Mercedes-Benz SL Operator's Manual page 603

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.
Clean the wheel and wheel hub contact
X
surfaces.
Slide the wheel to be mounted onto the
X
alignment bolt and push it on.
Tighten the wheel bolts until they are
X
finger-tight.
Unscrew the alignment bolt.
X
Tighten the last wheel bolt until it is finger-
X
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.
Changing a wheel
Turn the crank of the jack counter-
X
clockwise until the vehicle is once again
standing firmly on the ground.
Place the jack to one side.
X
Tighten the wheel bolts evenly in a
X
crosswise pattern in the sequence
indicated (: to A). The specified
tightening torque is 96 lb-ft (130 Nm).
Turn the jack back to its initial position.
X
Stow the jack and the rest of the vehicle
X
tools in the trunk again.
AMG vehicles and vehicles with AMG
X
equipment: insert the cover into the outer
sill.
Check the tire pressure of the newly
X
installed wheel and adjust it if necessary.
Observe the recommended tire pressure
( page 579).
Y
i
Vehicles with tire pressure loss warning
system: as long as you are driving with an
emergency spare wheel, the tire pressure
loss warning system cannot function
reliably. Only restart the tire pressure loss
warning system when the defective wheel
has been replaced with a new wheel.
i
Vehicles with tire pressure monitor: all
wheels mounted must be equipped with
functioning sensors.
601
Z