Test results

Check the tyres for wear. Specifically:

- wear on outer edge;

- wear on inner edge;

- wear on tyre shoulder;

- tread wear

Move on to Step 4

1. Even wear on both sides: inflation pressure low

2. Step wear on one side (outer or inner)

3. Wear on outer edge: exterior smooth

4. Tyre shoulder wear

5. Central tread wear: inflation pressure too high

6. Even wear on tread surface: compound quality

7. Tread wear

1. Make sure tyres are inflated to the correct pressure. If necessary, replace the tyres

2. Move on to Step 2

3. Move on to Step 2

4. The problem is due to the customer's driving style being too sporty: If necessary, replace the tyres

5. Make sure tyres are inflated to the correct pressure. If necessary, replace the tyres

6. Replace the tyres

7. Replace the tyres

Check the front wheel geometry

Move on to Step 3

Front wheel geometry not correct

Restore the correct geometry and replace the front tyres if necessary

 Op. 4450A10 FRONT WHEEL GEOMETRY - CHECK USING OPTICAL EQUIPMENT - INCLUDES ADJUSTMENT IF NECESSARY

Check the rear wheel geometry

Move on to Step 4

Rear wheel geometry not correct

Restore the correct geometry and replace the rear tyres if necessary

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

Check the efficiency of the shock absorbers

End of diagnosis

1. Front shock absorbers inefficient

2. Rear shock absorbers inefficient

1. Replace the shock absorbers.

 Op. 4410A12 FRONT SUSPENSION DAMPER (ONE), LH OR RH - FOR MCPHERSON STRUT SYSTEM - INCLUDES DISMANTLING/REASSEMBLY OF ASSEMBLY AT BENCH - R.R

If necessary, replace the front tyres

2. Replace the shock absorbers.

 Op. 4420A30 REAR SUSPENSION SHOCK ABSORBER (ONE), LEFT OR RIGHT - R.R. - CHECK WHEEL GEOMETRY SEPARATELY

If necessary, replace the rear tyres