2010 MERCEDES-BENZ GL450 Spare tire

Do not tighten the wheel bolts when the
vehicle is raised. Otherwise the vehicle could
fall off the jack.
Wheel bolt : must be used for 19", 20", and
21" light alloy wheels. Wheel bolt ; must be
used for the Minispare wheel. The wheel bolts
for the Minispare wheel are located in vehicle
tool kit.
! Wheel bolts ; must be used when
mounting the Minispare wheel. The use of
any wheel bolts other than wheel bolts ;
for the Minispare wheel will damage the
vehicle’s brakes.
GWarning!
Make sure to use the original length wheel
bolts when remounting the original wheel
after it has been repaired.
XClean contact surfaces of wheel and wheel
hub.
! To avoid paint damage, place wheel flat
against hub and hold it there while
installing first wheel bolt.
XGuide the spare wheel onto the alignment
bolt and push it on.
XInsert the wheel bolts and tighten them
slightly.
XUnscrew the alignment bolt.XInstall the last wheel bolt and tighten it
slightly.
Lowering the vehicle
XAttach ratchet to vehicle jack so that the
word DOWN can be seen.
Lower the vehicle until the vehicle is resting
fully on its own weight:
XTurn ratchet in direction DOWN.XRemove the jack.XTighten the five wheel bolts evenly,
following the diagonal sequence illustrated
(: to A), until all bolts are tight. Observe
a tightening torque of 110 lb-ft (150 Nm).
344Flat tirePractical hints
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GWarning!
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque of
110 lb-ft (150 Nm).
XFully collapse the jack to storage position,
see ( Y page 286).XStore 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after it has been replaced by a regular road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 286).
i The damaged road wheel cannot be
stored in the spare wheel well under the
cargo compartment floor. It should be
transported in the cargo compartment
wrapped in a protective wrap.
i USA only:
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.
MOExtended system
The MOExtended system allows you to
continue driving your vehicle even if there is
a total loss of pressure in one or more tires.
You may only use the MOExtended system in
conjunction with the tire pressure loss
warning system ( Y page 237) or the
Advanced TPMS ( Y page 239).
The maximum distance in emergency mode
depends on the vehicle’s load. It is 50 miles
(80 km) if the vehicle is partially loaded and
18 miles (30 km) if the vehicle is fully loaded.
The point at which the maximum driving
distance in emergency mode begins is when
the warning message appears in the
multifunction display indicating that there is
a loss of tire inflation pressure.
XDo not exceed the maximum speed of
50 mph (80 km/h).GWarning!
In emergency mode, your vehicle’s driving
characteristics are diminished in such
situations as:
R driving around curves
R while braking
R while accelerating rapidly
Therefore, your driving style must be adapted
accordingly. Avoid abrupt steering and driving
maneuvers, as well as driving over obstacles
(road curbs, potholes, or off-road areas). This
is especially important if the vehicle is heavily
loaded.
The emergency driving distance that can be
achieved greatly depends on the demands
placed on the vehicle. Depending on speed,
load, driving maneuvers, road conditions,
outside temperature, etc., the distance can be
significantly shorter or, if the vehicle is driven
cautiously, somewhat longer.
Do not continue driving in emergency mode if
R you notice knocking sounds
R the vehicle starts to shake
R smoke develops and you smell rubber
R ESP ®
is intervening continuously
R you notice tears on the tire sidewalls
After driving in emergency mode, you must
have the rims inspected by an authorized
Mercedes-Benz Center to check if they are
suitable for further use. The failed tire must
be replaced in any case.
When replacing individual or all tires on the
vehicle, make sure only tires marked with
“MOExtended” are mounted in the size
specified for your vehicle ( Y page 365).
Bleeding the fuel system (diesel
engine only)
Driving the vehicle until the fuel tank is empty
is not recommended. Otherwise, air may be
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Spare wheel
! Compare the recommended tire inflation pressure for your vehicle with the tire inflation
pressure on the yellow label located on the spare wheel rim.
If the tire inflation pressure on the yellow label on the spare wheel rim differs from the values
given in this Operator’s Manual, inflate the tire to the recommended tire inflation pressure
given on the yellow label on the spare wheel rim.
i Please note that the tire inflation pressure of the spare wheel differs from the tire inflation
pressure of the road tires.
i The GL 350 BlueTEC does not have a spare wheel.ModelGL 450
GL 550Rim4.5 B x 19 H2Wheel offset1.58 in (40 mm)Minispare tire 43T 165/90 D19 119M
or
T 165/90 R19 119MRecommended tire inflation pressure61 psi (4.2 bar)Fuels, coolants, lubricants, etc.
Capacities
Vehicle components and their respective
lubricants must match. Therefore only use
products tested and approved by Mercedes-
Benz.
For information on tested and approved
products, contact an authorized Mercedes-
Benz Center or visit www.mbusa.com (USA
only).
GWarning!
Comply with all valid regulations with respect
to handling, storing, and disposing of service
fluids. Otherwise you could endanger persons
or the environment.
Keep service fluids out of the reach of
children.
For health reasons, you should prevent
service fluids from coming into direct contact
with your skin or clothing.
If a service fluid is swallowed, contact a
physician immediately.43 Must not be used with snow chains.368Fuels, coolants, lubricants, etc.Technical data
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