72949 - X50 TYRE WEAR

The tyre wear is uneven.

STEP	OPERATIONS TO BE CARRIED OUT	TEST RESULTS
0	PRELIMINARY CHECKS	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the tyres are all the same type with type approval	Move on to Step	Tyres different or not type approved	Replace the tyres involved
1	SHOULDER WEAR CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Inspect the tyres carefully checking that the shoulders have not worn quickly.	Move on to Step	Inflation pressure too low	Restore the correct pressure; if necessary, replace the tyres involved
2	CENTRE AREA WEAR CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Inspect the tyres carefully checking that the centre area has not worn quickly.	Move on to Step	Inflation pressure too high	Restore the correct pressure; if necessary, replace the tyres involved
3	CHECK FOR CRACKS	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Inspect the tyres carefully checking that there are no cracks in the tread.	Move on to Step	Presence of cracks	Replace the tyres
4	CHECK FOR WEAR ON ONE SIDE	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Inspect the tyres carefully checking that they have not worn quickly on one side only.	Move on to Step	1. Front tyres worn on one side only: front wheel geometry not correct	1. Check the wheel geometry; if necessary, replace the suspension/steering components which are faulty and/or the front tyres
			2. Rear tyres worn on one side only: rear wheel geometry not correct	2. Check the wheel geometry; if necessary, replace the suspension/steering components which are faulty and/or the rear tyres
5	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present