184000577 - S37 ELECTRIC STEERING NOISY WHEN USED WITH VEHICLE STATIONARY
The cusomter complains of noise from the electric steering with the vehicle stationary, with the ignition off and/or whilst driving| Results of the tests | ||||
| 1 | CHECK ON TYPE OF NOISE | All OK | Problems met | Operation |
|---|---|---|---|---|
| With the system not activated (ignition OFF), check the type of noise reported | Continue to Step 2 | Noise similar to rubbing plastic. | Continue to Step 5 | |
| 2 | CHECK ON TYPE OF NOISE | All OK | Problems met | Operation |
| With the system activated (ignition ON), check the type of noise reported | Continue to Step 8 | Electric type noise (buzzing) | Continue to Step 4 | |
| Noise similar to a click | Continue to Step 6 | |||
| Noise similar to reverse rotation of the steering wheel. | Continue to Step 7 | |||
| Noise similar to high pitched creaking. | Continue to Step 3 | |||
| Noise similar to a series of bangs during rotation. | Replace the EPS system Op. 4110D20 | |||
| 3 | MECHANICAL CHECK | All OK | Problems met | Operation |
| Check the condition of the EPS electric motor rear bearing. | Continue to Step 8 | The bearing is intact. | Replace the EPS system Op. 4110D20 | |
| The bearing is damaged | Replace the system electric motor Op. 4110D30 | |||
| 4 | CHECK ON INTENSITY OF NOISE | All OK | Problems met | Operation |
| Check the intensity of the noise (slight noise that cannot be heard on the passenger side is normal for an EPS system). | Continue to Step 5 | The noise is loud | Replace EPS system electric motor Op. 4110D20 | |
| 5 | INTERFERENCE CHECK | All OK | Problems met | Operation |
With the system not activated (ignition OFF), check:
| Continue to Step 8 | The steering wheel is in contact with the upper and/or lower trim. | Reposition the steering column trim. | |
| Noise noticed from the steering wheel and/or one of its components | Restore the correct operation of the defective component. | |||
| The steering column and/on steering column switch unit is in contact with the upper and/or lower trim | Reposition the steering column switch unit and/or steering wheel cover | |||
| The fork is rubbing on the floor and/or carpet | Reposition the vehicle floor covering | |||
| Noise noticed from inside the electric steering | Replace the EPS system Op. 4110D20 | |||
| 6 | FORK TIGHTENING CHECK | All OK | Problems met | Operation |
| Check that the lower fork nut is correctly tightened on the steering box pinion | Continue to Step 8 | Tightening not correct | Restore the correct tightening | |
| 7 | STEERING WHEEL OSCILLATION CHECK | All OK | Problems met | Operation |
| Check the type of steering wheel oscillation | Continue to Step 8 | The fault occurs when the steering wheel oscillation is slight | Replace the EPS system insulator (flexible coupling) | |
| The fault occurs when the steering wheel movements are sudden, similar to emergency manoeuvres | Replace the EPS system intermediate shaft | |||
| 8 | Continue as instructed by the tester | All OK | Problems met | Operation |
| Check that the fault is no longer present | End of diagnosis | Fault persists | Replace the EPS system Op. 4110D20 | |