192005532 - S017 FRONT SUSPENSION NOISE (WHISTLING/HUMMING)

Whilst driving, especially on unmade roads, there are whistling type noises coming from the front suspension. This fault diagnosis can only be carried out after the     See table S015 VEHICLE RUNNING NOISE . Carry out the latter first.
If the problem is only on one side, carry out the checks and any necessary operations on the appropriate side only
Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation
Having carried out the road test during the See table    S15 RUMOROSITA'' in condizioni di marcia, a whistling noise was noticed coming from the front.Continue depending on the circumstances in which the noise occursEnd of diagnosisThe noise increases round bendsReplace the wheel bearing on the side where the noise is loudest Op.    4450C32
The noise increases in vertical oscillation conditionsContinue to Step 1
1SHOCK ABSORBER STEM CHECKAll OKProblems metOperation
Check that the noise is not due to friction between the shock absorber stem and the seal, by getting underneath the vehicle on a trolleyEnd of diagnosisFriction is noticedLubricate the stem with a layer of silicon grease. If the noise persists, replace the shock absorber Op. 4450A12)