| J369 | Wiper motor switch-over relay 2 |
| J519 | Onboard supply control unit |
| J681 | Terminal 15 voltage supply relay 2 |
| J682 | Terminal 50 voltage supply relay |
| SB | Fuse holder B |
| SB10 | Fuse 10 on fuse holder B |
| SC | Fuse holder C |
| SC14 | Fuse 14 on fuse holder C |
| SB20 | Fuse 20 on fuse holder B |
| SB25 | Fuse 25 on fuse holder B |
| SB30 | Fuse 30 on fuse holder B |
| T9c | 9-pin connector |
| T9f | 9-pin connector |
| T52b | 52-pin connector |
| 108 | Earth connection 2, in front left wiring harness |
| 671 | Earth point 1, on front of left longitudinal member |
| B163 | Positive connection 1 (15), in interior wiring harness |
| B316 | Positive connection 2 (30a) in main wiring harness |
| * | Cross section depends on equipment |
| J519 | Onboard supply control unit |
| SC | Fuse holder C |
| SC3 | Fuse 3 on fuse holder C |
| SC13 | Fuse 13 on fuse holder C |
| SC15 | Fuse 15 on fuse holder C |
| SC21 | Fuse 21 on fuse holder C |
| SC23 | Fuse 23 on fuse holder C |
| SC35 | Fuse 35 on fuse holder C |
| SC36 | Fuse 36 on fuse holder C |
| T52b | 52-pin connector |
| A217 | Positive connection 8 (15a) in dash panel wiring harness |
| B169 | Positive connection 1 (30), in interior wiring harness |
| B170 | Positive connection 2 (30), in interior wiring harness |
| B171 | Positive connection 3 (30), in interior wiring harness |
| B172 | Positive connection 4 (30), in interior wiring harness |
| B315 | Positive connection 1 (30a) in main wiring harness |
| * | Up to February 2013 |
| J245 | Sliding sunroof adjustment control unit |
| J519 | Onboard supply control unit |
| J680 | Terminal 75 voltage supply relay 1 |
| L23 | Right fog light bulb |
| L149 | Right cornering light bulb |
| SC | Fuse holder C |
| SC30 | Fuse 30 on fuse holder C |
| SC44 | Fuse 44 on fuse holder C |
| SC48 | Fuse 48 on fuse holder C |
| SC51 | Fuse 51 on fuse holder C |
| T2dh | 2-pin connector |
| T9x | 9-pin connector |
| T10e | 10-pin connector |
| T52b | 52-pin connector |
| T52c | 52-pin connector |
| 121 | Earth connection 2, in front right wiring harness |
| B219 | Positive connection 4 (30a), in interior wiring harness |
| B554 | Connection (fog light), in main wiring harness |
| * | According to equipment |
| *2 | Wiring colour depends on equipment |
| J519 | Onboard supply control unit |
| L22 | Left fog light bulb |
| L148 | Left cornering light bulb |
| L174 | Left daytime running light bulb |
| MX1 | Front left headlight |
| M1 | Left side light bulb |
| M5 | Front left turn signal bulb |
| M29 | Left headlight dipped beam bulb |
| M30 | Left headlight main beam bulb |
| T2dg | 2-pin connector |
| T10l | 10-pin connector |
| T52a | 52-pin connector |
| T52c | 52-pin connector |
| V48 | Left headlight range control motor |
| 179 | Earth connection, in left headlight wiring harness |
| 376 | Earth connection 11, in main wiring harness |
| 655 | Earth point, on left headlight |
| B522 | Connection (FL), in main wiring harness |
| * | Up to February 2013 |
| *2 | From February 2013 |
| E20 | Switch and instrument illumination regulator |
| E102 | Headlight range control regulator |
| J519 | Onboard supply control unit |
| L76 | Button illumination bulb |
| L175 | Right daytime running light bulb |
| MX2 | Front right headlight |
| M3 | Right side light bulb |
| M7 | Front right turn signal bulb |
| M31 | Right headlight dipped beam bulb |
| M32 | Right headlight main beam bulb |
| T8e | 8-pin connector |
| T10r | 10-pin connector |
| T52a | 52-pin connector |
