belt MERCEDES-BENZ M-CLASS 2007 Service Manual

412 OperationVehicle careSeat belts
Only use clear, lukewarm water and
soap.
Upholstery
Using aftermarket seat covers or wearing
clothing that have the tendency to give off
coloring (e.g. when wet, etc.) may cause
the upholstery to become permanently dis-
colored. By lining the seats with a proper
intermediate cover, contact-discoloration
will be prevented.Leather upholstery*
Please not that leather upholstery is a
natural product and is therefore subject to
a natural aging process. Leather uphol-
stery may also react to certain ambient
influences such as high humidity or high
temperature by showing wrinkles for
example.

Wipe leather upholstery with a damp
cloth and dry thoroughly or clean with
Mercedes-Benz approved Leather
Care.
Exercise particular care when cleaning
perforated leather as its underside should
not become wet.
MB Tex upholstery

Use Mercedes-Benz approved Interior
Care onto a soft, lint-free cloth and
apply with light pressure for cleaning
the upholstery.
Wood trims

Dampen cloth using water and use
damp cloth to clean wood trims in your
vehicle.
!
The seat belts must not be treated with
chemical cleaning agents. Do not dry the seat
belts at temperatures above 176°F (80°C) or in
direct sunlight.
Warning!
G
Do not bleach or dye seat belts as this may
severely weaken them. In a crash they may
not be able to provide adequate protection.
Warning!
G
Only use seat or head restraint covers which
have been tested and approved by
Mercedes-Benz for your vehicle model.
Using other seat or head restraint covers
may interfere with or prevent the activation
of the active head restraints. Contact an
authorized Mercedes-Benz Light Truck
Center for availability.
!
Wipe with light pressure to avoid damage to
the upholstery.
!
Do not use solvents like tar remover or
wheel cleaner nor polishes or waxes as these
may be abrasive.
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421 Practical hints
What to do if …
Problem
Possible cause/consequence
Suggested solution
<
The red seat belt telltale comes
on for a maximum of 6 seconds
after starting the engine.
The seat belt telltale reminds you and your
passengers to fasten your seat belts before
driving off.

Fasten your seat belts.
Regardless of whether the seat belts
are fastened or not, the seat belt tell-
tale always comes on and remains lit
for 6 seconds after starting the
engine.
<
You hear a warning chime for a
maximum of 6 seconds after
starting the engine.
You have forgotten to fasten your seat belt.

Fasten your seat belts.
The warning chime stops sounding.
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422 Practical hintsWhat to do if …Problem
Possible cause/consequence
Suggested solution
<
The red seat belt telltale comes
on while the vehicle is standing
still and the engine is running or
during driving.
You and/or your front passenger have
forgotten to fasten your seat belts.

Fasten your seat belts.
The seat belt telltale goes out.
There are items placed on the front passen-
ger seat and therefore the system senses the
front passenger seat as being occupied.

Remove the items from the front pas-
senger seat and put them in a safe
place.
The seat belt telltale goes out.
<
During driving the red seat belt
telltale flashes and you addition-
ally hear an intermittent warning
chime with increasing intensity.
The vehicle’s speed once exceeded 15 mph
(25 km/h) and you and/or your front pas-
senger have forgotten to fasten your seat
belts.

Fasten your seat belts.
The seat belt telltale goes out and the
warning chime stops sounding.
There are items placed on the front passen-
ger seat and therefore the system senses the
front passenger seat as being occupied.

Remove the items from the front pas-
senger seat and put them in a safe
place.
The seat belt telltale goes out and the
warning chime stops sounding.
i
After 60 seconds with an unfastened seat
belt the warning chime stops sounding and the
seat belt telltale illuminates continuously. The seat belt telltale will only go out if both, the
driver’s and front passenger’s seat belt are
fastened, or the vehicle is standing still and a
front door is opened.
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446 Practical hintsWhat to do if …Symbol messagesDisplay symbol
Display messages
Possible cause/consequence
Possible solution
#
The battery is no longer charging.
Possible causes:

alternator malfunctioning


broken poly-V-belt
Do not forget that the brake system
requires electrical energy and may be
operating with restricted capability.
Considerably greater brake pedal
force is required and the stopping dis-
tance is increased.

Stop the vehicle in a safe location or as
soon as it is safe to do so.

Apply the parking brake (
page 65).

