230
Wheels, tyres
Picture no: 17215t.tif
Tread depth
Check tread depth regularly.
If wear in the front is greater than that in
the rear, move the rear wheels to the front
axle and vice versa.
Correct tyre pressure. For vehicles with
Deflation Detection System (DDS)
3
or tyre
pressure control system
3
,
initialise the
system – see pages 217, 220.
For reasons of safety, tyres should be
replaced when their tread depth has worn
down to 2 to 3 mm (winter tyres: 4 mm).
Picture no: 17216t.tif
The legally permissible minimum tread
depth (1.6 mm) has been reached when
the tread has worn down as far as one of
the wear indicators (TWI
1)
).
A number of
wear indicators are spaced at equal
intervals around the tyre within the tread.
Their position is indicated by markings on
the tyre sidewall.
General information
z
The danger of aquaplaning is greater if
the tyres are worn.
z
Tyres age, even if they are used only very
little or not at all. A spare wheel which
has not been used for six years should be
used with care.
z
Never fit used tyres the previous history
and use of which you do not know.
z
So as not to impair brake cooling, use
only wheel trims approved for use on
your vehicle.
1)
TWI
=
T
read
W
ear
I
ndicator.