– Ensure direction of rotation is correct and tyres are not fitted
wrong way round.
4.8.2 Wear pattern: checking
The wear pattern on the front tyres will indicate, for example, if
toe and camber settings should be checked:
♦ Feathering on tread indicates incorrect toe setting.
♦ One-sided tread wear is mainly attributed to incorrect cam‐
ber.
If wear of this nature is detected, determine cause by checking
wheel alignment (repair measure).
4.8.3 Tyre tread depth (including spare
wheel): checking
– Check tyre tread depth.
Minimum tread depth: 1.6 mm
Note
♦
This figure may vary according to legislation in individual
countries. Ask your importer.
♦
The minimum tread depth is reached when the tyres have
worn down level with the 1.6 mm high tread wear indicators
-arrows- positioned at intervals around the tyre.
♦
If the tread depth is approaching the minimum allowed
depth, inform the customer.
4.8.4 General information
NOTICE
For safety reasons, only tyres of same type and tread pattern
should be fitted on a vehicle! Approved wheel and tyre combi‐
nations e.g. ⇒ Wheels and tyres guide; Rep. gr. 44; Wheels,
tyres, vehicle geometry; Wheel and tyre combinations.
On vehicles with four-wheel drive, tyres of the same type and
tread pattern must be used. Otherwise the self-locking centre
differential may be damaged.
ID.4 2021 ➤
Maintenance - Edition 12.2020
4. Descriptions of work 27
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