2003 MERCEDES-BENZ ML320 technical data

274 Technical dataSpare parts serviceThe “Technical data” section provides the
necessary technical data for your vehicle.
Spare parts serviceAll authorized Mercedes-Benz Centers
maintain a stock of original spare parts re-
quired for maintenance and repair work. In
addition, strategically located parts distri-
bution centers provide quick and reliable
parts service.
More than 300 000 different spare parts
for Mercedes-Benz models are available.
Mercedes-Benz original spare parts are
subjected to stringent quality inspections.
Each part has been specifically developed,
manufactured or selected for and adapted
to Mercedes-Benz vehicles.
Therefore, Mercedes-Benz original spare
parts should be installed.
!The use of non-genuine parts and ac-
cessories not authorized by
Mercedes-Benz could damage the vehi-
cle, which is not covered by the
Mercedes-Benz Limited Warranty, or
could compromise the vehicle’s dura-
bility or safety.

275 Technical data
Warranty coverage
Warranty coverage
Your vehicle is covered under the terms of
the “warranties” printed in the Service and
Warranty Information booklet. Your
authorized Mercedes-Benz Light Truck
Center will exchange or repair any defec-
tive parts originally installed on the vehicle
in accordance with the terms of the follow-
ing warranties:

New Vehicle Limited Warranty


Emission System Warranty


Emission Performance Warranty


California, Maine, Massachusetts, and
Vermont Emission Control Systems
WarrantyReplacement parts and accessories are
covered by the Mercedes-Benz Spare Parts
and Accessories warranties, copies of
which are available at any Mercedes-Benz
Center.
Loss of Service and Warranty
Information Booklet
Should you lose your Service and Warranty
Information booklet, have your authorized
Mercedes-Benz Center arrange for a re-
placement. It will be mailed to you.

276 Technical dataIdentification labels
Identification labels1Certification label and Paintwork num-
ber2Engine number (engraved on engine)
3VIN, visible (lower edge of windshield)
4Emission control label
Vacuum line routing for emission con-
trol system
5Information label, California version
iWhen ordering spare parts, please
specify vehicle identification and en-
gine numbers.

277 Technical data
Layout of poly-V-belt drive
Layout of poly-V-belt drive
1Automatic belt tensioner
2Power steering pump
3Air conditioning compressor
4Crankshaft
5Coolant pump
6Generator/Alternator
7Idler pully

278 Technical dataEngine
EngineModel
ML 320 (163.154
1)
1The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Center for the corresponding data of all special bodies and special equipment.
ML 350 (163.157
1)
ML 500 (163.175
1)
ML 55 AMG (163.174
1)
Engine
112
112
113
113
Mode of operation
4-stroke engine, gaso-
line injection
4-stroke engine, gaso-
line injection
4-stroke engine, gaso-
line injection
4-stroke engine, gasoline
injection
No. of cylinders
6
6
8
8
Bore
3.54 in (89.90 mm)
3.81 in (97.00 mm)
3.81 in (97.00 mm)
3.81 in (97.00 mm)
Stroke
3.31 in (84.00 mm)
3.31 in (84.00 mm)
3.31 in (84.00 mm)
3.62 in (92.00 mm)
Total piston displacement
195cu.in. (3199cm
3)
227cu.in. (3724cm
3)
303cu.in. (4966cm
3)
332cu.in. (5439cm
3)
Compression ratio
10:1
10:1
10:1
10.5:1
Output acc. to SAE J 1349
215 hp / 5600 rpm
(160 kW / 5600 rpm)
241 hp / 5600 rpm
(180 kW / 5600 rpm)
288 hp / 5600 rpm
(215 kW / 5600 rpm)
342 hp / 5500 rpm
(255 kW / 5500 rpm)
Maximum torque acc. to
SAE J 1349
233 ft.lb/ 3000 rpm
(315 Nm /3000 rpm)
259ft.lb/3000rpm
(350 Nm /3000 rpm)
325 ft.lb / 2700 rpm
(440 Nm / 2700 rpm)
376 ft.lb / 2800 rpm
(510 Nm / 2800 rpm)
Maximum engine speed
6000 rpm
6000 rpm
6000 rpm
6000 rpm
Firing order
1-4-3-6-2-5
1-4-3-6-2-5
1-5-4-2-6-3-7-8
1-5-4-2-6-3-7-8
Poly-V-belt
7ft 10in (2390mm)
7ft 10in (2390mm)
7 ft 10 in (2390 mm)
7ft 10in (2390mm)

279 Technical data
Rims and tires
Rims and tires
Use only tires and rims which have been
specifically developed for your vehicle and
tested and approved by Mercedes-Benz.
Other tires and rims can have detrimental
effects, such as

poor handling characteristics


increased noise


increased fuel consumption
Rims and tires
!Moreover, tires and rims not approved
by Mercedes-Benz may, under load, ex-
hibit dimensional variations and differ-
ent tire deformation characteristics
under load that could cause them to
come into contact with the vehicle
body or axle parts. Damage to the tires
or the vehicle may be the result.
iFurther information on tires and rims is
available at any authorized
Mercedes-Benz Light Truck Center. A
tire inflation pressure table is located
on the fuel filler cap of the vehicle. The
tire pressure should be checked regu-
larly and should only be adjusted on
cold tires. Follow tire manufacturer’s
maintenance recommendation includ-
ed with vehicle.
Model
ML 320, ML 350
ML 500
ML 55 AMG
Rims (light alloy)
8 J x 17 H2 ET 52
8 ½ J x 17 H2 ET 52
9 J x 18 H2 ET 52
Wheel offset
2.0 in (52 mm)
2.0 in (52 mm)
2.0 in (52 mm)
All season tires (radial-ply-tires)
255/60 R17 106 H
275/55 R17 109 V
285/50 R18 109 W
1
1Must not be used with snow chains.Rims* (light alloy)
8 ½ J x 17 H2 ET 47
8 ½ J x 17 H2 ET 47
-
Wheel offset*
1.85 in (47 mm)
1.85 in (47 mm)
-
All season tires (radial-ply-tires)*
275/55 R17 109 V
275/55 R17 109 V
-

280 Technical dataRims and tiresRims and winter tires*Spare wheelModel
ML 55 AMG
Rims (light alloy)
8 ½ J x 17 H2 ET 52
Wheel offset
2.0 in (52 mm)
All season tires (radial-ply-tires)
275/55 R17 109 H
Model
ML 320, ML 350, ML 500, ML 55 AMG
Rim
4Jx18 H 2 ET0
Wheel offset
0 in (0 mm)
Space-saver tire
T155/90 D18 113M
1
1Must not be used with snow chains.

281 Technical data
Electrical system
Electrical system
Model
ML 320, ML 350
ML 500
ML 55 AMG
Generator (alternator)
14 V/120 A
14 V/150 A
14 V/150 A
Starter motor
12 V/1.7 kW
12 V/1.7 kW
12 V/1.7 kW
Battery
12 V/100 Ah
12 V/100 Ah
12 V/100 Ah
Spark plugs
Bosch F 8 DPP332
Bosch F 8 DPER
Bosch F 8 DPP332
Bosch F 8 DPER
NGK PFR 5-11
Electrode gap
0.039 in (1.0 mm)
0.039 in (1.0 mm)
0.039 in (1.0 mm)
Tightening torque
15 – 22 ft.lb (20 – 30 Nm)
15 – 22 ft.lb (20 – 30 Nm)
15 – 22 ft.lb (20 – 30 Nm)