| Number | X-pin, colour | Description |
|---|---|---|
| X11175 | 26-pin, black | Plug connector Instrument cluster |
| X11176 | 26-pin, natural | Plug connector Instrument cluster |
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | M | Control unit ground | Ground connector |
| 2 | E | Battery charge indicator lamp signal (terminal 61) | Alternator |
| 3 | E | Oil pressure indicator lamp | Oil pressure switch (M54), Digital diesel electronics control unit (M57) |
| 4 | E | Reversing light signal | Reversing light switch (manual transmission) |
| 5 | E | Start position, terminal 30h | Electronic immobilizer control unit (EWS) |
| 6 | Not used | ||
| 7 | Not used | ||
| 8 | Not used | ||
| 9 | Not used | ||
| 10 | Not used | ||
| 11 | E | Brake pad wear indicator | Brake pad sensor |
| 12 | E | Coolant temperature | Dual coolant temperature sensor |
| 13 | E | Sensor ground | Dual coolant temperature sensor |
| 14 | Not used | ||
| 15 | Not used | ||
| 16 | E | ABS warning lamp | ABS/DSC control unit |
| 17 | Not used | ||
| 18 | Not used | ||
| 19 | Not used | ||
| 20 | E | Terminal 30 | Fuse F43 |
| 21 | E | Terminal 15 | Fuse F1 |
| 22 | E | Terminal R | Fuse F45 |
| 23 | E | Night light signal | Light module |
| 24 | E | Signal Outside temperature | Temperature sensor |
| 25 | A | Sensor ground | Temperature sensor |
| 26 | Not used | ||
| Pin | Type | Description / Signal type | Connection / Measuring notes |
|---|---|---|---|
| 1 | E | BC remote control | Turn indicator/low beam selector |
| 2 | E | Tank content I | Electrical fuel pump (EKP I) |
| 3 | A | Sensor ground I | Electrical fuel pump (EKP I) |
| 4 | Not used | ||
| 5 | Not used | ||
| 6 | E | Tank content II | Fuel supply sensor II |
| 7 | A | Sensor ground | Fuel supply sensor II |
| 8 | E | Airbag indicator lamp | Airbag diagnostic module |
| 9 | Not used | ||
| 10 | Not used | ||
| 11 | Not used | ||
| 12 | E/A | Diagnostic link TXD | Diagnostic connector |
| 13 | Not used | ||
| 14 | E | Speedometer (A) output signal | X322 Connector |
| 15 | Not used | ||
| 16 | A | Activation, tone 3 acoustic generator | Gong |
| 17 | Not used | ||
| 18 | Not used | ||
| 19 | E | Rear left speed signal | ABS/DSC control unit |
| 20 | E/A | I/K-bus signal link | K-bus connector |
| 21 | Not used | ||
| 22 | E | Hand brake indicator lamp | Parking brake switch |
| 23 | Not used | ||
| 24 | E/A | CAN-bus high | CAN HIGH connector |
| 25 | Not used | ||
| 26 | E/A | CAN-bus low | CAN LOW connector |