2751124 - 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
1CHECK ON TYPE OF NOISEAll OKProblems metOperation
With the system not activated (ignition OFF), check the type of noise reportedContinue to Step 2Noise similar to rubbing plastic.Continue to Step 5
2CHECK ON TYPE OF NOISEAll OKProblems metOperation
With the system activated (ignition ON), check the type of noise reportedContinue to Step 8Electric type noise (buzzing)Continue to Step 4
Noise similar to a clickContinue 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  Continue to Step 3
3MECHANICAL CHECKAll OKProblems metOperation
Check the condition of the EPS electric motor rear bearing.Continue to Step 8The bearing is intact.Replace the EPS system Op.   4110D20 
The bearing is damagedReplace the system electric motor Op. 4110D30
4CHECK ON INTENSITY OF NOISEAll OKProblems metOperation
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 5The noise is loudReplace EPS system electric motor Op.   4110D20 
5INTERFERENCE CHECKAll OKProblems metOperation

With the system not activated (ignition OFF), check:

  • interference of the steering wheel with the surrounding plastic parts.
  • interference of the steering wheel and/or driver's airbag with the surrounding parts.
  • interference of the steering column with the surrounding plastic parts.
  • interference between the lower forks connecting the steering box and the floor carpet.
Continue to Step 8The 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 componentsRestore 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 trimReposition the steering column switch unit and/or steering wheel cover
The fork is rubbing on the floor and/or carpetReposition the vehicle floor covering
Noise noticed from inside the electric steeringReplace the EPS system Op.   4110D20 
6FORK TIGHTENING CHECKAll OKProblems metOperation
Check that the lower fork nut is correctly tightened on the steering box pinionContinue to Step 8Tightening not correctRestore the correct tightening
7STEERING WHEEL OSCILLATION CHECKAll OKProblems metOperation
Check the type of steering wheel oscillationContinue to Step 8The fault occurs when the steering wheel oscillation is slightReplace the EPS system insulator (flexible coupling)
The fault occurs when the steering wheel movements are sudden, similar to emergency manoeuvresReplace the EPS system intermediate shaft
8Continue as instructed by the testerAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisFault persistsReplace the EPS system Op.   4110D20