Mercedes-Benz GLC 300, Operator'S Manual

Page: 322 / 462

Some tire pressure tables only show the rim
diameter 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 331).
R
Tire and Loading Information placard
(
/
page 324)
R
Maximum tire pressure (
/
page 330)
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
pressure 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, for example. 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 317)
R
Tire pressure table (
/
page 319)
R
Tire and Loading Information placard
(
/
page 324)
Tire pressure monitoring system
Function of the tire pressure monitoring sys‐
tem
&
DANGER Risk of accident due to incor‐
rect tire pressure
Each tire, including the spare (if provided),
should be checked monthly when cold and
then inflated to the inflation pressure recom‐
mended by the vehicle manufacturer on the
vehicle 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 determine the proper tire inflation
pressure for these tires.)
As an added safety feature, your vehicle has
been equipped with a tire pressure monitor‐
ing system (TPMS) that illuminates a low tire
320 Wheels and tires