3308751 - X50 TYRE WEAR

There is irregular wear of the tyres.
Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation
Check that all four tyres are the same, homologated type Continue to Step 1 Tyres different or not homologatedReplace the tyres involved
1SHOULDER WEAR CHECKAll OKProblems metOperation
Carefully examine the type of wear. The shoulders have worn quickly Continue to Step 2 Inflation pressure too lowRestore the correct pressure; if necessary, replace the tyres involved
2CENTRE AREA WEAR CHECKAll OKProblems metOperation
Carefully examine the type of wear.The centre areas have worn quickly Continue to Step 3 Inflation pressure too high Restore the correct pressure; if necessary, replace the tyres involved Op.   4450B10 
3CHECK FOR PRESENCE OF CRACKSAll OKProblems metOperation
Carefully examine the type of wear.There are cracks in the tread Continue to Step 4 Inflation pressure too low or tyre is not the recommended type Restore the correct pressure; if necessary, replace the tyres involved Op.   4450B10 
4CHECK FOR WEAR ON ONE SIDEAll OKProblems metOperation
Carefully examine the type of wear.The tyre has worn quickly on one side only Continue to Step 5 Front wheel geometry not correct Check the wheel geometry: Op.   4450A10  . If necessary, replace the tyres involved
Rear wheel geometry not correct Check the wheel geometry: Op.   4450A40  . If necessary, replace the tyres involved
5CHECK FOR THE PRESENCE OF INDIVIDUAL AREAS OF WEARAll OKProblems metOperation
Carefully examine the type of wear.There are individual areas of wear. Continue to Step 6 Balancing not correct or tyre defectiveBalance the wheels; if necessary, replace the tyres involved
Front shock absorbers not working properly Replace the shock absorbers involved Op.   4410A10 
Rear shock absorbers not working properly Replace the shock absorbers involved Op.   4420A10 
6CHECK FOR PRESENCE OF WEAR 'IN STEPS'All OKProblems metOperation
Carefully examine the type of wear.The wear is 'in steps' Continue to Step 7 Front wheel geometry not correct Check the wheel geometry: Op.   4450A10  . If necessary, replace the tyres involved
Rear wheel geometry not correct Check the wheel geometry: Op.   4450A40  . If necessary, replace the tyres involved
7CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisFault persistsSearch for the fault starting from another symptom'