Check that the brake pedal is not soft

Check brake fluid level

Check that there are no fluid leaks from: connectors, pipes, hoses, brake adjuster, reservoir, wheel cylinders, master cylinder

Check that the flexible couplings expand under the braking action

Move onto step 2

• Bleed the air Op. 3330A14

End of diagnosis

• Tighten the connectors or replace the part generating the leak, then top up to the medium level Op. 3330A10

End of diagnosis

• Move on to Step 2

End of diagnosis

• Replace hoses

End of diagnosis

Check that the brake pedal does not have two pressure stages and that it returns promptly

Move onto step 3

• Replace the brake servo/pump assembly Op. 3330D02

End of diagnosis

• Replace pump/ servo brake assembly Op. 3330D02

End of diagnosis

• Replace calipers Op. 3310A30

End of diagnosis

• Replace calipers Op. 3310B36

End of diagnosis

Check the efficiency of the handbrake self-adjuster, by pulling the handbrake

Move onto step 4

• Change the device

End of diagnosis

Check whether the pedal becomes too soft after several braking actions (Vapour loop)

Move onto step 5

• Replace brake-clutch fluid Op. 0010T62

End of diagnosis

• Change the brake fluid Op. 0010T60

End of diagnosis

Check that the hole in the brake fluid reservoir is not blocked

Move onto step 6

• Clean reservoir hole

End of diagnosis

Test the vehicle before delivery to the customer, to check that the fault is no longer present

NOTE: The test is essential, as the braking system involves a safety feature of the car

Incorrect selection of diagnostic procedure

Incorrect selection of diagnostic procedure