Mercedes-Benz C-Class 2014 Owner's Manual page 435

Tyre pressure
432
Information about driving with an emergency
spare wheel (
Y
Tyre pressure
Tyre pressure specifications
G WARNING
Underinflated or overinflated tyres pose the
following risks:
the tyres may burst, especially as the load
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and vehicle speed increase.
the tyres may wear excessively and/or
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unevenly, which may greatly impair tyre
traction.
the driving characteristics, as well as steer-
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ing and braking, may be greatly impaired.
There is a risk of an accident.
Observe the recommended tyre pressure and
check the tyre pressure of all the tyres includ-
ing the spare wheel:
at least every two weeks
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when the load changes
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before embarking on a longer journey
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for changed operating conditions, e.g. off-
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road driving
If necessary, correct the tyre pressure.
G WARNING
If you fit unsuitable accessories onto tyre
valves, the tyre valves may be overloaded and
malfunction, which can cause tyre pressure
loss. Due to their design, retrofitted tyre pres-
sure monitors keep the tyre valve open. This
can also result in tyre pressure loss. There is a
risk of accident.
Only screw standard valve caps or valve caps
specifically provided by Mercedes-Benz for
your vehicle onto the tyre valve.
WARNING
G
If the tyre pressure drops repeatedly, the
wheel, valve or tyre may be damaged. Tyre
page 461).
pressure that is too low may result in a tyre
blow-out. There is a risk of accident.
Check the tyre for foreign objects.
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Check whether the wheel is losing air or the
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valve is leaking.
If you are unable to rectify the damage, con-
tact a qualified specialist workshop.
H Environmental note
Check the tyre pressure regularly, at least
every 14 days.
You will find a table of tyre pressures for var-
ious operating conditions on the inside of
your vehicle's fuel filler flap.
Operation with an emergency spare
wheel ( page 461).
Y
Operation with a trailer: the applicable
value for the rear tyres is the maximum tyre
pressure value stated in the table inside the
fuel filler flap.
The table inside the fuel filler flap may state
tyre pressures for different load conditions.
These are defined in the table as different
numbers of passengers and amounts of lug-
gage. The actual number of seats may vary;
for more information, please refer to the vehi-
cle's registration documents.
If tyre sizes are not specified, the tyre pres-
sures stated on the tyre pressure information
label apply for all tyres approved for this vehi-
cle.
If a tyre size precedes a tyre pressure, the
following tyre pressure information is only
valid for that tyre size.