| B | Starter |
| D | Ignition/starter switch |
| J17 | Fuel pump relay |
| J226 | Starter inhibitor and reversing light relay, on the 13 position additional relay carrier |
| M16 | Left reversing light bulb |
| M17 | Right reversing light bulb |
| S15 | Fuse 15 in fuse holder |
| T5h | 5-pin connector, lower left A-pillar, entwined in wiring harness |
| T6 | 6-pin connector, brown, in connector protective housing, on left in plenum chamber |
| T10 | 10-pin connector, orange, in connector protective housing, on left in plenum chamber |
| T10g | 10-pin connector, grey, in connector protective housing, on left in plenum chamber |
| 114 | Earth connection, in automatic gearbox wiring harness |
| 501 | Screw connection 2 (30), on relay plate |
| A32 | Positive connection (30), in dash panel wiring harness |
| A41 | Positive connection (50), in dash panel wiring harness, (models with petrol engine only) |
| A87 | Connection (RL), in dash panel wiring harness |
| A98 | Positive connection 4 (30), in dash panel wiring harness |
| B182 | Connection (RL), in interior wiring harness |
| -•-•- | up to April 2001 |
| F125 | Multifunction switch |
| J217 | Automatic gearbox control unit, in centre plenum chamber |
| J285 | Control unit in dash panel insert |
| T8 | 8-pin connector |
| T10g | 10-pin connector, grey, in connector protective housing, on left in plenum chamber |
| T16 | 16-pin connector, in centre dash panel, self-diagnosis connection |
| T32 | 32-pin connector, blue |
| T68a | 68-pin connector |
| A52 | Positive connection (30a), in dash panel wiring harness |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
| F270 | Brake pressure switch |
| G93 | Gearbox oil temperature sender |
| J217 | Automatic gearbox control unit, in centre plenum chamber |
| J220 | Motronic control unit |
| J248 | Diesel direct injection system control unit |
| J285 | Control unit in dash panel insert |
| N88 | Solenoid valve 1 |
| N89 | Solenoid valve 2 |
| N90 | Solenoid valve 3 |
| N91 | Solenoid valve 4 |
| N92 | Solenoid valve 5 |
| N93 | Solenoid valve 6 |
| N281 | Solenoid valve 8 |
| N282 | Solenoid valve 9 |
| N283 | Solenoid valve 10 |
| T10h | 10-pin connector, blue, in connector protective housing, on left in plenum chamber |
| T20b | 20-pin connector, on gearbox |
| T32 | 32-pin connector, blue |
| T68a | 68-pin connector |
| T94 | 94-pin connector |
| T121 | 121-pin connector |
| 114 | Earth connection, in automatic gearbox wiring harness |
| 608 | Earth point, in centre of plenum chamber |
| E20 | Illumination regulators, switches, instruments |
| F | Brake light switch |
| F189 | Tiptronic switch |
| G68 | Vehicle speed sender |
| G182 | Gearbox input speed sender |
| G265 | Intermediate shaft speed sender |
| J217 | Automatic gearbox control unit, in centre plenum chamber |
| K142 | Selector lever position P/N warning lamp |
| L101 | Selector lever display illumination bulb |
| T6c | 6-pin connector |
| T8a | 8-pin connector |
| T10e | 10-pin connector, black, in connector protective housing, on left in plenum chamber |
| T10g | 10-pin connector, grey, in connector protective housing, on left in plenum chamber |
| T20b | 20-pin connector, on gearbox |
| T68a | 68-pin connector |
| 81 | Earth connection 1, in dash panel wiring harness |
| A4 | Positive connection (58b), in dash panel wiring harness |
| A18 | Connection (54), in dash panel wiring harness |
| J104 | ABS/ABS control unit with EDL |
| J217 | Automatic gearbox control unit, in centre plenum chamber |
| J220 | Motronic control unit |
| J248 | Diesel direct injection system control unit |
| J533 | Data bus diagnostic interface, in dash panel insert |
| T10w | 10-pin connector, white, in connector protective housing, on left in plenum chamber |
| T25 | 25-pin connector, on ABS/ABS control unit with EDL |
| T32a | 32-pin connector, green, on dash panel insert |
| T47 | 47-pin connector, on ABS with EDL control unit /TCS/ESP (up to July 2000) |
| T47a | 47-pin connector, on ABS/ ABS with EDL control unit /TCS/ESP (up to August 2000) |
| T68a | 68-pin connector |
| T94 | 94-pin connector |
| T121 | 121-pin connector |
| 42 | Earth point, next to steering column |
| 49 | Earth point, on top end of steering column |
| 81 | Earth connection 1, in dash panel wiring harness |
| 135 | Earth connection 2, in dash panel wiring harness |
| A121 | Connection (high bus), in dash panel wiring harness |
| A122 | Connection (low bus), in dash panel wiring harness |
| D | Ignition/starter switch |
| J217 | Automatic gearbox control unit, in centre plenum chamber |
| J285 | Control unit in dash panel insert |
| J542 | Brake servo control unit |
| N110 | Selector lever lock solenoid |
| S7 | Fuse 7 in fuse holder |
| S11 | Fuse 11 in fuse holder |
| S231 | Fuse 31 in fuse holder |
| T6j | 6-pin connector, in left engine compartment |
| T6k | 6-pin connector |
| T10g | 10-pin connector, grey, in connector protective housing, on left in plenum chamber |
| T32 | 32-pin connector, blue |
| T68a | 68-pin connector |
| A2 | Positive connection (15), in dash panel wiring harness |
| B157 | Positive connection 3 (15a), in interior wiring harness |
| B163 | Positive connection 1 (15), in interior wiring harness |
| B165 | Positive connection 2 (15), in interior wiring harness |
| U8 | Connection (15a), in automatic gearbox wiring harness |
| * | only models with brake servo control unit from May 2002 |
| ** | only models without brake servo control unit |
| --- | only models with brake servo control unit up to April 2002 |