| T52b | 52-pin connector |
| T52c | 52-pin connector |
| V49 | Right headlight range control motor |
| B149 | Positive connection 2 (15a), in interior wiring harness |
| B457 | Connection 1 (potentiometer), in main wiring harness |
| * | Up to February 2013 |
| *2 | From February 2013 |
| J519 | Onboard supply control unit |
| L46 | Rear left fog light bulb |
| M2 | Right tail light bulb |
| MX3 | Left tail light |
| M4 | Left tail light bulb |
| MX5 | Left tail light 2 |
| MX6 | Right tail light 2 |
| M6 | Rear left turn signal bulb |
| M9 | Left brake light bulb |
| M16 | Left reversing light bulb |
| M17 | Right reversing light bulb |
| T4a | 4-pin connector |
| T4c | 4-pin connector |
| T4d | 4-pin connector |
| T52a | 52-pin connector |
| T52c | 52-pin connector |
| 86 | Earth connection 1, in rear wiring harness |
| A6 | Positive connection (left turn signal), in dash panel wiring harness |
| A84 | Connection (58L), in dash panel wiring harness |
| A87 | Connection (RL), in dash panel wiring harness |
| * | According to equipment |
| E234 | Rear lid handle release button |
| F5 | Luggage compartment light switch |
| F256 | Rear lid lock unit |
| J519 | Onboard supply control unit |
| T2dx | 2-pin connector |
| T2dy | 2-pin connector |
| T2t | 2-pin connector |
| T4u | 4-pin connector |
| T52a | 52-pin connector |
| T52b | 52-pin connector |
| T52c | 52-pin connector |
| V254 | Rear lid electric opener motor |
| X | Number plate light |
| 86 | Earth connection 1, in rear wiring harness |
| 437 | Earth connection, in number plate wiring harness |
| 662 | Earth point, rear left side panel |
| B128 | Connection (luggage compartment light), in interior wiring harness |
| W41 | Positive connection (58), in number plate lights wiring harness |
| F | Brake light switch |
| J519 | Onboard supply control unit |
| M2 | Right tail light bulb |
| MX4 | Right tail light |
| M8 | Rear right turn signal bulb |
| M10 | Right brake light bulb |
| M25 | Additional brake light bulb |
| T2bv | 2-pin connector |
| T2dn | 2-pin connector |
| T4al | 4-pin connector |
| T4b | 4-pin connector |
| T52a | 52-pin connector |
| T52b | 52-pin connector |
| T52c | 52-pin connector |
| V5 | Washer pump |
| 87 | Earth connection 2, in rear wiring harness |
| 681 | Earth point 1, in rear right side panel |
| 682 | Earth point 2, in rear right side panel |
| A5 | Positive connection (right turn signal), in dash panel wiring harness |
| A85 | Connection (58R), in dash panel wiring harness |
| B131 | Connection (54), in interior wiring harness |
| D196 | Connection 2 (87a) in engine prewiring harness |
| * | Up to June 2013 |
| *2 | From July 2013 |
| F4 | Reversing light switch |
| J386 | Driver door control unit |
| J387 | Front passenger door control unit |
| J519 | Onboard supply control unit |
| L131 | Driver side turn signal repeater bulb |
| L132 | Front passenger side turn signal repeater bulb |
| T2fi | 2-pin connector |
| T2x | 2-pin connector |
| T16a | 16-pin connector |
| T16d | 16-pin connector |
| T20a | 20-pin connector |
| T20b | 20-pin connector |
| T28 | 28-pin connector |
| T28a | 28-pin connector |
| T52a | 52-pin connector |
| T52b | 52-pin connector |
| V155 | Tank filler flap locking motor |
| 107 | Earth connection, in external mirror wiring harness |
| 801 | Earth connection 2, in external mirror wiring harness |
| B182 | Connection (RL), in interior wiring harness |
| EX20 | Right steering column switch |
| E22 | Intermittent wiper switch |
| E38 | Intermittent wiper regulator |
