| | Results of the tests |
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation |
|---|
| Steer
to the right or the left and check whether the noise increases. | Noise does not change:Continue to Step 1 | The noise varies during
steering | See
table S45 |
| 1 | CHECK FRICTION SURFACES | All OK | Problems met | Operation |
|---|
| Check - condition of front pad friction surfaces
- condition of rear pad friction surfaces
| Continue to Step 3 | Friction surfaces vitrified
or with traces of grease, oil or water | Clean, check and eliminate
the causes of the fault |
| Front brake pads damaged or wrong type | Replace pads Op. 3310A60 |
| Rear shoes damaged or wrong type | Replace the shoes Op. 3320B10 |
| 2 | CHECK FRONT DISCS AND CALIPERS | All OK | Problems met | Operation |
|---|
| Check
condition of the front brake discsCheck the condition of the brake caliper pistons | Continue to Step 4 | Front discs worn or damaged | Grind the discs Op. 3310A54 ,
or replace if necessary |
| Front caliper pistons worn or seized | Replace brake calipers Op. 3310A30 |
| 3 | CHECK REAR DRUMS | All OK | Problems met | Operation |
|---|
| Check
the condition of the rear brake drums | Drum ovalisation, even if slight, causes increased noise |
| Continue to Step 5 | Rear drums worn or damaged | Replace the drums Op. 3320B30 |
| 4 | CHECKING CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check
that the fault is no longer present | End of diagnosis | Fault persists | Search for the fault starting
from another symptom |