16 | - | Fuse 16 on fuse holder B -SB16- | 30 A | - | Onboard supply control unit -J519- Right side light supply, right main beam, right dipped beam, right turn signal, right fog light | 30 |
F17 | - | Fuse 17 on fuse holder B -SB17- | 15 A | - | High tone horn -H2- Low tone horn -H7- | 30 |
F18 | - | Fuse 18 on fuse holder B -SB18- | 30 A | - | Amplifier -R12- | 30 |
F18 | - | Fuse 18 on fuse holder B -SB18- | 30 A | - | Voltage stabiliser -J532- Amplifier -R12- only models with stop/start system applicable from May 2009 | 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- | 10 A | - | Coolant circulation pump -V50- (CBZB, CAXC) | 87 |
F20 | - | Fuse 20 on fuse holder B -SB20- | 20 A | - | Fuel pressure regulating valve -N276- (BZB, CAWB, CDAA, CCZA) is dropped from May 2011 | 87 |
F20 | - | Fuse 20 on fuse holder B -SB20- | 15 A | - | Fuel pressure regulating valve -N276- (BZB, CAWB, CDAA, CCZA) applicable from May 2011 | 87 |
F21 | - | Fuse 21 on fuse holder B -SB21- | 10 A | - | Lambda probe heater -Z19- (BLS, BZB, CAWB, CBAB, CBAA, CAYC, CFFA, CFFB) | 87 |
F21 | - | Fuse 21 on fuse holder B -SB21- | 20 A | - | Vacuum pump relay -J57- (CAXC) Vacuum pump for brakes -V192- (CAXC) | 87 |
F21 | - | Fuse 21 on fuse holder B -SB21- | 10 A | - | Lambda probe heater -Z19- (BSE, CDAA, CCZA) Lambda probe 1 heater after catalytic converter -Z29- (BSE, CDAA, CCZA) is dropped from May 2009 | 87 |
F21 | - | Fuse 21 on fuse holder B -SB21- | 15 A | - | Lambda probe heater -Z19- (BSE, CDAA, CCZA) Lambda probe 1 heater after catalytic converter -Z29- (BSE, CDAA, CCZA) applicable from May 2009 | 87 |
F22 | - | Fuse 22 on fuse holder B -SB22- | 5 A | - | Clutch position sender -G476- | 87 |
F22 | - | Fuse 22 on fuse holder B -SB22- | 5 A | - | Brake light switch -F- Brake pedal switch -F63- applicable from May 2009 | 87 |
F23 | - | Fuse 23 on fuse holder B -SB23- | 5 A | - | Continued coolant circulation relay -J151- (BZB, CAWB, CDAA, CCZA) Secondary air pump relay -J299- (BSE) Continued coolant circulation pump -V51- (BZB, CAWB, CDAA, CCZA) | 87 |
10 A | Charge pressure control solenoid valve -N75- (BLS, CBAB, CBAA, CAYC, CFFA, CFFB) Exhaust gas recirculation cooler change-over valve -N345- (BLS, CBAB, CBAA, CAYC, CFFA, CFFB) Air mass meter -G70- (CFFA, CFFB) | |||||
F23 | Fuse 23 on fuse holder B -SB23- | 15 A | Fuel pressure regulating valve -N276- (CBZB, CAXC) | |||
F24 | - | Fuse 24 on fuse holder B -SB24- | 10 A | - | Radiator fan control unit -J293- Additional coolant pump relay -J496- (CAXC) Engine component current supply relay -J757- (BZB, CAWB, CDAA, CCZA) Charge pressure control solenoid valve -N75- (CAWB, BZB, CDAA, CCZA, CAXC) Activated charcoal filter system solenoid valve 1 -N80- (CAWB, BZB, BSE, CDAA, CCZA, CBZB, CAXC) Variable intake manifold change-over valve -N156- (BSE) Inlet camshaft control valve 1 -N205- (CAWB, BZB, CDAA, CCZA, CAXC) Turbocharger air recirculation valve -N249- (CAWB, BZB, CDAA, CCZA, CAXC) Intake manifold flap valve -N316- (CAWB, BZB, CDAA, CCZA, CBZB) Oil pressure control valve -N428- (CDAA, CCZA) Pump for exhaust gas recirculation cooler -V400- (CBAB, CBAA, CAYC, CFFA, CFFB) | 87 |
F25 | - | Fuse 25 on fuse holder B -SB25- | 30 A | - | ABS control unit -J104- (MK70 ABS Pumpe) is dropped from May 2008 | 30 |
F25 | - | Fuse 25 on fuse holder B -SB25- | 40 A | - | ABS control unit -J104- (MK70 ABS pump and ABS valves) applicable from May 2008 | 30 |
