Mercedes-Benz CLK-Class Owner's Manual page 255

Operation
Tyres and wheels
The tyre pressure loss warning system is
restricted in its function or delayed if:
snow chains are fitted to your vehicle
road and traffic conditions are affected
by wintry conditions
you are driving over a loose surface
(e.g. sand or gravel)
you adopt a sporty driving style (with
high cornering speed or rapid accelera-
tion)
you are driving with a very heavy or
large trailer
you are driving with roof loads or very
heavy loads
252
G
Risk of accident
The tyre pressure loss warning system does
not warn you of an incorrectly set tyre pres-
sure. The table on the inside of the fuel filler
flap will help you to decide whether the tyre
pressure should be corrected.
The tyre pressure loss warning system is not
a substitute for checking the tyre pressures
on a regular basis since equal pressure loss
in all four tyres cannot be detected by the
tyre pressure loss warning system.
The tyre pressure loss warning system is not
able to warn you of a sudden loss of pres-
sure, e.g. following penetration by a foreign
object. In such cases, stop the vehicle by
braking carefully. Do not make any sudden
steering movements.
Reactivating the tyre pressure loss
warning feature
You must reactivate the tyre pressure loss
warning feature in the following cases, if
you:
have changed the tyre pressure
have changed the wheels or tyres
have fitted new wheels or tyres
Before reactivating, make sure that the
tyre pressure of all four tyres is set cor-
rectly for local driving conditions using
the table on the inside of the fuel filler
flap.
G
Risk of accident
The tyre pressure loss warning system can
only work reliably if you have set the tyre
pressure correctly.
If an incorrect tyre pressure is set, this in-
correct value will be monitored.
Make sure that the ignition is switched
on.