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Key to diagram 19
| K37 | central locking control unit |
| K46 | turn signal relay |
| M18 | electric motor for central locking on the driver's door |
| M19 | central locking motor on the rear left side door |
| M20 | central locking motor on the rear right side door |
| M32 | electric motor for central locking on the front passenger door |
| M37 | electric motor for central locking on the boot lid/tailgate |
| M41 | electric motor for central locking on fuel filler flap |
| S41 | central lock switch on the driver's door |
| X1 | body wiring harness plug on instrument panel |
| X11 | body wiring harness plug on driver's door |
| X12 | body wiring harness plug on front passenger door |
| X13 | body wiring harness plug on rear left door |
| X14 | body wiring harness plug |
| on the rear right door | |
| X22 | body wiring harness plug on trunk lid |
| X23 | body wiring harness plug on tailgate |
| X29 | license plate lights |
| X61 | body wiring harness plug, alarm control unit and central lock |
| X62 | body wiring harness plug, alarm control unit and central lock |
| 4 | ground point (-) on the front pillar on the left |
| 5 | ground point (-) on the front pillar on the right |
| 10A | 10 Amps |
| 20A | 20 Amps |
| 30 | permanently energized terminal |
| CSR | on-board network relay |
| D!AG | diagnostic connector |
| F12 | fuse F12 |
| F13 | fuse F13 |
| F20 | fuse F20 |
| FH | window lifter |
| HRL | trunk light bulb |
| HWS | hazard warning light switch |
| IRL | interior lighting |
| KW | cars with a "station wagon" body |
| MEM | memorizing the position of rear view mirrors and seats |
| NB | "hatchback" cars |
| SD | luke |
| TKS | door contact switch |
| TLR | central locking of the trunk lid |
| W | terminal W |

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