| G85 | Steering angle sender |
| J104 | ABS with EDL control unit |
| J218 | Combi-processor in dash panel insert |
| J220 | Motronic control unit |
| J248 | Diesel direct injection system control unit |
| T15u | 15-pin connector, red, connector point, electronics box, plenum chamber |
| T17f | 17-pin connector, black, in 8-point relay carrier, behind driver's storage compartment |
| T32a | 32-pin connector, green, on dash panel insert |
| A121 | Connection (high bus), in dash panel wiring harness |
| * | Models with ABS |
| ** | Models with ABS and electronic stability program (ESP) |
| # | Models with petrol engines |
| ## | Models with diesel engines |
| J197 | Adaptive suspension control unit |
| J217 | Automatic gearbox control unit |
| J554 | Low range gearing control unit |
| T15r | 15-pin connector, blue, connector point, A pillar, right |
| T17g | 17-pin connector, grey, in 8-point relay carrier, behind driver's storage compartment |
| A121 | Connection (high bus), in dash panel wiring harness |
| A122 | Connection (low bus), in dash panel wiring harness |
| * | Models with automatic gearbox 01N |
| ** | Models with automatic gearbox 01V / 01L |
| *** | Applies to allroad models only |
| G85 | Steering angle sender |
| J104 | ABS with EDL control unit |
| J218 | Combi-processor in dash panel insert |
| J220 | Motronic control unit |
| J248 | Diesel direct injection system control unit |
| T15u | 15-pin connector, red, connector point, electronics box, plenum chamber |
| T17f | 17-pin connector, black, in 8-point relay carrier, behind driver's storage compartment |
| T32a | 32-pin connector, green, on dash panel insert |
| A122 | Connection (low bus), in dash panel wiring harness |
| * | Models with ABS |
| ** | Models with ABS and electronic stability program (ESP) |
| # | Models with petrol engines |
| ## | Models with diesel engines |
| J218 | Combi-processor in dash panel insert |
| J401 | Navigation system with CD drive control unit |
| J453 | Multi-function steering wheel control unit |
| J507 | Control unit for voice control |
| J526 | Telephone/telematics control unit |
| R | Radio |
| R94 | Navigation interface |
| T4au | 4-pin connector, black, connection for card reader |
| T6x | 6-pin connector, green, radio connector I - 2 |
| T10x | 10-pin connector, green, connector point, A pillar, right |
| T12f | 12-pin connector, at navigation interface |
| T15s | 15-pin connector, blue, connector point, A pillar, left |
| T15w | 15-pin connector, green, connector point, A pillar, right |
| T20b | 20-pin connector, black, on navigation control unit |
| T26c | 26-pin connector, on control unit for voice control |
| T32c | 32-pin connector, grey, on dash panel insert |
| T46 | 46-pin connector, connector 1, telematics |
| A149 | Connection (navigation CAN bus, low), in dash panel wiring harness |
| * | Only models with on-board computer |
| J218 | Combi-processor in dash panel insert |
| J401 | Navigation system with CD drive control unit |
| J453 | Multi-function steering wheel control unit |
| J507 | Control unit for voice control |
| J526 | Telephone/telematics control unit |
| R | Radio |
| R94 | Navigation interface |
| T4au | 4-pin connector, black, connection for card reader |
| T6x | 6-pin connector, green, radio connector I - 2 |
| T10x | 10-pin connector, green, connector point, A pillar, right |
| T12f | 12-pin connector, at navigation interface |
| T15s | 15-pin connector, blue, connector point, A pillar, left |
| T15w | 15-pin connector, green, connector point, A pillar, right |
| T20b | 20-pin connector, black, on navigation control unit |
| T26c | 26-pin connector, on control unit for voice control |
| T32c | 32-pin connector, grey, on dash panel insert |
| T46 | 46-pin connector, connector 1, telematics |
| A148 | Connection (navigation CAN bus, high), in dash panel wiring harness |
| * | Only models with on-board computer |
| J218 | Combi-processor in dash panel insert |
| J446 | Parking aid control unit |
| J502 | Tyre pressure monitor control unit |
| R | Radio |
| T6x | 6-pin connector, green, radio connector I - 2 |
| T6at | 6-pin connector, red, connector point, A pillar, left |
| T10x | 10-pin connector, green, connector point, A pillar, right |
| T15q | 15-pin connector, white, connector point, A pillar, right |
| T23 | 23-pin connector, black, on parking aid control unit |
| T32a | 32-pin connector, green, on dash panel insert |
| A146 | Connection (convenience CAN bus, high), in dash panel wiring harness |
| A147 | Connection (convenience CAN bus, low), in dash panel wiring harness |
| * | Models without auto-check system |