2002 MERCEDES-BENZ ML320 spare

261 Spare wheel, vehicle jack
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index 2Ve h i c l e j a c k
3Screwdriver
4Wheel bolt wrench
The screwdriver is placed inside the wheel bolt wrench
handle.Air pump (ML 55 AMG)
1Air pump
2Storage compartment
The air pump is located behind the space-saver spare
wheel.
The air pump is secured with a strap.
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262 Tires, Wheels
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Wheels
Replace rims or tires with the same designation,
manufacturer and type as shown on the original part.
See your authorized Mercedes-Benz Light Truck Center
for further information.
See your authorized Mercedes-Benz Light Truck Center
for information on tested and recommended rims and
tires for summer and winter operation. They can also
offer advice concerning tire service and purchase.Tire replacement
Front and rear tires should be replaced in sets.
Furthermore – in the event of tire replacement – the
optional regular size spare wheel should be used on the
rear axle. Rims and tires must be of the correct size and
type. For dimensions, see technical data on page 310.
We recommend that you break in new tires for
approximately 60 miles (100 km) at moderate speed.
It is imperative that the wheel mounting bolts be
fastened to a tightening torque of 110 ft.lb. (150 Nm)
whenever wheels are mounted.
For rim and tire specifications, refer to technical data on
page 310.
Wa r n i n g !
Do not mix different tire construction types (i.e.
radial, bias, bias-belted) on your vehicle because
handling may be adversely affected and may result
in loss of control.
Wa r n i n g !
Worn, old tires can cause accidents. If the tire tread
is badly worn, or if the tires have sustained
damage, replace them.When replacing rims, use only genuine
Mercedes-Benz wheel bolts specified for the
particular rim type. Failure to do so can result in
the bolts loosening and possibly an accident.

264 Tires, Wheels
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and controlsOperation DrivingInstrument
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Spare wheel
In the case of a flat tire or break-down, you may
temporarily use the space-saver spare wheel, while
observing the following restrictions:
•Do not exceed vehicle speed of 50 mph (80 km / h).
•Drive to the nearest repair facility to have the flat
tire repaired or replaced as appropriate.
•Do not operate vehicle with more than one spare
wheel mounted.
For rim and tire specifications, refer to “Technical data”
on page 310.
Caution!
Exercise care when removing or installing spare wheel
to prevent personal injury.Space-saver tire (ML 55 AMG only)
Removing spare wheel (space-saver tire):
1. Open buckle of clamp, then remove cover (1).
2. Unscrew the three wheel bolts using wrench
supplied with vehicle tools, and take out space-saver
spare wheel, and remove the air pump from its
compartment.
Wa r n i n g !
The dimensions of the spare wheel are different
from those of the road wheels. As a result, the
vehicle handling characteristics change when
driving with a mounted spare wheel.
P40.10-2441-26

265 Tires, Wheels
Te ch n i c a l
data Instruments
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cluster displayPractical hintsCar care Index Important!
To realize the total crumple zone in case of a rear end
collision, the space-saver spare wheel must be stored in
its holder with the tire deflated. Properly inflate the tire
prior to mounting it on the axle. See page 271 for
detailed instructions.
When storing the space-saver spare wheel in its holder,
tighten the three wheel bolts with a tightening torque of
37 ft.lb. (50 Nm).Space-saver tire (except ML 55 AMG)
Removing spare wheel (space-saver tire):
1. Hold left and right side of cover (1) at bottom and
pull away from bumper (arrows).
P40.10-2439-26

266 Tires, Wheels
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2. Loosen screw (2) using wrench supplied with
vehicle tools, see page 259. The screw (2) remains
in the holder.
3. Lift spare wheel carrier slightly and push lever (3)
to the right using screwdriver supplied with vehicle
tools, swing spare wheel carrier down and pull it out
from under the bumper.
4. Remove space-saver spare wheel.
5. Turn the bayonet lock clockwise to the endstop and
take off. Remove the cover and spare wheel.
Note:
Store bayonet lock and spare wheel cover in cargo area.
P40.10-2440-26

269 Tires, Wheels
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index 6. Place jack on firm ground. Position the jack under
the take-up bracket so that it is always vertical
(plumb-line) as seen from the side, even if the
vehicle is parked on an incline.
7. Open jack further until jack arm end seats firmly in
the take-up bracket and its base sits squarely on the
ground. Jack up the vehicle until the wheel is clear
of the ground. Never start engine while vehicle is
raised.8. Unscrew and remove all wheel bolts. Keep bolt
threads protected from dirt and sand.
9. Remove wheel. Grip wheel from the sides. Keep
hands from beneath the wheels.
Clean contact surfaces of wheel and wheel hub.
Install spare wheel on wheel hub. Insert wheel bolts
and tighten them slightly.
10. Lower vehicle to ground. Remove jack.
Before storing the jack, it should be fully collapsed, with
handle folded in.
For proper storage of jack see page 259.
P40.10-2445-26

270 Tires, Wheels
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Using the wrench, tighten the five bolts evenly,
following the sequence illustrated, until all bolts are
tight. Observe a tightening torque of 110 ft.lb. (150 Nm).
Ensure proper tire pressure.Notes:
The removed road wheel cannot be stored in the
space-saver wheel carrier or inside the storage
compartment in the rear cargo area (ML 55 AMG), but
should be transported in the rear cargo compartment
wrapped in a protective cover supplied with the vehicle.
The protective cover is located in the rear cargo
compartment behind the cover in the right side trim
panel.
Model ML 55 AMG:
Store air pump in its proper location. Close and latch the
spare wheel cover, see page 261.
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P40.10-2446-26
Wa r n i n g !
Always replace wheel bolts that are damaged or
rusted.Never apply oil or grease to wheel bolts.Damaged wheel hub threads should be repaired
immediately.Incorrect mounting bolts or improperly tightened
mounting bolts can cause the wheel to come off.
This could cause an accident. Be sure to use the
correct mounting bolts.

271 Tires, Wheels
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Inflating the space-saver tire (ML 55 AMG only)
1. Remove air pump from compartment behind the
space-saver spare wheel.
2. Open lid (arrow) and pull out filler hose (1) with
pressure gauge and electrical plug (2). Observe
manufacturer’s instructions.
3. Unscrew tire valve cap from space-saver tire valve.
4. Screw filler hose (1) onto space-saver tire valve.5. Plug air pump electrical plug (2) into electrical
outlet in front passenger footwell or rear cargo
compartment.
6. Start the engine and switch on the air pump.
7. Operate air pump (approximately 8 minutes) until
pressure gauge displays 61 psi (4.2 bar).
8. Switch off air pump and turn off the engine.
9. Unscrew filler hose from space-saver tire. Reinstall
tire valve cap.
Note:
Excessive tire air pressure should be released using the
vent screw.
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Wa r n i n g !
When working on the vehicle with the engine
running, always set the parking brake in addition
to shifting the gear selector lever to position “P”.Wa r n i n g !
To prevent possible injury when unscrewing air
pump filler hose from space-saver tire valve after
inflating the tire, use a rag since the tire valve
could be hot.