Mercedes-Benz GLS 2023, Operator'S Manual

Page: 380 / 538

Some tire pressure tables only show the rim diam-
eter instead of the complete tire size, e.g. R18.
The rim diameter is part of the tire size and can
be found on the tire side wall (
/
page 388).
R
Tire and loading information placard
(
/
page 380)
R
Maximum tire pressure (
/
page 387)
Checking the tire pressure manually
#
Read the tire pressure recommended for the
current operating conditions from the tire and
loading information placard or the tire pres-
sure table. Observe the notes on tire pressure.
#
Remove the valve cap of the tire to be
checked.
#
Press the tire pressure gauge securely onto
the valve.
#
Read the tire pressure.
#
If the tire pressure is lower than the recom-
mended value, increase the tire pressure to
the recommended value.
#
If the tire pressure is higher than the recom-
mended value, release air. To do so, press
down the metal pin in the valve, e.g. using the
tip of a pen. Then check the tire pressure
again using the tire pressure gauge.
#
Screw the valve cap onto the valve.
Further related subjects:
R
Notes on tire pressure (
/
page 375)
R
Tire pressure table (
/
page 377)
R
Tire and loading information placard
(
/
page 380)
Tire pressure monitoring system
Function of the tire pressure monitoring system
&
DANGER Risk of accident due to incorrect
tire pressure
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recommen-
ded by the vehicle manufacturer on the vehi-
cle placard or tire inflation pressure label. (If
your vehicle has tires of a different size than
the size indicated on the vehicle placard or
tire inflation pressure label, you should deter-
mine the proper tire inflation pressure for
those tires.)
As an added safety feature, your vehicle has
been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire pres-
sure telltale when one or more of your tires is
significantly under-inflated. Accordingly, when
378 Wheels and tires