312000215 - F005 BRAKE PEDAL OSCILLATION

The vehicle vibrates and the pedal oscillates during braking
Test results
1OSCILLATION CHECKAll OKProblems encounteredOperation
Press the brake pedal gently with the vehicle moving.With the vehicle moving and the brake pedal released, partly activate the handbrakeMove on to Step 21. The oscillation is only present at the brake pedal2. The oscillation is noticeable at both the brake pedal and the handbrake lever1. Replace the front brake discsOp. 3310A50 2. Replace the rear brake discsOp. 3310B50
1OSCILLATION CHECKAll OKProblems encounteredOperation
Press the brake pedal gently with the vehicle moving.With the vehicle moving and the brake pedal released, partly activate the handbrakeMove on to Step 21.The oscillation is only present at the brake pedal2.The oscillation is noticeable at both the brake pedal and the handbrake lever1.Replace the front brake discsOp. 3310A50 2.Replace the rear drumsOp. 3330B20 PEDAL UNIT - R + R FOR AUTOMATIC TRANSMISSION VERSIONS
2OSCILLATION PERSISTANCE CHECKAll OKProblems encounteredOperation
Carry out the tests described in the previous step having replaced the brake discsMove on to Step 31. The vibration only persists at the brake pedal.2. The vibration persists at both the brake pedal and the handbrake lever.1. Replace the front hubsOp. 4450C40 HUB FOR ONE FRONT WHEEL, LEFT OR RIGHT - R.R. WITH WHEEL REMOVED - INCLUDES BEARING CHECK AND GASKET REPLACEMENT - CHECK WHEEL GEOMETRY SEPARATELY2. Replace the rear hubs    Op. 4450D10 HUB FOR ONE REAR WHEEL, L/H OR R/H - R+R WITH WHEEL REMOVED - CHECK WHEEL GEOMETRY SEPARATELY
3CORRECT OPERATION CHECKAll OKProblems encounteredOperation
Test the vehicle before returning it to the customer, checking that the problem no longer exists.
The test is essential becaues the braking system is one of the vehicle''s safety systems
End of diagnosis