Mercedes-Benz GLC Series Operator's Manual page 348

346 Wheels and tires
at the nearest qualified specialist work‐
shop. The new wheel must have the
correct dimensions.
% The emergency spare wheel is fastened in
the cargo compartment under the cargo
compartment floor.
Observe the following notes on installing an
emergency spare wheel:
Check the tire pressure of the emergency
R
spare wheel installed. Correct the pressure
as necessary.
The maximum permissible speed with an
R
emergency spare wheel installed is 50 mph
(80 km/h).
Do not equip the emergency spare wheel
R
with snow chains.
Replace the emergency spare wheel after six
R
years at the latest, regardless of wear.
% Vehicles with a tire pressure loss warn‐
ing system: If an emergency spare wheel is
installed the tire pressure loss warning sys‐
tem cannot function reliably. Only restart the
system again when the emergency spare
wheel has been replaced with a new wheel.
Vehicles with a tire pressure monitoring
system: If an emergency spare wheel is
installed the tire pressure monitoring system
cannot function reliably. For a few minutes
after an emergency spare wheel is installed,
the system may still display the tire pressure
of the removed wheel. Only restart the sys‐
tem again when the emergency spare wheel
has been replaced with a new wheel.
Be sure to also observe the following further
related subjects:
Notes on tire pressure ( page 317)
/
R
Tire and Loading Information placard
R
( page 324)
/
Tire pressure table ( page 319)
/
R
Notes on installing tires ( page 336)
/
R
Inflating the emergency spare wheel
* NOTE Overheating due to the tire infla‐
tion compressor running too long
Do not run the tire inflation compressor
#
for longer than ten minutes without
interruption.
Requirements:
Comply with the manufacturer's safety notes on
the sticker of the emergency spare wheel and on
the tire inflation compressor.
Remove the sticker with the label 50 mph
#
(80 km/h) from the tire inflation compressor
housing and affix it to the instrument cluster
within the driver's field of vision.
Remove the tire inflation compressor from
#
the storage space under the trunk floor
( page 298).
/