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 | - | Onboard supply control unit -J519- Left side light supply, left main beam, left dipped beam, left turn signal, left fog light | 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 engine codes BLS, CBAB, CBAA, CAYC, CFFA, CFFB only | 87 |
F27 | - | Fuse 27 on fuse holder B -SB27- | 40 A | - | Secondary air pump motor -V101- (BSE) | 87 |
F28 | - | Fuse 28 on fuse holder B -SB28- | 40 A | - | Convertible roof actuation control unit -J256- (hydraulic pump) | 30 |
F29 | - | Fuse 29 on fuse holder B -SB29- | 50 A | - | B300 Positive connection 4 (30), in main wiring harness Supply for the fuses: -SC32- up to -SC37-, -SC39-, -SC44-, -SC45-, -SC48-, -S131- | 30 |
F30 | - | Fuse 30 on fuse holder B -SB30- | 50 A | - | Terminal 15 voltage supply relay 2 -J681- Supply for the fuses: -SC1- up to -SC6-, -SC29- up to -SC31-, -SC40- up to -SC42-, -SC46-, -SC47-, -SC49- | 30 |
Location fuse holder C -SC-, under left dash panel |
Fuse colours |
50 A - red |
40 A - orange |
30 A - light-green |
25 A - natural (white) |
20 A - yellow |
15 A - light blue |
10 A - red |
7.5 A - brown |
5 A - light-brown |
3 A - purple |
Position of fuses, fuse holder |
No. | Current Flow Diagram designation | Nominal value | Function/component | Terminal | ||
1 | - | Fuse 1 on fuse holder C -SC1- | 10 A | - | Lighting switch -E1- Headlight range control regulator -E102- Air mass meter -G70- (BLS, BZB, CAWB, CDAA, CCZA, CAYC) Trailer detector control unit -J345- Headlight range control unit -J431- Heater element for crankcase breather -N79- (BLS, CBAB, CBAA, BSE, CAYC, CFFA, CFFB) 16-pin connector -T16- (diagnostic connector) Left headlight range control motor -V48- Right headlight range control motor -V49- | 15 |
1 | - | Fuse 1 on fuse holder C -SC1- | 10 A | - | Air mass meter -G70- (CBAB, CBAA) | 15 |
1 | - | Fuse 1 on fuse holder C -SC1- | 10 A | - | Stop/start system button -E693- only models with stop/start system no longer fitted, phased from model year 2010 | 15 |
2 | - | Fuse 2 on fuse holder C -SC2- | 10 A | - | Engine control units -J...- Tiptronic switch -F189- Fuel pump relay -J17- (BSE) ABS control unit -J104- Current supply relay for Simos control unit -J363- (BSE) Power steering control unit -J500- Data bus diagnostic interface -J533- Fuel pump control unit -J538- (BZB, CAWB, CDAA, CCZA, CBZB, CAXC) Selector lever sensors control unit -J587- Mechatronic unit for dual clutch gearbox -J743- | 15 |
2 | - | Fuse 2 on fuse holder C -SC2- | 10 A | - | Brake light switch -F- Brake pedal switch -F63- is dropped from May 2009 | 15 |
2 | - | Fuse 2 on fuse holder C -SC2- | 10 A | - | Starter relay 1 -J906- Starter relay 2 -J907- Automatic anti-dazzle interior mirror relay -J910- applicable from May 2009 | 15 |
3 | - | Fuse 3 on fuse holder C -SC3- | 5 A | - | Airbag control unit -J234- Front passenger side airbag deactivated warning lamp -K145- | 15 |
4 | - | Fuse 4 on fuse holder C -SC4- | 5 A | - | Heated rear left seat switch with regulator -E128- Heated rear right seat switch with regulator -E129- Tyre pressure monitor button -E226- TCS and ESP button -E256- Garage door operating unit -E284- Reversing light switch -F4- High-pressure sender -G65- Air quality sensor -G238- Oil level and oil temperature sender -G266- Heater control unit -J162- Climatronic control unit -J255- Air conditioning system control unit -J301- Navigation system with CD drive control unit -J401- Parking aid control unit -J446- Garage door operation control unit -J530- Driver seat heating control unit -J726- Front passenger seat heating control unit -J727- Left washer jet heater element -Z20- Right washer jet heater element -Z21- | 15 |
