312000775 - S027 REAR NOISE (WHISTLING/HUMMING)
Whilst driving, especially on unmade roads, there is a whistling or blowing noise coming from the rear suspension. This diagnosis can only be made after See table S015 NOISE WHILST DRIVINGCarry out the latter first. | If the problem is only on one side, carry out the checks and any operations on the appropriate side only. |
| Test results | ||||
| 0 | PRELIMINARY CHECKS | All OK | Problems encountered | Operation |
|---|---|---|---|---|
| Having carried out the road test, during the See table S015 NOISE WHILST DRIVING, there was a whistling/blowing noise from the back.Continue depending on the circumstances in which the noise occurs. | End of diagnosis | 1. The noise increases when cornering.2. The noise increases in vertical oscillation conditions. | 1. Replace the wheel bearing complete with hub on the side where the noise is loudest Op. 4450D10 HUB FOR ONE REAR WHEEL, L/H OR R/H - R+R WITH WHEEL REMOVED - CHECK WHEEL GEOMETRY SEPARATELY 2. Move on to Step 1. | |
| 1 | BRAKE DRUM CHECK | All OK | Problems encountered | Operation |
| Remove the wheel and check the wear of the braking seals. | Move on to Step 2 | Drums worn. | Replacement of rear brake drums Op. 3320B30 REAR BRAKE DRUM (ONE), LEFT OR RIGHT - R.R. | |
| 2 | SHOCK ABSORBER STEM CHECK | All OK | Problems encountered | Operation |
| Remove the wheel and check that the noise is not due to irregular friction between the shock absorber stem and the gasket, checking the condition of the stem chrome surface. | End of diagnosis | There is irregular friction. | Lubricate the stem, raising the dust cover with a layer of silicone grease.If the noise persists, replace the shock absorber Op. 4410A12 FRONT SUSPENSION DAMPER (ONE), LH OR RH - FOR MCPHERSON STRUT SYSTEM - INCLUDES DISMANTLING/REASSEMBLY OF ASSEMBLY AT BENCH - R.R | |