Mercedes-Benz Cls 500, Operator'S Manual

Page: 302 / 475

301
Operation
Tires and wheels
Run Flat Indicator
While the vehicle is being driven, the Run
Flat Indicator monitors the set tire inflation
pressures by evaluating each wheel’s rota-
tional speed. This allows the system to de-
tect a significant loss of pressure in a tire.
If a wheel’s rotational speed changes due
to falling tire inflation pressure, you will
see a corresponding warning message in
the multifunction display.
The Run Flat Indicator may function in a
restricted manner or with a delay if:
앫
snow chains are mounted to the
vehicle
앫
winter road conditions prevail
앫
you are driving on a loose surface (e.g.
sand or gravel)
앫
you are driving in a very sporty manner
(involving rapid acceleration or high
speeds in curves)
Warning!
G
When the multifunction display shows the
message
Check tires Then reactivate
Run Flat Indicator
one or more of your
tires is significantly under-inflated. You
should stop and check your tires as soon as
possible, and inflate them to the proper tire
inflation pressure as indicated on the vehi-
cle’s tire information placard. Driving on a
significantly under-inflated tire causes the
tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel efficiency
and tire tread life, and may affect the vehi-
cle’s handling and stopping ability. Each tire,
including the spare, should be checked
monthly when cold and set to the recom-
mended tire inflation pressure as specified
in the vehicle placard and owner’s manual.
i
The recommended tire inflation pres-
sures for your vehicle can be found on
the tire placard located on the driver’s
door B-pillar (
컄
page 291). The tire in-
flation pressures are not listed in the
owner’s manual.