4 | - | Fuse 4 on fuse holder C -SC4- | 5 A | - | Automatic anti-dazzle interior mirror -Y7- only models without stop/start system applicable from May 2009 | 15 |
4 | - | Fuse 4 on fuse holder C -SC4- | 5 A | - | Voltage stabiliser -J532- only models with stop/start system applicable from May 2009 | 15 |
4 | - | Fuse 4 on fuse holder C -SC4- | 5 A | - | Stop/start system button -E693- only models with stop/start system Gradual introduction during model year 2010 | 15 |
5 | - | Fuse 5 on fuse holder C -SC5- | 5 A | - | Power output module for left headlight -J667- | 15 |
6 | - | Fuse 6 on fuse holder C -SC6- | 5 A | - | Power output module for right headlight -J668- | 15 |
7 | - | Not assigned | - | - | - | |
8 | - | Fuse 8 on fuse holder C -SC8- | 5 A | - | Control unit in dash panel insert -J285- applicable from May 2009 | 30 |
9 | - | Fuse 9 on fuse holder C -SC9- | 15 A | - | Navigation operating electronics control unit -J402- (RNS-E) Control unit with display for radio and navigation system -J503- (RNS low) Radio -R- 8-pin connector -T8- (preparation for radio supply) applicable from May 2009 | 30 |
10 | - | Fuse 10 on fuse holder C -SC10- | 7.5 A | - | Telephone transmitter and receiver unit -R36- Connection for external audio sources -R199- 18-pin connector -T18a- (VDA interface) applicable from May 2009 | 30 |
11 | - | Fuse 11 on fuse holder C -SC11- | 10 A | - | Automatic anti-dazzle interior mirror relay -J910- Automatic anti-dazzle interior mirror -Y7- only models with stop/start system applicable from May 2009 | 30 |
12 | - | Fuse 12 on fuse holder C -SC12- | 10 A | - | Driver door control unit -J386- Front passenger door control unit -J387- | 30 |
13 | - | Fuse 13 on fuse holder C -SC13- | 10 A | - | Convenience system central control unit -J393- is dropped from May 2009 | 30 |
14 | - | Fuse 14 on fuse holder C -SC14- | 10 A | - | ABS control unit -J104- (MK60 with hydraulic brake servo) Selector lever sensors control unit -J587- | 30 |
15 | - | Fuse 15 on fuse holder C -SC15- | 10 A | - | Front interior light -W1- | 30 |
16 | - | Fuse 16 on fuse holder C -SC16- | 10 A | - | Rain and light sensor -G397- Heater control unit -J162- Climatronic control unit -J255- Air conditioning system control unit -J301- Remote control receiver for auxiliary heater -R64- 16-pin connector -T16- (diagnostic connector) | 30 |
16 | - | Fuse 16 on fuse holder C -SC16- | 10 A | - | Lighting switch -E1- applicable from May 2009 | 30 |
17 | - | Fuse 17 on fuse holder C -SC17- | 5 A | - | Interior monitoring sensor -G273- Alarm horn -H12- | 30 |
18 | - | Fuse 18 on fuse holder C -SC18- | 5 A | - | Onboard supply control unit -J519- (diagnostic cable) Voltage stabiliser -J532- (diagnosis wiring) Engine control unit -J623- (diagnostic cable) only models with stop/start system applicable from May 2009 | 50 |
19 | - | Not assigned | - | - | - | |
20 | - | Not assigned | - | - | - | |
21 | - | Not assigned | - | - | - | |
22 | - | Fuse 22 on fuse holder C -SC22- | 40 A | - | Fresh air blower control unit -J126- Fresh air blower -V2- | 30 |
