Mercedes-Benz E-Class Coupe 2021 Operator's Manual page 336

334 Wheels and tires
at the nearest qualified specialist work‐
shop. The new wheel must have the
correct dimensions.
% The emergency spare wheel is secured in the
emergency spare wheel bag in the trunk.
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 305)
/
R
Tire and Loading Information placard
R
( page 312)
/
Tire pressure table ( page 307)
/
R
Notes on installing tires ( page 324)
/
R