The essentials
Subsequent work ●
Alloy wheels: replac e the wheel bolt caps.
● Plate wheels: replac
e the wheel hubcap.
● Return all tools to their proper storing loca-
tion.
● If the replaced wheel does not fit in the
spare wheel
housing, store it safely in the
luggage compartment ›››
page 135.
● Check the tyre pressure of the newly moun-
ted tyre a
s soon as possible.
● In vehicles fitted with a tyre pressure indi-
cator , a
djust the pressure and store it in
memory ›››
page 216.
● Have the tightening torque of the wheel
bolts chec
ked as soon as possible with a tor-
que wrench (it should be 120 Nm). Mean-
while, drive carefully.
● Have the flat tyre replaced as quickly as
possib
le.
Snow chains Use Snow chains should only be used on the
fr
on
t wheel
s.
● Check that they are correctly seated after
driving for a f
ew yards; correct the position if necessary, in accordance with the manufac-
turer's fittin
g instructions.
● Keep your speed below 50 km/h (30 mph).
● If there is a danger of being trapped de-
spite hav
ing mounted the chains, it is best to
disable the driving wheels (ASR) in the ESC
››› page 155.
Snow chains will improve braking ability as
well as traction in winter conditions.
For technical reasons snow chains may only
be used with the following wheel rim/tyre
combination.
175/70R14
185/60R15Chains with links not exceeding 15 mm
(including the chain closure)
215/45R16Chains with links not exceeding 9 mm
(including the chain closure)
215/40R17Chains with links not exceeding 7 mm
(including the chain closure) Remove wheel covers and any integral trim
rin
g bef
ore fittin
g snow chains.
Remove the chains when roads are free of
snow. Driving characteristics worsen, and the
wheels become damaged quickly and may
even be rendered unusable. WARNING
Snow chains should be correctly tightened in
accor d
ance with the manufacturer's instruc- tions. This will prevent the chains coming in-
to cont
act
with the wheel housing.50
