323001382 - S033 STEERING WHEEL AND BRAKE PEDAL VIBRATIONS

When the brake pedal is depressed slightly (even with the brakes cold and at low speed) the steering wheel and the brake pedal vibrate.
Test results
1CHECK THE WHEEL STUD TIGHTENINGAll OKProblems encounteredOperation
Check the wheel studs are correctly fastenedMove on to Step 2Incorrect tightnessTighten the wheel bolts to the correct torque
2CHECK FRONT DISCSAll OKProblems encounteredOperation
Check the following, in order:- the condition;- changes in thickness;- irregular disc wear.Move on to Step 3Front discs worn irregularly unevenly or damagedReplace the front brake discs    Op. 3310A48 FRONT BRAKE DISC (ONE), LEFT OR RIGHT - R.R
3CHECK ON PAD SURFACES CONDITIONAll OKProblems encounteredOperation
Check:- the condition of the pad brake surfaces;- that the pads are not wornEnd of diagnosis1. Brake surfaces vitrified or with traces of grease, oil or water2. Front pads worn (reduced pad compressibility)1. Clean again, check and remove the causes of the fault2. Replace the front pads    Op. 3310A60 FRONT BRAKE PADS - REPLACE