Check the poly-V-belt.
If it is broken:

Do not continue to drive. Otherwise the
engine will overheat due to an inoperative
water pump which may result in damage
to the engine. Notify an authorized
Mercedes-Benz Light Truck Center.
If it is intact:

Drive immediately to the nearest
authorized Mercedes-Benz Light Truck
Center. Adjust driving to be consistent
with reduced braking responsiveness.
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450 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
Ï
Coolant level
Stop car, switch engine off
The coolant is too hot.
Among other possible causes
(the cooling fan could be
malfunctioning), the poly-V-belt
could be broken.

Stop the vehicle in safe location or as
soon as it safe to do so.

Apply the parking brake (
page 65).

Turn off the engine.

Check the poly-V-belt.
If it is broken:

Do not continue to drive. Otherwise, the
engine will overheat due to an inoperative
water pump which may result in damage
to the engine. Contact an authorized
Mercedes-Benz Light Truck Center.
If it is intact:

Do not continue to drive the vehicle with
this message displayed. Doing so could
result in serious engine damage that is
not covered by the Mercedes-Benz Limit-
ed Warranty.
(Continued on next page)
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527 Technical data
Parts service
Warranty coverage
Identification labels
Layout of poly-V-belt drive
Engine
Rims and tires
Electrical system
Main Dimensions
Weights
Fuels, coolants, lubricants
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532 Technical dataLayout of poly-V-belt driveML 350
1Idler pulley
2Idler pulley
3Automatic belt tensioner
4Power steering pump
5Air conditioning compressor
6Crankshaft
7Coolant pump
8Generator (alternator)
ML 320 CDI
1Coolant pump
2Idler pulley
3Automatic belt tensioner
4Power steering pump
5Air conditioning compressor
6Crankshaft
7Idler pulley
8Generator (alternator)
ML 500
1Automatic belt tensioner
2Power steering pump
3Air conditioning compressor
4Crankshaft
5Coolant pump
6Generator (alternator)
7Idler pulley
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533 Technical data
Layout of poly-V-belt drive
ML 63 AMG
1Idler pulley
2Idler pulley
3Idler pulley
4Automatic belt tensioner
5Power steering pump
6Air conditioning compressor
7Crankshaft
8Coolant pump
9Generator (alternator)
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534 Technical dataEngineModel
ML 320 CDI (164.122
1)
1The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Light Truck Center for the corresponding data of all special bodies and
special equipment.
ML 350 (164.186
1)
Engine
642
272
Mode of operation
Diesel 4-stroke engine
4-stroke engine, gasoline injection
No. of cylinders
6
6
Bore
3.27 in (83.00 mm)
3.66 in (92.90 mm)
Stroke
3.62 in (92.00 mm)
3.38 in (86.00 mm)
Total piston displacement
182 cu in (2987 cm
3)
213 cu in (3498 cm
3)
Compression ratio
16.5:1
10.7:1
Output acc. to SAE J 1349
221 hp/3800 rpm
(165 kW/3800 rpm)
268 hp/6000 rpm
2
(200 kW/6000 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.Maximum torque acc. to SAE J 1349
398 lb-ft/1600-2400 rpm
(540 Nm/1600-2400 rpm)
258 lb-ft/2400-5000 rpm
(350 Nm/2400-5000 rpm)
Maximum engine speed
4500 rpm
6500 rpm
Firing order
1-4-2-5-3-6
1-4-3-6-2-5
Poly-V-belt
2 035 mm
2 404 mm
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535 Technical data
Engine
Model
ML 500 (164.175
1)
1The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Light Truck Center for the corresponding data of all special bodies and special
equipment.
ML 63 AMG (164.177
1)
Engine
113
156
Mode of operation
4-stroke engine, gasoline injection
4-stroke engine, gasoline injection
No. of cylinders
8
8
Bore
3.82 in (97.00 mm)
4.02 in (102.20 mm)
Stroke
3.31 in (84.00 mm)
3.72 in (94.60 mm)
Total piston displacement
303 cu in (4966 cm
3)
378.8 cu in (6208 cm
3)
Compression ratio
10:1
11.3:1
Output acc. to SAE J 1349
302 hp/5600 rpm
2
(225 kW/5600 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
503 hp/6800 rpm
2
(375 kW/6800 rpm)
Maximum torque acc. to SAE J 1349
339 lb-ft/2700-4750 rpm
(460 Nm/2700-4750 rpm)
465 lb-ft/5200 rpm
(630 Nm/5200 rpm)
Maximum engine speed
6300 rpm
7200 rpm
Firing order
1-5-4-2-6-3-7-8
1-5-4-2-6-3-7-8
Poly-V-belt
2 370 mm
2 369 mm
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