23 | - | Fuse 23 on fuse holder C -SC23- | 30 A | - | Driver side window regulator motor -V147- | 30 |
24 | - | Fuse 24 on fuse holder C -SC24- | 20 A | - | Cigarette lighter -U1- | 30 |
25 | - | Fuse 25 on fuse holder C -SC25- | 30 A | - | Heated rear window -Z1- | 30 |
26 | - | Fuse 26 on fuse holder C -SC26- | 20 A | - | Socket -U- (in luggage compartment) | 30 |
27 | - | Fuse 27 on fuse holder C -SC27- | 15 A | - | Fuel system pressurisation pump -G6- Fuel pump relay -J17- (BLS, CBAB, CBAA, BSE, CAYC, CFFA, CFFB) Electric fuel pump 2 relay -J49- (BSE) Fuel pump control unit -J538- (BZB, CAWB, CDAA, CCZA, CBZB, CAXC) | 30 |
27 | - | Fuse 27 on fuse holder C -SC27- | 15 A | - | Electric fuel pump 2 relay -J49- (BLS, CBAB, CBAA, CAYC, CFFA, CFFB) for models with auxiliary heating only | 30 |
27 | - | Fuse 27 on fuse holder C -SC27- | 15 A | - | Relay for supplementary fuel pump -J832- (CBAB, CBAA, CFFA, CFFB) Supplementary fuel pump -V393- (CBAB, CBAA, CFFA, CFFB) | 30 |
28 | - | Fuse 28 on fuse holder C -SC28- | 30 A | - | Rear left window regulator motor -V26- Rear right window regulator motor -V27-) | 30 |
29 | - | Not assigned | - | - | - | |
30 | - | Not assigned | - | - | - | |
31 | - | Fuse 31 on fuse holder C -SC31- | 20 | - | Vacuum pump relay -J57- (BSE) Vacuum pump for brakes -V192- (BSE) | 15 |
32 | - | Fuse 32 on fuse holder C -SC32- | 30 A | - | Headlight washer system pump -V11- | 30 |
33 | - | Fuse 33 on fuse holder C -SC33- | 25 A | - | Convertible roof actuation control unit -J256- | 30 |
34 | - | Fuse 34 on fuse holder C -SC34- | 20 A | - | Heated rear left seat control unit -J215- Heated rear right seat control unit -J216- | 30 |
35 | - | Not assigned | - | - | ||
36 | - | Fuse 36 on fuse holder C -SC36- | 10 A | - | Driver seat lumbar support adjustment switch -E176- Front passenger seat lumbar support adjustment switch -E177- | 30 |
37 | - | Fuse 37 on fuse holder C -SC37- | 20 A | - | Climatronic control unit -J255- (front seat heating) Driver seat heating control unit -J726- Front passenger seat heating control unit -J727- | 30 |
38 | - | Fuse 38 on fuse holder C -SC38- | 30 A | - | Front passenger side window regulator motor -V148- | 30 |
39 | - | Fuse 39 on fuse holder C -SC39- | 5 A | - | Interface control unit for vehicle location system -J843- (interface for special functions) | 30 |
40 | - | Fuse 40 on fuse holder C -SC40- | 40 A | - | Starter -B- | 15 |
41 | - | Not assigned | - | - | - | |
42 | - | Fuse 41 on fuse holder C -SC42- | 15 A | - | Washer pump -V5- is dropped from May 2009 | 15 |
43 | - | Fuse 43 on fuse holder C -SC43- | 20 A | - | Convenience system central control unit -J393- is dropped from May 2009 | 30 |
43 | - | Fuse 43 on fuse holder C -SC43- | 20 A | - | Onboard supply control unit -J519- applicable from May 2009 | 30 |
44 | - | Fuse 44 on fuse holder C -SC44- | 20 A | - | Trailer detector control unit -J345- | 30 |
45 | - | Fuse 45 on fuse holder C -SC45- | 20 A | - | Trailer detector control unit -J345- | 30 |
46 | - | Fuse 46 on fuse holder C -SC46- | 10 A | - | Trailer socket -U10- | 15 |
47 | - | Fuse 47 on fuse holder C -SC47- | 5 A | - | 18-pin connector -T18a- (VDA interface) | 15 |
47 | - | Fuse 47 on fuse holder C -SC47- | 5 A | - | Aerial amplifier for mobile telephone -R86- applicable from May 2009 | 15 |
48 | - | Not assigned | - | - | - | |
49 | Not assigned | - | - | - |