312000736 - O002 FRONT SEAT BACKREST ANGLE ADJUSTMENT NOT WORKING

Hardness during the adjustment of the backrest
Test results
0PRELIMINARY CHECKSAll OKProblems encounteredOperation
Operate the backrest adjustment knob without resting your back against the backrest and check whether the hardness persists.End of diagnosis1. Hardness disappears2. Hardness persists1. Explain to the customer that the adjustment should be carried out without resting their back on the backrest.2. Move on to Step 1
1COVER KNOB CHECKAll OKProblems encounteredOperation
Check for interference with the cover (knob on cover).Move on to Step 2Presence of interference at the knob on the cover.Remove the interference and check that the regulator is working properly.
2SEAT CHECKAll OKProblems encounteredOperation
Remove the seat from the vehicle,    Op. 7045A10 FRONT SEAT (ONE), LEFT OR RIGHT - R.R. remove the (left and right) side covers, release the joints and check that the backrest upholstery does not stick to the regulatorMove on to Step 3Upholstery sticks to the adjustment device.Release the adjuster from the upholstery and remove the damaged parts of the upholstery. If it is too damaged, replace it with new upholstery    Op. 7045D30 FRONT SEAT BACKREST COVER, LEFT OR RIGHT - R.R. lubricate and carry out at least five full operating cycles to let it run in.
3BACKREST ADJUSTERS CORRECT SETTING CHECKAll OKProblems encounteredOperation
Check that the phasing of the backrest adjusters is correct by moving the backrest.Move on to Step 4The backrest is crooked along the centre line axis when viewed from abovePartly release the joint connecting rod (removing the washer fitted on the rod) and rephase the adjusters.
4CORRECT OPERATION CHECKAll OKProblems encounteredOperation
Check that the fault is no longer present.End of diagnosisThe fault persistsReplace the seat frameOp. 7045A86 FRONT SEAT CUSHION COVER, LEFT OR RIGHT - R.R. WITH SEAT REMOVED