Brake pedal oscillation
- Make
- Alfa Romeo
- Model
- 147 Factory Service Manual
- Year
- 2000–2004
- Section
- Braking system › Brake pedal oscillation
Fault diagnosisBrake pedal oscillation
BRAKE PEDAL OSCILLATION
During braking the vehicle vibrates and the pedal surges
| Results of the tests | ||||
| 1 | CHECK ON SURGING | All OK | Problems met | Operation |
|---|---|---|---|---|
With the vehicle moving, press the brake pedal gently With the vehicle moving and the brake pedal released, operate the handbrake partly | Continue to Step 2 | Surging is only present on the brake pedal | If necessary, grind or replace the front discs Op. 3310A48 | |
| The surging is perceived on both the brake pedal and the handbrake lever. | If necessary, grind or replace the rear discs Op. 3310B48 | |||
| 2 | CHECK WHETHER SURGING PERSISTS | All OK | Problems met | Operation |
With the vehicle moving, press the brake pedal gently With the vehicle moving and the brake pedal released, operate the handbrake partly | Continue to Step 3 | The vibration persists only on the brake pedal | Replace the front hubs Op. 4450C32 | |
| The vibration persists on both the brake pedal and the handbrake lever | Replace the rear hubs Op. 4450D36 | |||
| 3 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation |
Test the vehicle before delivery to the customer, to check that the fault is no longer present. The test is essential, as the braking system involves a safety feature of the car | Fault persists | Search for the fault starting from another symptom' | ||
Parts & tools for this job For 2000 Alfa Romeo 147
- PARTBrake padsSearch: Alfa Romeo 147 2000 brake pads
- TOOLBrake bleeder kitSearch: one man brake bleeder kit
- FLUIDBrake fluidSearch: brake fluid
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