Running gearElectric/Electronic components and fitting locations
| Electric/electronic components and fitting locations |

| 1 - | Servotronic warning light -K92- |
|
q
| Fitting location: in the dash panel insert |
| Servotronic warning light |
| t
| lights up until the engine starts |
| t
| if it does not go out, faults may have been stored |
| 2 - | Dash panel insert up to model year 2004 |
| 3 - | Dash panel insert as of model year 2005 |
| 4 - | Diagnostic connection |
|
q
| Fitting location: in the storage compartment on the driver's side |
| 5 - | The power-steering sensor -G250- (KOYO) |
|
q
| Fitting location: in the valve dome of the power-steering gear |
| t
| Determining the steering-wheel angle and calculating the steering angle speed |
| t
| if the sensor fails the power steering switches to programmed emergency operation, the steering function is guaranteed, but the steering effort becomes greater |
| t
| Malfunctions of the sensor are stored in the power steering control unit -J500- |
| 6 - | Inspecting the power-assisted steering sensor -G250- (TRW) |
|
q
| with fixed connecting line |
|
q
| Fitting location: in the valve dome of the power-steering gear |
| t
| Determining the steering-wheel angle and calculating the steering angle speed |
| t
| if the sensor fails the power steering switches to programmed emergency operation, the steering function is guaranteed, but the steering effort becomes greater |
| t
| Malfunctions of the sensor are stored in the power steering control unit -J500- |
| 7 - | Inspecting the power-assisted steering sensor -G250- (TRW) |
|
q
| Fitting location: in the valve dome of the power-steering gear |
| t
| Determining the steering-wheel angle and calculating the steering angle speed |
| t
| if the sensor fails the power steering switches to programmed emergency operation, the steering function is guaranteed, but the steering effort becomes greater |
| t
| Malfunctions of the sensor are stored in the power steering control unit -J500- |
|
q
| for power-steering sensor -G250- - Pos. 7 |
| 9 - | Power-assisted steering control unit -J500- |
|
q
| Fitting location: integrated in the engine pump aggregate - Pos. 10 |
| t
| To convert the signals for driving the gear pump in function of the steering angle speed and the vehicle speed. |
| t
| Re-engaging protection after faults |
| t
| Temperature protection for power steering |
| t
| detects faults during operation and stores them in a permanent memory |
|
q
| Power steering control unit -J500- cannot be replaced individually; replace the engine pump aggregate → Chapter |
| 10 - | Engine pump aggregate (TRW) |
| 11 - | Power-assisted steering control unit -J500- |
|
q
| Fitting location: integrated in the engine pump aggregate - Pos. 12 |
| t
| To convert the signals for driving the gear pump in function of the steering angle speed and the vehicle speed. |
| t
| Re-engaging protection after faults |
| t
| Temperature protection for power steering |
| t
| detects faults during operation and stores them in a permanent memory |
|
q
| Power steering control unit -J500- cannot be replaced individually; replace the engine pump aggregate → Chapter |
| 12 - | Engine pump aggregate (KOYO) |
01 Steering & suspension