| D | Ignition/starter switch |
| J217 | Automatic gearbox control unit |
| J220 | Motronic control unit |
| J248 | Diesel direct injection system control unit |
| J453 | Multi-function steering wheel control unit |
| S5 | Fuse in fuse box |
| S231 | Fuse 31 in fuse box |
| T10m | 10-pin connector, blue, connector point, electronics box, plenum chamber |
| T10o | 10-pin connector, brown, connector point, electronics box, plenum chamber |
| T20d | 20-pin connector, black, on automatic gearbox control unit |
| A2 | Positive (+) connection (15), in dash panel wiring harness |
| A38 | Positive (+) connection 2 (15a), in dash panel wiring harness |
| D100 | Positive (+) connection 2 (15), in engine compartment wiring harness |
| D159 | Positive (+) connection (high bus), in engine compartment wiring harness |
| D160 | Positive (+) connection (low bus), in engine compartment wiring harness |
| • | CAN bus (data wire) |
| * | 2.4 litre engine (AMM, BDV, ASM) |
| ** | 2.0 litre engine (ALT) |
| *** | 1.8 litre engine (AWT) |
| # | 1.9 litre TDI engine (AWX, AVF) |
| ## | 2.5 litre TDI engine (AYM, AKE, BFC, BDG, BDH, BAU) |
| ### | 3.0 litre engine (ASN, BBJ) |
| ♦ | Tiptronic steering wheel |
| ♦♦ | Multi-function steering wheel |
| D | Ignition/starter switch |
| J217 | Automatic gearbox control unit |
| J226 | Starter inhibitor and reversing light relay |
| J285 | Control unit with display in dash panel insert |
| M16 | Reversing light bulb, left |
| M17 | Reversing light bulb, right |
| T9 | 9-pin connector, brown, at starter inhibitor relay |
| T10f | 10-pin connector, brown, connector point, A pillar, left |
| T10m | 10-pin connector, blue, connector point, electronics box, plenum chamber |
| T10p | 10-pin connector, black, connector point, electronics box, plenum chamber |
| T16a | 16-pin connector, diagnosis connection |
| T20d | 20-pin connector, black, on automatic gearbox control unit |
| T32 | 32-pin connector, blue, on dash panel insert |
| 12 | Earth point in engine compartment, left |
| 85 | Earth connection 1, in engine compartment wiring harness |
| A41 | Positive (+) connection (50), in dash panel wiring harness |
| A76 | Connection (diagnosis wire K), in dash panel wiring harness |
| A87 | Connection (RF (reversing light)), in dash panel wiring harness |
| * | 1.9 litre and 2.5 litre diesel engines |
| ** | 2.0 litre, 2.4 litre and 3.0 litre petrol engines |
| *** | 1.8 litre petrol engine |
| B | Starter |
| E1 | Lighting switch |
| F189 | Tiptronic switch |
| J285 | Control unit with display in dash panel insert |
| N110 | Selector lever lock solenoid |
| S3 | Fuse in fuse box |
| T1h | Single connector, black, in engine compartment, right |
| T2am | 2-pin connector, black, on selector lever console |
| T10o | 10-pin connector, brown, connector point, electronics box, plenum chamber |
| T10am | 10-pin connector, on selector lever console |
| T32 | 32-pin connector, blue, on dash panel insert |
| 213 | Earth connection -4-, in dash panel wiring harness |
| A8 | Positive (+) connection (58d), in dash panel wiring harness (display illumination) |
| A18 | Connection (54), in dash panel wiring harness |
| A20 | Connection (15a), in dash panel wiring harness |
| A53 | Positive (+) connection (58), in dash panel wiring harness |
| E221 | Operating unit in steering wheel |
| F | Brake light switch |
| F47 | Cruise control system brake pedal switch (diesel direct injection system) |
| J285 | Control unit with display in dash panel insert |
| S13 | Fuse in fuse box |
| T5h | 5-pin connector, black, in steering wheel |
| T32 | 32-pin connector, blue, on dash panel insert |
| 135 | Earth connection -2-, in dash panel wiring harness |
| 199 | Earth connection -3-, in dash panel wiring harness |
| A19 | Connection (58s), in dash panel wiring harness (switch illumination) |
| A52 | Positive (+) connection 2 (30), in dash panel wiring harness |
| * | Tiptronic steering wheel |
| ** | Both possible |
| J64 | Ignition cut-off delay relay |
| J220 | Motronic control unit |
| J271 | Motronic current supply relay |
| J322 | Diesel direct injection system relay |
| S199 | Fuse -1- (15) |
| T10o | 10-pin connector, brown, connector point, electronics box, plenum chamber |
| T10p | 10-pin connector, black, connector point, electronics box, plenum chamber |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| D50 | Positive (+) connection (30), in engine compartment wiring harness |
| D75 | Positive (+) connection -2- (30), in engine compartment wiring harness |
| D83 | Connection (87), in engine compartment wiring harness |
| D173 | Connection (87), in engine compartment wiring harness |
| U5 | Connection -2- (15), in automatic gearbox wiring harness |
| * | 2.4 litre engines - AMM, BDV, ASM |
| ** | 2.0 litre engines - ALT |
| *** | 1.8 litre engines - AWT |
| # | 1.9 litre TDI engines - AWX, AVF |
| ## | 2.5 litre TDI engines - AYM, AKE, BFC, BDG, BDH, BAU |
| ### | 3.0 litre engines - ASN, BBJ |
