Mercedes-Benz SL 550 BlueEFFICIENCY, Operator'S Manual

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Only use wheel bolts that have been designed
for the wheel and the vehicle. For safety
reasons, Mercedes-Benz recommends that
you only use wheel bolts which have been
approved for Mercedes-Benz vehicles and the
respective wheel.
! AMG vehicles: during removal and
repositioning of the wheel, the wheel rim
can strike the ceramic-brake disc and
damage it. Therefore, take precautions and
get a second person to assist you.
Alternatively, you can use a second
alignment bolt.
! To prevent damage to the paintwork, hold
the wheel securely against the wheel hub
while screwing in the first wheel bolt.
X
Clean the wheel and wheel hub contact
surfaces.
X
Slide the wheel to be mounted onto the
alignment bolt and push it on.
X
Tighten the wheel bolts until they are
finger-tight.
X
Unscrew the alignment bolt.
X
Tighten the last wheel bolt until it is finger-
tight.
Lowering the vehicle
G
WARNING
The wheels could work loose if the wheel nuts
and bolts are not tightened to the specified
tightening torque. There is a risk of accident.
Have the tightening torque immediately
checked at a qualified specialist workshop
after a wheel is changed.
X
Turn the crank of the jack counter-
clockwise until the vehicle is once again
standing firmly on the ground.
X
Place the jack to one side.
X
Tighten the wheel bolts evenly in a
crosswise pattern in the sequence
indicated (
:
to
A
). The specified
tightening torque is 96 lb-ft(130 Nm).
X
Turn the jack back to its initial position.
X
Stow the jack and the rest of the vehicle
tools in the trunk again.
X
AMG vehicles and vehicles with AMG
equipment: insert the cover into the outer
sill.
X
Check the tire pressure of the newly
mounted wheel and adjust it if necessary.
Make sure to observe the recommended
tire pressure (
Y
page 529).
i Vehicles with tire pressure monitor: all
wheels mounted must be equipped with
functioning sensors.
Wheel and tire combinations
General notes
! For safety reasons, Mercedes-Benz
recommends that you only use tires and
wheels which have been approved by
Mercedes-Benz specifically for your
vehicle.
552
Wheel and tire combinations
Wheels and tires