Mercedes-Benz GLS Owner's Manual page 422

Only tighten wheel bolts or wheel nuts
#
when the vehicle is on the ground.
Observe the instructions and safety notes on
#
"Changing a wheel" ( page 409).
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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.
If the collapsible emergency spare wheel has
#
been fitted, inflate the collapsible emergency
spare wheel ( page 424).
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Lower the vehicle ( page 419).
/
#
Lowering the vehicle after a wheel change
Requirements:
The new wheel has been fitted
R
( page 418).
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Observe the information on tyre pressure
( page 406).
/
Place the ratchet ring spanner onto the hexa‐
#
gon nut of the jack so that the lettering "AB"
is visible.
To lower the vehicle: turn the ratchet ring
#
spanner of the jack anti-clockwise.
Tighten the wheel bolts evenly in a diagonal
#
pattern in the order indicated
a maximum of 80 Nm.
Then tighten the wheel bolts evenly in a diag‐
#
onal pattern in the order indicated
to the specified tightening torque of 150 Nm.
& WARNING Risk of injury through incor‐
rect tightening torque
The wheels could come loose if the wheel
bolts or wheel nuts are not tightened to the
prescribed tightening torque.
Make sure the wheel bolts or wheel
#
nuts are tightened to the prescribed
tightening torque.
If you are not sure, do not move the
#
vehicle. Consult a qualified specialist
workshop and have the tightening tor‐
que checked immediately.
Check the tyre pressure of the newly moun‐
#
ted wheel and adjust accordingly.
% The following does not apply if the new
1 to 5 with
wheel is an emergency spare wheel.
Vehicles with a tyre pressure monitoring
#
system: restart the tyre pressure monitoring
1 to 5
system (
Wheels and tyres 419
page 409).
/