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& WARNING Risk of injury from tightening
wheel bolts and nuts
If you tighten the wheel bolts or wheel nuts
when the vehicle is raised, the jack could tip.
Only tighten wheel bolts or wheel nuts
#
when the vehicle is on the ground.
Be sure to observe the instructions and
#
safety notes on "Changing a wheel"
(
page 336).
/
For safety reasons, only use wheel bolts
#
which have been approved by Mercedes-
Benz and for the wheel in question.
Tighten the wheel bolts evenly in a diagonal
#
pattern in the order indicated until they are
finger-tight.
Unscrew and remove the centring pin.
#
Tighten the last wheel bolt until it is finger-
#
tight.
Lower the vehicle (
page 345).
/
#
Lowering the vehicle after a wheel change
Requirements:
The new wheel has been fitted
R
(
page 344).
/
To lower the vehicle: place the ratchet onto
#
the hexagon nut of the jack so that the let‐
ters "AB" are visible and turn the ratchet of
the jack to the left.
Tighten the wheel bolts evenly in a diagonal
#
pattern in the order indicated
an initial maximum force of 80 Nm.
Tighten the wheel bolts evenly in a diagonal
#
pattern in the order indicated
the specified tightening torque of 150 Nm.
& WARNING 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
#
nuts are tightened to the prescribed
tightening torque.
If you are not sure, do not move the
#
vehicle. Contact a qualified specialist
workshop and have the tightening tor‐
que checked immediately.
Check the tyre pressure of the newly fitted
#
wheel and adjust it if necessary.
Vehicles with tyre pressure loss warning
#
system: restart the tyre pressure loss warn‐
1
to
5
with
ing system (
Exception: the new wheel is an emergency
spare wheel.
Wheels and tyres 345
1
to
5
to
page 336).
/
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