2751125 - S38 NOISE WHEN THE ELECTRIC STEERING IS USED WITH THE VHEICLE MOVING

The customer complains of noise from the electric steering system with the engine started and the vehicle moving
Results of the tests
1CHECK ON TYPE OF NOISEAll OKProblems metOperation
Check that the noise is not the metallic/mechanical type over unmade roadsContinue to Step 6The noise is the metallic/mechanical typeContinue to Step 2
2MECHANICAL CHECKAll OKProblems metOperation
Check the condition of the steering column gear and/or steering box supports. Continue to Step 6The bearing is intact.Replace the EPS system steering column.)
The bearing is intact.Replace the system electric motor Op. 4110D30
3CHECK ON CONDITIONS IN WHICH THE FAULT OCCURSAll OKProblems metOperation
Check whether the noise persists even without the driver's Air BagContinue to Step 4The fault does not occur after the driver's Air Bag has been removedDo not adjust the EPS system, but the Air Bag system
4CHECK ON CONDITIONS IN WHICH THE FAULT OCCURSAll OKProblems metOperation
Check that the noise continues unchanged after the steering wheel has been turned in both directions Continue to Step 5The noise lessens when the steering wheel is turned in both directionsReplace the EPS system intermediate shaft
5CHECK ON CONDITIONS IN WHICH THE FAULT OCCURSAll OKProblems metOperation
Check whether the noise alters according to the steering conditions (clockwise rotation, anti-clockwise, steering wheel aligned)Continue to Step 6The noise is the same in all steering conditions (clockwise rotation, anti-clockwise, steering wheel aligned) Replace the insulator (flexible coupling)
4CHECK ON CONDITIONS IN WHICH THE FAULT OCCURSAll OKProblems metOperation
Check the intensity of the noise when steering in a clockwise directionEnd of diagnosisThe noise lessens when the steering wheel is turned in a clockwise directionReplace the EPS system Op.   4110D20