Mercedes-Benz A-Class 2020 Operator's Manual page 326

324 Wheels and tires
Only use an emergency spare wheel or
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spare wheel of a different size briefly.
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.
Observe the following notes on removing an
emergency spare wheel:
Before stowing 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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Stow the deflated emergency spare wheel in
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the emergency spare wheel bag in the cargo
compartment ( page 324).
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Observe the following notes on installing an
emergency spare wheel:
Install the emergency spare wheel when it is
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deflated ( page 321).
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Inflate the emergency spare wheel after
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installing it ( page 325, 326).
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The maximum permissible speed with an emer‐
gency spare wheel installed is 50 mph
(80 km/h).
Do not equip the emergency spare wheel with
snow chains.
Replace the emergency spare wheel after six
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.
Be sure to also observe the following further
related subjects:
Notes on tire pressure ( page 294)
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Tire and Loading Information placard
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( page 302)
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Tire pressure table ( page 296)
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Removing the emergency spare wheel
The deflated emergency spare wheel is secured
in the emergency spare wheel bag in the cargo
compartment.
Observe the information on mounting tires
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( page 314).
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Open the tailgate.
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Detach the securing straps.
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Unhook the retaining spring hooks of the
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securing straps from the brackets.
Remove the emergency spare wheel bag with
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the emergency spare wheel.
Open the emergency spare wheel bag and
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remove the emergency spare wheel.