Having carried out the road test, during the

See table S015 NOISE WHILST DRIVING

there was a knocking noise from the back.

Continue depending on the circumstances in which the noise occurs.

Raise the vehicle on a two column lift and check that there are no oil leaks from the shock absorber stem.

the check on the shock absorber should only be carried out after driving on a dry road, slight dampness of the stem is considered normal since this is due to evaporation that takes place during the operation of the shock absorber.

If there is a persistent oil leak on the shock absorber stem, make sure that it is not coming from other parts of the vehicle that are lubricated

Replace the shock absorber

Op. 4420A12 REAR SUSPENSION DAMPER (ONE), LH OR RH - FOR MCPHERSON STRUT SYSTEM - INCLUDES DISMENTLING/REBUILDING OF ASSEMBLY AT BENCH R R

Check that there are no signs of interference between the suspension elements or between the latter and the bodyshell. In particular, check that there are no signs of wear on the suspension springs and that they do not show signs of abrasion.

If the spring shows signs of abrasion, its mechanical properties could be weakened as a result of oxidation.

Replace the spring

Op. 4420A12 REAR SUSPENSION DAMPER (ONE), LH OR RH - FOR MCPHERSON STRUT SYSTEM - INCLUDES DISMENTLING/REBUILDING OF ASSEMBLY AT BENCH R R

taking care to fit it correctly

Locate the area of the possible noise source: top or bottom.

Starting from the area where the knocking was identified, check

See Test 4420OB CHECK ON CORRECT TIGHTENINGS FOR REAR SUSPENSION

the tightening torques of the non-yield point type fixing bolts:

- the shock absorber shim;

- the lower mounting of the shock absorber to the longitudinal track control arm;

- the transverse plate to the longitudinal arm;

- the bracket fastening the longitudinal arm to the body;

- the fastening for the bush to the longitudinal arm;

- the anti-roll bar to the crossmember;

- the connecting rod to the bar and to the longitudinal arm;

- the camber rod to the steering knuckle;

(only for the 2.2 JTS) - the rear fastening of the longitudinal arm to the steering knuckle;

(only for the 3.2 V6 engine) - the rear differential fastening to the crossmember;

- the brake caliper to steering knuckle;

- the brake disc guard to the steering knuckle;

- the steering knuckle to the hub.

Visually inspect that the yield point type bolts have not loosened, the list is given below:

- the shock absorber bracket to the bodyshell;

- the camber rod to the crossmember;

- the transverse plate to the crossmember;

- the longitudinal arm bush to the mounting bracket on the bodyshell;

- the front fastening for the longitudinal arm to the steering knuckle;

- the crossmember to the bodyshell.

Check that there is no clearance between the camber rod and the crossmember or between the camber rod and the steering knuckle.

Also check the condition of the crossmember bush.

Replace the camber rod checking the correct camber values

Op. 4450A40 REAR WHEEL GEOMETRY - CHECK USING OPTICAL EQUIPMENT, INCLUDES ADJUSTMENT IF NECESSARY

Check that there is no clearance at the mounting of the plate on the crossmember.

Also check the condition of the bush fastened to the crossmember.

Replacement of longitudinal arm complete with transverse plate and bodyshell mounting bracket, in accordance with the

Op. 4420B10 L/H OR R/H REAR SUSPENSION WISHBONE (ONE) - R+R

checking the toe-in values are correct

Op. 4450A40 REAR WHEEL GEOMETRY - CHECK USING OPTICAL EQUIPMENT, INCLUDES ADJUSTMENT IF NECESSARY

Check at the longitudinal track control arm that:

- there is no clearance between the bush and the mounting bracket on the bodyshell;

- there are no glycol leaks (fluid inside the hydraulic bush) at the bush fastened to the bodyshell.

Replacement of longitudinal arm complete with transverse plate and bodyshell mounting bracket, in accordance with the

Op. 4420B10 L/H OR R/H REAR SUSPENSION WISHBONE (ONE) - R+R

checking the toe-in values are correct

Op. 4450A40 REAR WHEEL GEOMETRY - CHECK USING OPTICAL EQUIPMENT, INCLUDES ADJUSTMENT IF NECESSARY

Replacement of longitudinal arm complete with transverse plate and bodyshell mounting bracket, in accordance with the

Op. 4420B10 L/H OR R/H REAR SUSPENSION WISHBONE (ONE) - R+R

checking the toe-in values are correct

Op. 4450A40 REAR WHEEL GEOMETRY - CHECK USING OPTICAL EQUIPMENT, INCLUDES ADJUSTMENT IF NECESSARY

Check that there is no clearance between the stub axle and the longitudinal arm and between the stub axle and the camber rod.

Also check the condition of the stub axle bushes.

Replacement of rear stub axle, in accordance with

Op. 4450D14 STUB AXLE FOR ONE REAR WHEEL HUB, LEFT OR RIGHT - R.R WITH HUB REMOVED - INCLUDES BUSH REPLACEMENT IF NECESSARY - CHECK WHEEL GEOMETRY SEPARATELY

checking the toe-in values are correct

Op. 4450A40 REAR WHEEL GEOMETRY - CHECK USING OPTICAL EQUIPMENT, INCLUDES ADJUSTMENT IF NECESSARY

After having disconnected the lower track rod end for the rod connected to the longitudinal track control arm, check that the anti-roll bar does not come down quickly.

Also check that there are no signs of wear or tears on the connecting rod boots.

Replace the anti-roll bar

Op. 4420C10 REAR SUSPENSION STABILIZER BAR - R+R

When the luggage compartment interior lining side panels are removed following the

Op. 7040B18 LOAD COMPARTMENT LOAD PLATFORM SIDE TRIM ONE LH OR RH - R.R

Check the tightening torques for the following bolts:

- fastening of the shock absorber buffer plate;

Check that the buffer plate is fitted correctly

See Test 4420AG CHECK ON CORRECT FITTING OF SHOCK ABSORBER BUFFER PLATE

The left and/or right wheel must be removed to carry out this check

then check:

- that the mounting and support are correctly matched;

- the condition of the shock absorber mounting.