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Vibrations during braking

Symptom: The front assembly may vibrate during braking.

Vibrations during braking


Fault symptoms

The front assembly may vibrate during braking.

Conditions

Car driven forward and brake pedal depressed.

Diagnostic help

Vibration can be due to the following causes


Excessive wheel hub runout

Excessive variation in brake disc thickness.


Check as described in Checking for lateral runout and variation in thickness, front wheels .