254 T ir es and w he e l s
maximum capacity weight and the tires that
were on your vehicle at the time it was man-
ufactured. For recommended t ire pressures
for normal load conditions, please see chap-
ter
r:=>page 251.
- Turn the valve stem cap counter -clockwise
to remove it from the tire valve.
- Place the air pressure ga uge on the valve.
- The tire pressures should only be checked
and adjusted when the tires are cold. The
s light ly raised pressures of warm tires must
not be reduced.
- Adjust the tire pressure to the load you are
carrying.
- Reinsta ll the valve stem cap on the valve.
When should I check th e tire pressure?
The correct tire pressure is especially impor-
tant at high speeds. The pressure sho uld
there fore be checked at least once a month
and a lways before starting a journey. Do not
forget to check the tire pressure for the spare
wheel.
When should I adjust the ti re pressures?
Adjust the tire pressu re to the load you are
carrying. After changing a wheel
or replacing
wheels you have to adjust the tire pressures
on all wheels . In addition, you must then
store the new tire pressures in the t ire pres-
sure mon itor ing system*
r=> page 267.
A WARNING
Incorrect tire pressures and/or underinfla-
tion can lead sudden tire failure, loss of
contro l, collision, ser ious persona l injury
or even death.
- When the warning symbol
RI] appears in
the instrument cluster, stop and inspect
the tires.
- Incorrect tire pressure and/or underinfla-
t ion can cause increased t ire wear and
can affect the handling of the veh icle and
stopp ing ability.
- Incorrect tire pressures and/or underin-
flation can also lead to sudden tire fa il-
ure, including a blowout and sudden de-
flation, causing loss of vehicle control.
- The driver is responsible for the correct
tire pressures for all tires on the vehicle.
The applicable pressure values are locat-
ed on a sticker on the dr iver's s ide B-pil-
lar.
- Only when all tires on the vehicle are fil-
led to the correct pressure, the t ire pres -
sure mon itor ing system* can work cor-
rectly.
- The use of incorrect ti re pressu re values
can lead to acc idents or other damage .
Therefore it is essential that the drive r
observe the spec ified t ire press ure values
for the t ires and the correct pressures for
the function of the ti re press ure monitor-
ing system*.
- Always inflate tires to the recommended
and correct t ire press ure before driving
off.
- Driving with underinflated tires bend
mo re, letting them get too hot resulting
in tread separation, sudden tire failure
and loss of control.
- Excessive speed and/overloading can
cause heat build-up, sudden tire failure
and loss of control.
- If the tire pressure is too low or too high,
the t ires will wear prematurely and the
veh icle will not handle well.
- If the tire is not flat and you do not have
to change a wheel immediately, drive at
reduced speed to the nearest service sta-
tion to check the t ire pressure and add
air as requ ired .
@ Note
Driving without valve stem caps can cause
damage to the tire valves. To prevent this,
a lways make sure that factory installed
valve stem caps on all wheels are securely
mounted on the valve .
@ For the sake of the environment
Underinflated tires will also increase the
fuel consumption.
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