| E44 | Washer pump switch (automatic wash/wipe and headlight washer system) |
| F189 | Tiptronic switch |
| J519 | Onboard supply control unit |
| J527 | Steering column electronics control unit |
| J623 | Engine control unit |
| T10s | 10-pin connector |
| T16l | 16-pin connector |
| T52c | 52-pin connector |
| T94 | 94-pin connector |
| B114 | Connection (inhibitor switch), in interior wiring harness |
| B276 | Positive connection (50), in main wiring harness |
| B441 | Connection (CCS), in main wiring harness |
| * | Cross section depends on equipment |
| *2 | Only models with no start/stop system |
| *3 | Only models with start/stop system |
| D | Ignition/starter switch |
| E2 | Turn signal switch |
| E4 | Headlight dipper and flasher switch |
| EX19 | Left steering column switch |
| EX20 | Right steering column switch |
| E45 | Cruise control system switch |
| E86 | Multifunction display call-up button |
| E109 | Multifunction display memory switch |
| E227 | Cruise control system (CCS) SET button |
| J519 | Onboard supply control unit |
| J527 | Steering column electronics control unit |
| N376 | Ignition key withdrawal lock solenoid |
| T8ap | 8-pin connector |
| * | Only models with dual clutch gearbox 0AM |
| *2 | Only models with cruise control system (CCS) |
| *3 | Only models with no multifunction steering wheel |
| F138 | Airbag coil connector and return ring with slip ring |
| H | Horn plate |
| J234 | Airbag control unit |
| J453 | Multifunction steering wheel control unit |
| J519 | Onboard supply control unit |
| J527 | Steering column electronics control unit |
| T4k | 4-pin connector |
| T12k | 12-pin connector |
| T16l | 16-pin connector |
| T50 | 50-pin connector |
| T52a | 52-pin connector |
| T52b | 52-pin connector |
| T52c | 52-pin connector |
| 367 | Earth connection 2, in main wiring harness |
| 368 | Earth connection 3, in main wiring harness |
| 389 | Earth connection 24, in main wiring harness |
| 602 | Earth point, in front left footwell |
| 605 | Earth point, on top end of steering column |
| B165 | Positive connection 2 (15), in interior wiring harness |
| * | Up to June 2013 |
| *2 | see applicable current flow diagram for multifunction steering wheel |
| *3 | From July 2013 |
| *4 | Only models with multifunction steering wheel |
| H2 | Treble horn |
| H7 | Bass horn |
| J4 | Dual tone horn relay |
| J9 | Heated rear window relay |
| J519 | Onboard supply control unit |
| R178 | Frequency modulation (FM) frequency filter in negative wire |
| R179 | Frequency modulation (FM) frequency filter in positive wire |
| T2di | 2-pin connector |
| T2dj | 2-pin connector |
| T5c | 5-pin connector |
| T5f | 5-pin connector |
| T52b | 52-pin connector |
| Z1 | Heated rear window |
| 13 | Earth point, on right in engine compartment |
| 124 | Earth connection, in right side engine compartment wiring harness |
| 657 | Earth point 1, on left near rear window |
| 681 | Earth point 1, in rear right side panel |
| 682 | Earth point 2, in rear right side panel |
| A198 | Positive connection 6 (30a) in dash panel wiring harness |
| B180 | Connection (heated rear window), in interior wiring harness |
| C13 | Positive connection in dual tone horn wiring harness |
| * | Up to June 2013 |
| *2 | From July 2013 |
| *3 | Cross section depends on equipment |
| *4 | Wiring colour depends on equipment |
| J519 | Onboard supply control unit |
| T2aq | 2-pin connector |
| T6b | 6-pin connector |
| T6d | 6-pin connector |
| T52c | 52-pin connector |
