| E221 | Operating unit in steering wheel |
| F189 | Tiptronic switch |
| H | Horn plate |
| H2 | High tone horn |
| H7 | Low tone horn |
| J4 | Dual tone horn relay |
| J217 | Automatic gearbox control unit |
| J218 | Combi-processor in dash panel insert |
| T5d | 5-pin connector, yellow, behind steering column switch trim |
| T5h | 5-pin connector, black, in steering wheel |
| T6i | 6-pin connector, red, connector point, A pillar, right |
| T10b | 10-pin connector, red, connector point, A pillar, left |
| T10am | 10-pin connector, on selector lever console |
| T15r | 15-pin connector, brown, connector point, right A pillar |
| T32 | 32-pin connector, blue, on dash panel insert |
| 135 | Earth connection -2-, in dash panel wiring harness |
| 176 | Earth connection, in right headlight wiring harness |
| 179 | Earth connection, in left headlight wiring harness |
| 199 | Earth connection -3-, in dash panel wiring harness |
| A19 | Connection (58s), in dash panel wiring harness (switch illumination) |
| E112 | Connection (horn-87 h), in dash panel wiring harness |
| U6 | Connection -2-, in automatic gearbox wiring harness |
| U7 | Connection -3-, in automatic gearbox wiring harness |
| * | Both possible |
| E94 | Heated driver's seat adjuster |
| E221 | Operating unit in steering wheel |
| F138 | Airbag coil connector, return spring with slip ring |
| J234 | Airbag control unit |
| N95 | Airbag igniter, driver's side |
| S227 | Fuse in fuse box |
| S240 | Fuse in fuse box |
| T2a | 2-pin connector, yellow, connector point, A pillar, left |
| T2bg | 2-pin connector, black, behind steering column switch trim |
| T5d | 5-pin connector, behind steering column switch trim |
| Z36 | Heated steering wheel |
| 135 | Earth connection -2-, in dash panel wiring harness |
| 199 | Earth connection -3-, in dash panel wiring harness |
| A52 | Positive (+) connection 2 (30), in dash panel wiring harness |
| * | Models with heated steering wheel |
| ** | Both possible |
