Mercedes-Benz R-Class 2008 Owners Manual User Manual

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Operation

Tires and wheels

Tire inflation pressure warnings

If the system detects a significant loss of
tire inflation pressure in one or more than
one tire, a message appears in the multi-
function display.

Example illustration

The respective tire is indicated by a red
rectangle. In addition, a warning signal
sounds.

Restarting Advanced TPMS*

The TPMS usually recognizes new refer-
ence values automatically, for example
when you have

adjusted the tire inflation pressure

changed wheels or tires

mounted new wheels or tires

Warning!

Each tire, including the spare (if provided),

should be checked monthly when cold and

inflated to the inflation pressure recom-

mended by the vehicle manufacturer on the

Tire and Loading Information placard or the

tire inflation pressure label. If your vehicle

has tires of a different size than the size in-

dicated on the Tire and Loading Information

placard or the tire inflation pressure label,

you should determine the proper tire infla-

tion pressure for those tires.

As an added safety feature, your vehicle has

been equipped with a tire pressure monitor-

ing system (TPMS) that illuminates a low tire

pressure telltale when one or more of your

tires are significantly underinflated. Accord-

ingly, when the low tire pressure telltale illu-

minates, you should stop and check your

tires as soon as possible. Driving on a signif-

icantly underinflated tire causes the tire to

overheat and can lead to tire failure.

Underinflation also reduces fuel efficiency

and tire tread life, and may effect the vehi-

cle’s handling and stopping ability. Please

note that the TPMS is not a substitute for

proper tire maintenance, and it is the driv-

er’s responsibility to maintain correct tire

pressure, even if underinflation has not

reached the level to trigger illumination of

the TPMS low tire pressure telltale.

Operating radio transmission equipment

(e.g. wireless headsets, two-way radios) in or
near the vehicle could cause the TPMS to
malfunction.