199000787 - H002 DRIFT WHILST BRAKING

The vehicle tends to drift to the left or the right whilst braking. If necessary, carry out a road test on a straight, flat road without transverse gradients to check the effective drift
Test results
0PRELIMINARY CHECKSAll OKProblems encounteredOperation
First of all, check the type, condition and pressure of the tyres.Check that the wheel bolts are correctly fastenedMove on to Step 11. Tyre inflation pressure not correct2. Tyres unsuitable or worn3. Wheel bolts not correctly tightened1. Make sure tyres are inflated to the correct pressure2. Replace the tyres3. Tighten the wheel bolts to the correct torque
1BRAKING SURFACES CHECKAll OKProblems encounteredOperation
Check:- the condition of the front pads braking surfaces;- the condition of the rear pads braking surfacesMove on to Step 21. Brake surfaces vitrified or with traces of grease, oil or water2. Front pads damaged or not the recommended type3. Rear pads damaged or not the recommended type1. Clean again, check and remove the causes of the fault2. Replace the front pads    Op. 3310A60 FRONT BRAKE PADS - REPLACE 3. Replace the rear pads    Op. 3310B62 REAR BRAKE PADS - REPLACE
2FRONT DISCS AND CALLIPERS CHECKAll OKProblems encounteredOperation
Check the condition of the front brake discs.Check the condition of the front brake caliper pistonsMove on to Step 31. Front discs worn or damaged2. Front calliper pistons worn or seized.1. Replace the front discs    Op. 3310A48 FRONT BRAKE DISC (ONE), LEFT OR RIGHT - R.R 2. Replace the front brake callipers    Op. 3310A30 FRONT BRAKE CALIPER (ONE) - R.R
3REAR DISCS AND CALLIPERS CHECKAll OKProblems encounteredOperation
Check the condition of the rear brake discs.Check the condition of the rear brake caliper pistonsMove on to Step 41. Rear discs worn or damaged2. Rear calliper pistons worn or seized1. Replace the rear discs    Op. 3310B48 REAR BRAKE DISC (ONE), LEFT OR RIGHT - R.R.2. Replace the rear brake callipers    Op. 3310B36 REAR BRAKE CALIPER (ONE), LEFT OR RIGHT - R.R
4CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Connect the Examiner diagnostic equipment to the diagnostic socket.Check that there are no faults in the ABS control unitMove on to Step 51. Error detected in the control unit2. No communication with the control unit1. Continue following the instructions on the diagnostic equipment2. Restore connection between the ABS control unit and the diagnostic connector    See E7020 ABS
5ACTIVE DIAGNOSIS WITH DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Keeping the Examiner diagnostic equipment connected carry out the active diagnosis of:- pump motor;- solenoidsMove on to Step 6Pump and/or solenoids faultyReplace the ABS electronic control unit electrohydraulic unit    Op. 3340A12 ABS HYDRAULIC AND ELECTRONIC CONTROL UNIT - R.R.
6FRONT GEOMETRY CHECKAll OKProblems encounteredOperation
Check the vehicle geometry and front wheel angles    Op. 4450A10 FRONT WHEEL GEOMETRY - CHECK USING OPTICAL EQUIPMENT - INCLUDES ADJUSTMENT IF NECESSARY Move on to Step 71. Geometry not correct2. Geometry not correct3. Angles not correct1. Check and, if necessary, replace the shock absorber    Op. 4410A12 FRONT SUSPENSION DAMPER (ONE), LH OR RH - FOR MCPHERSON STRUT SYSTEM - INCLUDES DISMANTLING/REASSEMBLY OF ASSEMBLY AT BENCH - R.R 2. Check and, if necessary, replace the spring    Op. 4410A12 FRONT SUSPENSION DAMPER (ONE), LH OR RH - FOR MCPHERSON STRUT SYSTEM - INCLUDES DISMANTLING/REASSEMBLY OF ASSEMBLY AT BENCH - R.R 3. Restore correct angles    Op. 4450A10 FRONT WHEEL GEOMETRY - CHECK USING OPTICAL EQUIPMENT - INCLUDES ADJUSTMENT IF NECESSARY
7REAR GEOMETRY CHECKAll OKProblems encounteredOperation
Check the vehicle geometry and rear wheel angles    Op. 4450A40 REAR WHEEL GEOMETRY - CHECK USING OPTICAL EQUIPMENT, INCLUDES ADJUSTMENT IF NECESSARY End of diagnosis1. Geometry not correct2. Geometry not correct3. Angles not correct1. Check and, if necessary, replace the shock absorber    Op. 4420A30 REAR SUSPENSION SHOCK ABSORBER (ONE), LEFT OR RIGHT - R.R. - CHECK WHEEL GEOMETRY SEPARATELY 2. Check and, if necessary, replace the spring    Op. 4420A40 L/H OR R/H REAR SUSPENSION COIL SPRING (ONE) - R+R 3. Restore correct angles    Op. 4450A40 REAR WHEEL GEOMETRY - CHECK USING OPTICAL EQUIPMENT, INCLUDES ADJUSTMENT IF NECESSARY