Operation Manual

Driv in g and op era tio n148
Tyre designations
Meanings:
e.g. 235/60 R 17 102 H
Speed code letters:
Wi nt er tyre s 3
See page 216 for restrictions.
Winter tyres (M + S tyres) im prov e safety at
extre mely low outside te mperatures and
should therefore be fitted on all wheels.
The design of summer tyres means they
ha ve lim ited qualities for winter driving.
If the m aximum p ermissible s pee d for th e
winter tyres is less than that of the vehicle,
a notic e indicating the maximum
permissib le speed for the tyres must be
affixed within the driver's field of v ision 3
1)
.
If you use the spare wheel when it is fitted
with a sum mer tyre; the vehic le's
driveab ility may be affected, esp ecially on
slippery road surfaces. Obtain a
replacement for the faulty tyre as soon as
possible, and have the w heel balanced
and fitted to the vehicle.
Ensure that winter tyres are inflated to the
correct pressure specified by the tyre
manufacturer.
If winter tyres are installed that have not
been approved for your vehic le, ESC
performance may be a ffected. Consult a
workshop regarding availa bility of
approved winter tyres.
Wheel trims 3
If the wheel trims and tyres used are not
Vauxhall-approved, make sure the tyres do
not have a bead ed edge - see page 145.
Tyre chains 3
See page 216 for restrictions.
Tyre chains must not be used on the
temporary spare wheel. If you need to use
tyre chains after suffering a flat front tyre,
fit the temporary spare wheel on the rear
axle and transfer one of the rear w heels to
the front axle.
235 =Tyre width inmm
60 = Asp ect ratio
(tyre height to tyre width in %)
R =Belt type: Radial
17 = Rim d ia meter in inches
102 = Loa d index
e. g.: 91 rep re sents 618 kg
H =Speed code
Q Up to 100 mph (160 km/h)
S Up to 112 mph (180 km/h)
T Up to 118 mph (190 km/h)
H Up to 130 mph (210 km/h)
V Up to 150 mph (240 km/h)
W Up to 168 mph (270 km/h)
1)
Va ri es fr om cou nt ry to co unt ry on a c cou nt o f
nation al reg ulations.