| A | Battery |
| C | Alternator |
| F | Brake light switch |
| G200 | Lateral acceleration sender |
| G202 | Yaw rate sender |
| G419 | ESP sensor unit |
| J104 | ABS control unit |
| J220 | Motronic control unit |
| J519 | Onboard supply control unit |
| SA1 | Fuse 1 in fuse holder A |
| SB | Fuse holder B |
| SB1 | Fuse 1 on fuse holder B |
| SB2 | Fuse 2 on fuse holder B |
| SB4 | Fuse 4 on fuse holder B |
| SB16 | Fuse 16 on fuse holder B |
| SC | Fuse holder C |
| SC2 | Fuse 2 on fuse holder C |
| SC4 | Fuse 4 on fuse holder C |
| T4y | 4-pin connector |
| T40 | 40-pin connector |
| T47 | 47-pin connector |
| T94 | 94-pin connector |
| 1 | Earth strap, battery - body |
| 12 | Earth point, on left in engine compartment |
| 507 | Threaded connection (30), on battery fuse holder |
| 638 | Earth point, on right A-pillar |
| 652 | Earth point, engine and gearbox earth |
| A2 | Positive connection (15), in dash panel wiring harness |
| A20 | Positive connection (15a), in dash panel wiring harness |
| A199 | Positive connection 4 (15a) in dash panel wiring harness |
| B131 | Connection (54), in interior wiring harness |
| * | E-box high |
| *2 | E-box low |
| *3 | From December 2005 |
| *4 | Up to December 2005 |
| G44 | Rear right speed sensor |
| G45 | Front right speed sensor |
| G46 | Rear left speed sensor |
| G47 | Front left speed sensor |
| J104 | ABS control unit |
| N133 | Rear right ABS inlet valve |
| N134 | Rear left ABS inlet valve |
| N225 | Vehicle stabilization program switch valve 1 |
| N226 | Vehicle stabilization program switch valve 2 |
| T47 | 47-pin connector |
| D146 | Connection (rear left speed sensor +), in engine compartment wiring harness |
| D147 | Connection (rear left speed sensor -), in engine compartment wiring harness |
| D148 | Connection (rear right speed sensor +), in engine compartment wiring harness |
| D149 | Connection (rear right speed sensor -), in engine compartment wiring harness |
| D184 | Connection (front left speed sensor +), in engine compartment wiring harness |
| D185 | Connection (front left speed sensor -), in engine compartment wiring harness |
| E256 | TCS and ESP button |
| G201 | Brake pressure sender 1 |
| J104 | ABS control unit |
| K216 | ESP and TCS warning lamp 2 |
| L71 | Traction control switch illumination bulb |
| N99 | Front right ABS inlet valve |
| N100 | Front right ABS outlet valve |
| N101 | Front left ABS inlet valve |
| N102 | Front left ABS outlet valve |
| N135 | Rear right ABS outlet valve |
| N136 | Rear left ABS outlet valve |
| N227 | Vehicle stabilization program high-pressure valve 1 |
| N228 | Vehicle stabilization program high-pressure valve 2 |
| T6ad | 6-pin connector |
| T47 | 47-pin connector |
| V64 | ABS hydraulic pump |
| 43 | Earth point, lower part of right A-pillar |
| 372 | Earth connection 7, in main wiring harness |
| 374 | Earth connection 9, in main wiring harness |
| 382 | Earth connection 17, in main wiring harness |
| B383 | Connection 1 (powertrain CAN bus, high), in main wiring harness |
| B390 | Connection 1 (powertrain CAN bus, low), in main wiring harness |
| G85 | Steering angle sender |
| J519 | Onboard supply control unit |
| J527 | Steering column electronics control unit |
| T20d | 20-pin connector |
| B238 | Positive connection 2 (58b), in interior wiring harness |
| B383 | Connection 1 (powertrain CAN bus, high), in main wiring harness |
| B390 | Connection 1 (powertrain CAN bus, low), 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 |
| F9 | Handbrake warning switch |
| F34 | Brake fluid level warning contact |
| G34 | Front left brake pad wear sender |
| H3 | Buzzer and gong |
| J285 | Control unit in dash panel insert |
| J533 | Data bus diagnostic interface |
| K47 | ABS warning lamp |
| K118 | Brake system warning lamp |
| K155 | ESP and TCS warning lamp |
| T2v | 2-pin connector |
| T2w | 2-pin connector |
| T2y | 2-pin connector |
| T20 | 20-pin connector |
| T36 | 36-pin connector |
| 376 | Earth connection 11, in main wiring harness |
| 381 | Earth connection 16, in main wiring harness |
| 655 | Earth point, on left headlight |
| B379 | Connection 1 (brake pad wear indicator), in main wiring harness |
| B380 | Connection 2 (brake pad wear indicator), in main wiring harness |
| B383 | Connection 1 (powertrain CAN bus, high), in main wiring harness |
| B390 | Connection 1 (powertrain CAN bus, low), 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 |
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