Lowering The Vehicle; Tightening Torque - Mercedes-Benz 2011 SL550 Roadster Operator's Manual

Flat tire
282
pressure as specified for your vehicle
( Y page 303), decrease tire pressure using
the vent screw on air hose ?.
X
Version 2 only: If the tire inflation pressure
is above the recommended tire inflation
pressure as specified for your vehicle
( Y page 303), decrease tire pressure using
deflate button B.
G
Observe Safety notes, see page 189.
X
Detach the electric air pump.
X
Reinstall collapsible tire valve cap.
X
Version 1 only: Store electrical plug =
and air hose ? behind flap :.
X
Version 2 only: Store electrical plug =
and the air hose back into the pump
housing bottom.
X
Place the electric air pump back in its
designated storage space.
X
Lower the vehicle.

Lowering the vehicle

G
Warning!
Inflate collapsible tire only after the wheel is
properly attached.
Inflate the collapsible tire using the electric
air pump before lowering the vehicle.
X
Lower the vehicle by turning the crank
counterclockwise until the vehicle is
resting fully on its own weight.
X
Pull the jack out of the jack support tube.
X
Tighten the five wheel bolts evenly,
following the diagonal sequence illustrated
(: to A), until all bolts are tight. Observe
a tightening torque of 96 lb-ft (130 Nm).
G
Warning!
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque of
96 lb-ft (130 Nm).
G
Warning!
When turning the wheel wrench to tighten the
wheel bolts, make sure you position your
hands on the wrench in such a way that you
avoid injury to yourself, such as scraping your
hands against the wheel. Make sure turning
the wheel wrench will not scratch or damage
the wheel rim.
X
Before storing the jack in the trunk, crank
back to storage position and fold in the jack
arm.
X
Store the jack and the other vehicle tools
in the designated storage space.
For information on storing the spare wheel
after it has been replaced by a regular road
wheel, see ( Y page 225).
i
The flat tire may be transported in the
trunk when the retractable hardtop is
closed. If available use a protective wrap on
the spare wheel.
i Do not restart the tire inflation pressure
monitor until a full size wheel/tire with
functioning sensor has been placed back
into service on the vehicle.
X
Do not exceed the maximum speed of
50 mph (80 km/h).
Replacing jack support tube cover
X
Slide tongue of cover under the upper edge
of the tube opening.
X
Applying even pressure, press cover until it
snaps into place.