The steering wheel generates grinding noises between the steering wheel and steering column switch module during
steering maneuvers
See example file in the attachments area: Lenkrad-Schleifgeräusch_SteeringWheel-GrindingNoises.mp4
The plastic cover on the back of the steering wheel is not positioned correctly and may therefore rub against the steering
column switch module
Please use the following noise files for the damaged part analysis:
1. Grinding noise | pot. cause: steering wheel | see attachment: Lenkrad-Schleifgeräusch_SteeringWheel-GrindingNoises.
mp4
2. Creaking/cracking noise | pot. cause: steering column switch module | see attachment: MRSM-Schleifgeräusch_
SCCM-GrindingNoises.MOV
If the noise is due to the steering column switch module, please use LI46.10-P-077314.
Check for grinding areas on the steering wheel:
Please check the covers on the rear for protrusion and, if necessary, remount.
1. Mask off openings on back of steering wheel with adhesive tape
1. Mark the back of the steering wheel with colored chalk (see Picture 1)
2. Mount steering wheel on steering column switch module and turn the steering wheel from left lock to right lock ten
times.
3. The chalk will now have disappeared in the areas where there is rubbing (see Picture 2)
Warning: Ensure that no cables and visible areas of the steering wheel are damaged.
The abrasive excess material on the back of the steering wheel must be carefully removed with a Dremel tool.
Tip: You will need to remove approx. 0.1 mm to 0.3 mm of material (example: Picture 3)
Make sure that none of the ground-off material gets into the steering wheel.
After removing the material, clean the entire back of the steering wheel with a 1% soap solution.
