Emergency Spare Wheel - Mercedes-Benz A-Class 2021 Operator's Manual

Emergency spare wheel

Notes on the emergency spare wheel
& WARNING Risk of accident caused by
incorrect wheel and tire dimensions
The wheel or tire size and the tire type of the
emergency spare wheel or spare wheel and
the wheel to be replaced may differ. The
emergency spare wheel or spare wheel can
significantly impair driving characteristics of
the vehicle.
To prevent hazardous situations:
Adapt your driving style accordingly and
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drive carefully.
Never install more than one emergency
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spare wheel or spare wheel that differs
in size.
Only use an emergency spare wheel or
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spare wheel of a different size briefly.
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Do not switch off ESP .
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Have the emergency spare wheel or
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spare wheel of a different size replaced
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 removing an
emergency spare wheel:
Before storing the emergency spare wheel,
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make sure there is no air left in the tire.
If necessary, allow the air to escape.
To release air from the tire: remove the
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valve cap of the tire.
Press down the metal insert in the valve
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using a pointed object, e.g. a pen.
Screw the valve cap onto the valve.
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Observe the following notes on installing an
emergency spare wheel:
Check the tire pressure of the emergency
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spare wheel installed. Correct the pressure
as necessary.
Wheels and tires 317
The maximum permissible speed with an
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emergency spare wheel installed is 50 mph
(80 km/h).
Do not equip the emergency spare wheel
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with snow chains.
Replace the emergency spare wheel after six
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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.