| A | Battery |
| E20 | Switch and instrument illumination regulator |
| E256 | TCS and ESP button |
| J104 | ABS control unit with EDL/TCS/ESP, on left in engine compartment |
| L71 | Traction control switch illumination |
| SB8 | Fuse 8 in relay plate fuse holder |
| S178 | Fuse 6 (30), on battery fuse holder |
| S177 | Fuse 2 (30), on battery fuse holder |
| T3 | 3-pin connector |
| T6 | 6-pin connector |
| T10a | 10-pin connector, green, near relay station |
| T10h | 10-pin connector, orange, near relay station |
| T47 | 47-pin connector |
| 12 | Earth point, on left in engine compartment |
| 503 | Screw connection (75x), on relay plate |
| A3 | Positive connection (58), in dash panel wiring harness |
| A38 | Positive connection 2 (15a), in dash panel wiring harness |
| A132 | Connection (TCS/ESP), in dash panel wiring harness |
| B235 | Positive connection 4 (15a), in interior wiring harness |
| G85 | Steering angle sender, on steering column |
| J... | Engine control units |
| J104 | ABS control unit with EDL/TCS/ESP, on left in engine compartment |
| J217 | Automatic gearbox control unit, centre in plenum chamber |
| N133 | Rear right ABS inlet valve |
| N134 | Rear left ABS inlet valve |
| N135 | Rear right ABS outlet valve |
| N136 | Rear left ABS outlet valve |
| T6a | 6-pin connector |
| T10h | 10-pin connector, orange, near relay station |
| T10s | 10-pin connector, light green, near relay station |
| T47 | 47-pin connector |
| 42 | Earth point, next to steering column |
| 135 | Earth connection 2, in dash panel wiring harness |
| D159 | Connection (high bus), in engine compartment wiring harness |
| D160 | Connection (low bus), in engine compartment wiring harness |
| * | Only models with automatic gearbox |
| G200 | Lateral acceleration sender, next to steering column |
| G201 | Brake pressure sender 1, on brake master cylinder |
| G202 | Yaw sender, next to steering column |
| G214 | Brake pressure sender 2, on brake master cylinder |
| J104 | ABS control unit with EDL/TCS/ESP, on left in engine compartment |
| N225 | Vehicle stabilisation program switch valve 1 |
| N226 | Vehicle stabilisation program switch valve 2 |
| T10h | 10-pin connector, orange, near relay station |
| T14b | 14-pin connector, on left in engine compartment |
| T47 | 47-pin connector |
| V64 | ABS hydraulic pump |
| F83 | ESP brake detection switch |
| J104 | ABS control unit with EDL/TCS/ESP, on left in engine compartment |
| J503 | Control unit with display for radio and navigation system |
| N247 | Brake pressure solenoid valve, in brake servo |
| T5 | 5-pin connector, in rear of engine compartment |
| T10 | 10-pin connector, white, near relay station |
| T10s | 10-pin connector, light green, near relay station |
| T14b | 14-pin connector, on left in engine compartment |
| T26 | 26-pin connector |
| T47 | 47-pin connector |
| * | Only models with navigation |
| F | Brake light switch |
| F9 | Handbrake warning switch |
| F34 | Brake fluid level warning contact |
| J104 | ABS control unit with EDL/TCS/ESP, on left in engine compartment |
| J508 | Brake light suppression relay, on additional relay carrier above relay plate |
| M21 | Left brake and tail light bulb |
| T10a | 10-pin connector, green, near relay station |
| T10b | 10-pin connector, black, near relay station |
| T10c | 10-pin connector, blue, near relay station |
| T10e | 10-pin connector, light pink, near relay station |
| T16 | 16-pin connector, self-diagnosis connection |
| T47 | 47-pin connector |
| 179 | Earth connection, in left headlight wiring harness |
| A76 | Connection (K-diagnosis wire), in dash panel wiring harness |
| A89 | Connection (54), in dash panel wiring harness |
| B131 | Connection (54), in interior wiring harness |
| W1 | Positive connection (54), in interior light wiring harness |