| W1 | Front interior light |
| W3 | Luggage compartment light |
| W39 | Left centre reading light |
| W40 | Right centre reading light |
| Y7 | Automatic anti-dazzle interior mirror |
| 347 | Earth connection, in roof wiring harness |
| B154 | Connection 1 (DCt), in interior wiring harness |
| B250 | Positive connection, in roof wiring harness |
| B552 | Positive connection 2, in roof wiring harness |
| * | Only models with automatic anti-dazzle interior mirror |
| E229 | Hazard warning lights button |
| F147 | Driver vanity mirror contact switch |
| F148 | Front passenger vanity mirror contact switch |
| J519 | Onboard supply control unit |
| K6 | Indicator lamp for hazard warning light |
| T2bi | 2-pin connector |
| T2bj | 2-pin connector |
| T2bk | 2-pin connector |
| T2bl | 2-pin connector |
| T3an | 3-pin connector |
| T6c | 6-pin connector |
| T52b | 52-pin connector |
| T52c | 52-pin connector |
| W11 | Rear left reading light |
| W12 | Rear right reading light |
| W14 | Front passenger side illuminated vanity mirror |
| W20 | Driver side illuminated vanity mirror |
| W43 | Rear interior light |
| 43 | Earth point, lower part of right A-pillar |
| 81 | Earth connection 1, in dash panel wiring harness |
| 366 | Earth connection 1, in main wiring harness |
| B250 | Positive connection, in roof wiring harness |
| * | Wiring colour depends on equipment |
| F1 | Oil pressure switch |
| F22 | Oil pressure switch |
| G3 | Coolant temperature gauge |
| G17 | Ambient temperature sensor |
| G32 | Coolant shortage indicator sender |
| J285 | Control unit in dash panel insert |
| J519 | Onboard supply control unit |
| K | Dash panel insert |
| K19 | Seat belt warning system warning lamp |
| K28 | Coolant temperature and coolant shortage warning lamp |
| K38 | Oil level warning lamp |
| K115 | Immobilizer warning lamp |
| K118 | Brake system warning lamp |
| T1o | Single connector |
| T2cw | 2-pin connector |
| T2dk | 2-pin connector |
| T14 | 14-pin connector |
| T32 | 32-pin connector |
| 269 | Earth connection (sender earth) 1, in dash panel wiring harness |
| * | Only models with 1.4l engine |
| *2 | Only models with 1.8l Total Flex engine |
| J285 | Control unit in dash panel insert |
| J519 | Onboard supply control unit |
| J533 | Data bus diagnostic interface |
| K | Dash panel insert |
| K1 | Main beam warning lamp |
| K83 | Exhaust emissions warning lamp |
| K105 | Reserve fuel warning lamp |
| K166 | Door open warning lamp |
| K170 | Bulb failure warning lamp |
| K171 | Bonnet open warning lamp |
| K201 | Fuel tank flap lock warning lamp |
| K205 | Warning lamp for daytime running lights |
| T20 | 20-pin connector |
| T32 | 32-pin connector |
| 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 |
| * | From July 2013 |
| J104 | ABS control unit |
| J519 | Onboard supply control unit |
| J533 | Data bus diagnostic interface |
| J743 | Mechatronic unit for dual clutch gearbox |
| T16 | 16-pin connector |
| T20 | 20-pin connector |
| T25 | 25-pin connector |
| T47 | 47-pin connector |
| U31 | Diagnostic connection |
| A76 | Connection (K-diagnosis wire), in dash panel wiring harness |
| B383 | Connection 1 (powertrain CAN bus, high), in main wiring harness |
| B390 | Connection 1 (powertrain CAN bus, low), in main wiring harness |
| B713 | Connection 1 (CAN bus diagnosis, high), in main wiring harness |
| B714 | Connection 1 (CAN bus diagnosis, low), in main wiring harness |
| * | From July 2013 |
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