Mercedes-Benz A-Class Operator's Manual page 323

Tighten the wheel bolts evenly in a diagonal
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pattern in the order indicated 1
an initial maximum force of 59 lb- (80 Nm).
Tighten the wheel bolts evenly in a diagonal
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pattern in the order indicated 1
the speci ed tightening torque of 96 lb-
(130 Nm).
& W W ARNING
ARNING Risk of accident due to incor-
rect tightening torque
The wheels could come loose if the wheel
bolts or wheel nuts are not tightened to the
prescribed torque.
Ensure that the wheel bolts or wheel
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nuts are tightened to the prescribed
tightening torque.
If you are not sure, do not move the vehi-
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cle. Contact a quali ed specialist work-
shop and have the tightening torque
checked immediately.
Check the tire pressure of the newly installed
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wheel and adjust it if necessary.
%
The following does not apply if the new wheel
to 5 with is an emergency spare wheel.
V V ehicles wit ehicles with tir h tire pr e pressur
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t t em: em: Restart the tire pressure loss warning
to 5 with system ( page 299).
/
V V ehicles wit ehicles with a tir h a tire pr
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t t em: em: Restart the tire pressure monitoring sys-
tem ( page 298).
/
Emergency spar Emerg ency spare wheel e wheel
N N o o t t es on t es on the emerg he emergency spar
& W W ARNING
ARNING Risk of accident caused by
incorrect wheel and tire dimensions
The wheel or tire sizes and the tire type of the
emergency spare wheel or spare wheel and
the wheel to be replaced may di er. The emer-
gency spare wheel or spare wheel can signi -
cantly impair driving characteristics of the
vehicle.
To prevent hazardous situations:
Drive carefully.
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essure loss w e loss war arning sy ning sys- s-
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e pressur essure monit e monitor oring sy ing sys- s-
#
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ency spare wheel e wheel
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Observe the following notes on removing an emer-
gency spare wheel:
R
R
R
Wheels and tires 321
Never install more than one emergency
spare wheel or spare wheel that di ers
in size.
Only use an emergency spare wheel or
spare wheel brie y.
Do not deactivate ESP ® .
Have the emergency spare wheel or
spare wheel of a di erent size replaced
at the nearest quali ed specialist work-
shop. The new wheel must have the cor-
rect dimensions.
The emergency spare wheel is secured in the
emergency spare wheel bag in the trunk.
Before stowing the emergency spare wheel,
make sure there is no air le in the tire.
If necessary, allow the air to escape.
T T o r o release air fr elease air from t om the tir he tire: e: remove the valve
cap of the tire.
Press down the metal insert in the valve using
a pointed object, e.g. a pen.
321