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Alfa Romeo Brera and Spider Factory Service Manual (2005-2010)23 · Fault diagnosis

Alfa Romeo
Brera and Spider Factory Service Manual (2005-2010)
Fault diagnosis
Seats
Front seat backrest angle adjustment not working

23 · Diagnostics

Front seat backrest angle adjustment not working

Make: Alfa Romeo
Model: Brera and Spider Factory Service Manual
Year: 2005–2010
Section: Seats › Front seat backrest angle adjustment not working

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Fault diagnosisFront seat backrest angle adjustment not working

FRONT SEAT BACKREST ANGLE ADJUSTMENT NOT WORKING

Hardness during the adjustment of the backrest

0	PRELIMINARY CHECKS	All OK	Problems encountered	Operation
		Test results
	Operate the backrest adjustment knob without resting your back against the backrest and check whether the hardness persists	End of diagnosis	1. Hardness disappears 2. Hardness persists	1. Explain to the customer that the adjustment should be carried out without resting their back on the backrest 2. Move on to Step 1
1	CHECKS ON KNOB ON COVER	All OK	Problems encountered	Operation
	Check for interference with the cover (knob on cover)	Move on to Step 2	Presence of interference at the knob on the cover	Remove the interference and check that the regulator is working properly
2	CHECK ON THE SEAT	All OK	Problems encountered	Operation
	Remove the seat from the vehicle, remove the side cauterization (left and right), release the joints and check for the presence of paint lumps and/or machining residues Op. 7045A10 FRONT SEAT (ONE), LEFT OR RIGHT - R.R.	Move on to Step 3	Presence of paint lumps and/or machining residues	Eliminate the foreign bodies, lubricate and run in with at least five complete operating cycles
3	CHECKS ON THE BACKREST	All OK	Problems encountered	Operation
	Detension the backrest by loosening (first on one side and then on the other) the four M8 bolts joining the backrest to the cushion module and operate the backrest adjustment checking whether the hardening persists	Move on to Step 4	Hardness disappears	Fit a spacer shim between the backrest adjustment bracket and the side of the cushion, then tighten the bolts to the correct torque
4	CHECK ON THE CORRECT PHASING OF THE BACKREST ADJUSTERS	All OK	Problems encountered	Operation
	Check that the phasing of the backrest adjusters is correct by moving the backrest	Move on to Step 4	The backrest moves with a sinusoidal movement	Partly release the joint connecting rod (removing the washer fitted on the rod) and rephase the adjusters
5	CHECK ON CORRECT OPERATION	All OK	Problems encountered	Operation
	Check that the fault is no longer present	End of diagnosis	The fault persists	Replace the backrest assembly Op. 7045A18 FRONT SEAT BACKREST ASSEMBLY (ONE), LEFT OR RIGHT - R.R.

‹ Prev Front seat sliding not working Next › Front seat lumbar adjustment not working

Parts & tools for this job Staging For 2005 Alfa Romeo Brera

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