Preliminarily check that the tools which come with the vehicle and the spare wheel are properly fixed

Road test the vehicle on an unmade road or one with a large number of bends to identify the type of noise:

Unspecified noise: Move onto step 1

Move onto step 1

Move onto step 3

Move onto step 5

Check the rear suspension components for any signs of rubbing:

• between the suspension arm bushes and washers
• between the dust cover and the shock absorber
• between the end of travel buffer and the housing

Move onto step 2

• Lubricate or replace the parts involved (see Subassembly 4420)

End of diagnosis

Check the condition of the anti-roll bar flexible mountings and that they are correctly tightened

Move onto step 6

• Restore the tightenings, lubricate, or replace the mountings Op. 4420C10

End of diagnosis

Check for any friction between the shock absorber stem and the seal

Move onto step 4

• Lubricate or replace the shock absorber Op. 4420A12

End of diagnosis

Check the operation of the rear wheel hub bearing

Move onto step 9

• Replace the wheel hub bearing Op. 4450D10

End of diagnosis

Check the condition of the bushes and mountings and that they are correctly tightened In the order:

• track control arm ball joints
• shock absorber attachment mounting

Move onto step 6

• Replace the supports (see Assembly 4420B)

End of diagnosis

• Replace the mounting Op. 4420A12

End of diagnosis

Check that the brake pipes and handbrake cables under the bodyshell are correctly positioned and fixed

Move onto step 7

• Suitably tighten the components involved.
• Replace any damaged components, if necessary (see Assembly 3340B)

End of diagnosis

• Suitably tighten the components involved. Replace any damaged components, if necessary (see Assembly 3380A)

End of diagnosis

Check that the brackets securing the reservoir to the underbody are correctly positioned and fixed

Move onto step 8

• Suitably tighten the components involved.
• Replace any damaged components PROCEDURES - Assy. 1040A.

End of diagnosis

Check that the exhaust pipe is correctly positioned and fixed to the underbody

Move onto step 9

• Suitably tighten the components involved.
• Replace any damaged components, if necessary (see Assembly 1076B)

End of diagnosis

Check that the fault is no longer present

End of diagnosis

Incorrect selection of diagnostic procedure