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Wheels and tyres
Tyre code (example) Meaning
TREADWEAR 220 Relative service life of the tyre, with respect to specific US standard test.
TRACTION A Braking capacity of tyre on wet surface (AA, A, B or C).
TEMPERATURE A Tyre temperature resistance at higher test speeds (A, B or C).
If the tyre has other markings, these are specific tyre manufacturer codes or specific national codes, e.g. for Brazil or China.
a)
The letters TIN refer to the tyre serial number.
Tyres with directional tread pattern
Tyres with directional tread pattern have
been designed to operate best when rotating
in only one direction. An arrow on the tyre
sidewall indicates the direction of rotation on
tyres with directional tread. Always observe
the direction of rotation indicated when
mounting the wheel. This guarantees opti-
mum grip and helps to avoid aquaplaning,
grip, noise and wear.
If the tyre is mounted in the opposite direc-
tion of rotation, drive with extreme caution,
as the tyre is no longer being used correctly.
This is of particular importance when the
road surface is wet. Change the tyre as soon
as possible or remount it with the correct di-
rection of rotation.
Tyre load rating
The load rating code indicates the maximum
load in kilogrammes each wheel can carry
(load capacity).
425 kg
462 kg
487 kg
515 kg
545 kg
615 kg
Speed rating
The speed rating indicates the maximum
speed permitted for the tyres.
max. 150 km/h (93 mph)
max. 160 km/h (99 mph)
max. 170 km/h (106 mph)
max. 180 km/h (112 mph)
max. 190 km/h (118 mph)
max. 200 km/h (124 mph)
max. 210 km/h (130 mph)
max. 240 km/h (149 mph)
max. 240 km/h (149 mph)
78
81
83
85
87
91
P
Q
R
S
T
U
H
V
Z
max. 270 km/h (168 mph)
max. 300 km/h (186 mph)
Some manufacturers use the letters “ZR” for
tyres with a maximum authorised speed
above 240 km/h.
Snow chains
When using snow chains, applicable local
legislation and maximum permitted speed
limits must be observed.
In winter weather, snow chains not only help
to improve grip but also improve the braking
capacity.
The fitting of chains is permitted only on
front wheels and with the following combi-
nations of wheel trims and tyres:
»
W
Y
169
Technical specifications
AdviceOperationSafety
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