2582403 - H02 DRIFT WHILST BRAKING

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Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation
Check that the brake pedal is not too softContinue to Step 1Brake pedal too soft See table   F10  EXCESSIVE BRAKE PEDAL FREE PLAY
1CHECK FOR FLUID LEAKSAll OKProblems metOperation

Check that there are no fluid leaks from:

  • calipers
  • wheel cylinders
  • master cylinder
Continue to Step 2Fluid leak from a caliperReplace the faulty caliper Op.   3310A30 
Fluid leak from a caliperReplace the faulty wheel cylinder Op.   3320B20 
2CHECK ON BRAKE WEARAll OKProblems metOperation
Check the brakes for wearContinue to Step 3Brakes very wornOverhaul the brakes
3CHECK WHEEL GEOMETRYAll OKProblems metOperation
1.9 DIESELCheck the geometry and track of the wheel axleContinue to Step 4Wheel geometry incorrectRestore the correct wheel geometry Op.   4450A10 
1.2 8vCheck the geometry and track of the wheel axleContinue to Step 7Wheel geometry incorrectRestore the correct wheel geometry Op.   4450A10 
1.2 8v ABSCheck the geometry and track of the wheel axleContinue to Step 5Wheel geometry incorrectRestore the correct wheel geometry Op.   4450A10 
4CHECK LOCKING OF REAR WHEELSAll OKProblems metOperation
1.9 DIESELCarry out a braking action and check that the rear wheels do not lockContinue to Step 7The rear wheel lockCalibrate or, if necessary, replace the load proportioning valve Op.   3330C60 
1.9 DIESEL ABSCarry out a braking action and check that the rear wheels do not lockContinue to Step 5The rear wheel lockCalibrate or, if necessary, replace the load proportioning valve Op.   3330C60 
5CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
1.9 DIESEL ABSConnect diagnostic equipment (Examiner or other instruments) to the diagnostic socket.Check that there are no faults in the ABS control unitContinue to Step 6An error is detected in the control unitContinue following the instructions for the diagnostic equipment
An error is detected in the control unitRestore the connection between the engine management control unit and the diagnostic connector See   E7020  ABS
6CHECK ON DRIFTAll OKProblems metOperation
1.9 DIESEL ABSDisconnect the ABS hydraulic control unitCheck whether there is drifting during braking at variable speedsContinue to Step 7Vehicle does not drift during brakingReplace the ABS hydraulic control unit (with the diagnostic equipment in active diagnosis) Op.   3340A12 
7CHECKING CORRECT OPERATIONAll OKProblems metOperation
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 persistsSearch for the fault starting from another symptom'