MERCEDES-BENZ R320CDI 2007 R171 Owner's Manual

530 Technical data
Engine
ModelR 320 CDI (251.122)1R 350 (251.165)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.
Engine642272
Mode of operationDiesel 4-stroke engine4-stroke engine, gasoline injection
No. of cylinders66
Bore3.27 in (83.00 mm)3.66 in (92.90 mm)
Stroke3.62 in (92.00 mm)3.39 in (86.00 mm)
Total piston displacement182 cu in (2 987 cm3)213cuin (3498cm3)
Compression ratio16.5:110.7:1
Output acc. to SAE J 1349221 hp/3 800 rpm
(165 kW/3 800 rpm)268 hp/6 000 rpm2
(200 kW/6 000 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
Maximum torque acc. to SAE J 1349398 lb-ft/1 600 - 2 400 rpm
(540 Nm/1 600 - 2 400 rpm)258 lb-ft/2 400 - 5 000 rpm
(350 Nm/2 400 - 5 000 rpm)
Maximum engine speed4 500 rpm6500 rpm
Firing order1-4-2-5-3-61-4-3-6-2-5
Poly-V-belt2 035 mm2404 mm

531 Technical data
Engine
ModelR 500 (251.175)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.
R 63 AMG (251.177)1
Engine113156
Mode of operation4-stroke engine, gasoline injection4-stroke engine, gasoline injection
No. of cylinders88
Bore3.82 in (97.00 mm)4.02 in (102.20 mm)
Stroke3.31 in (84.00 mm)3.72 in (94.60 mm)
Total piston displacement303 cu in (4 966 cm3)379 cu in (6 208 cm3)
Compression ratio10:111.3:1
Output acc. to SAE J 1349302 hp/5 600 rpm2
(225 kW/5 600 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
503 hp/6 800 rpm2
(375 kW/6 800 rpm)
Maximum torque acc. to SAE J 1349339 lb-ft/2 700 - 4 750 rpm
(460 Nm/2 700 - 4 750 rpm)465 lb-ft/5 200 rpm
(630 Nm/5 200 rpm)
Maximum engine speed6300 rpm7 200 rpm
Firing order1-5-4-2-6-3-7-81-5-4-2-6-3-7-8
Poly-V-belt2370 mm2369 mm

532 Technical data
Rims and tires
!Only use tires which have been tested and
approved by Mercedes-Benz. Tires approved by
Mercedes-Benz are developed to provide best
possible performance in conjunction with the
driving safety systems on your vehicle such as
ABS or ESP
®. Tires specially developed for your
vehicle and tested and approved by
Mercedes-Benz can be identified by finding the
following on the tire’s sidewall:

MO = Mercedes-Benz Original equipment
tires
AMG vehicles:
Does not apply to all approved tires on AMG
vehicles. For information on tested and
approved tires for AMG vehicles, contact an
authorized Mercedes-Benz Center.
Using tires other than those approved by
Mercedes-Benz may result in damage that is
not covered by the Mercedes-Benz Limited
Warranty.
!Using tires other than those approved by
Mercedes-Benz can have detrimental effects,
such as

poor handling characteristics

increased noise

increased fuel consumption
Moreover, tires and rims not approved by
Mercedes-Benz may, under load, exhibit dimen-
sional variations and different tire deformation
characteristics 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 placard with the recommended
tire inflation pressures is located on the driver’s
door B-pillar (
page 376). Some vehicles may
have supplemental tire inflation pressure infor-
mation for driving at high speeds (
page 381)
or for vehicle loads less than the maximum
loaded vehicle condition (
page 382). If such
information is provided, it can be found on the
placard located on the inside of the fuel filler
flap.The tire inflation pressure should be checked
regularly and should only be adjusted on cold
tires. Follow tire manufacturer’s maintenance
recommendation included with vehicle.
iThe following pages also list the approved
wheel rim and tire sizes for equipping your vehi-
cles with winter tires. Winter tires are not avail-
able as standard or optional factory equipment,
but can be purchased from an authorized
Mercedes-Benz Light Truck Center.
Depending on vehicle model and the standard or
optional factory-equipped wheel rim/tire
configuration on your vehicle (Appearance
Package, Sport Package etc.), equipping your
vehicle with winter tires approved for your
vehicle model may also require the purchase of
two or four wheel rims of the recommended size
for use with these winter tires. See an authorized
Mercedes-Benz Light Truck Center for more
information.

533 Technical data
Rims and tires
Same size tires
R320CDI
R350R500R320CDI (Sport Package*)
R 350 (Sport Package*)
R 500 (Sport Package*)
Rims (light alloy)7.5 J x 17 H28Jx18H28Jx19H2
Wheel offset2.20 in (56 mm)2.64 in (67 mm)2.64 in (67 mm)
All-season tires1235/65 R17 104H M+S255/55 R18 105H M+S255/50 R19 107H XL (Extra Load) M+S
Winter tires1,2235/65 R17 104H M+S.255/55 R18 105H M+S.255/50 R19 107H XL (Extra Load) M+S.
R320CDI (Sport Package*)
R 350 (Sport Package*)
R 500 (Sport Package*)R63AMG
AMG rims (light alloy)8.5Jx19H28.5Jx20H2
Wheel offset2.52 in (64 mm)2.36 in (60 mm)
All-season tires1255/50 R19 107H XL (Extra Load) M+S –
Summer tires1 –265/45 ZR20 104Y
Winter tires1,2255/50 R19 107H XL (Extra Load) M+S.255/45 R20 105V XL (Extra Load) M+S.
1Radial-ply tires2Not available as factory equipment.

534 Technical data
Rims and tires
Spare wheel (collapsible tire)
R320CDI
R350
R500R63AMG
Rim (steel)6.5 B x 18 H2–
Rim (light alloy)–5.5 B x 19 H2
Wheel offset1.58 in (40 mm)0.51 in (13 mm)
Collapsible tire 1
1Must not be used with snow chains.
195/75-18 106P185/65-19 104P
Recommended tire inflation pressure44 psi (3.0 bar)51 psi (3.5 bar)
!Please 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
collapsible tire to the recommended tire inflation
pressure given on the yellow label on the spare
wheel rim.iPlease note that the tire inflation pressure of
the collapsible tire differs from the tire inflation
pressure of the road tires.

535 Technical data
Electrical system
Electrical system
ModelR350R500R63AMG
Generator (alternator)14 V/150 A14 V/180 A14 V/180 A
Starter motor12 V/1.4 kW12 V/1.7 kW12 V/2.2 kW
Battery12 V/70 Ah12 V/95 Ah12 V/95 Ah
Spark plugsNGK PLKR 6ANGK PFR 5R-11NGK T20036N
Electrode gap0.031 in (0.8 mm)0.031 in (0.8 mm)0.039 in (1.0 mm)
Tightening torque15 - 22 lb-ft (20 - 30 Nm)15 - 22 lb-ft (20 - 30 Nm)15 - 18 lb-ft (20 - 25 Nm)
ModelR320 CDI
Generator (alternator)14 V/220 A
Starter motor12 V/2.2 kW
Battery12 V/95 Ah

536 Technical data
Main Dimensions
ModelR320CDI, R350R500R63AMG
Overall vehicle length203.0 in (5 157 mm)203.0 in (5 157 mm)203.0 in (5 157 mm)
Overall vehicle width (exterior mirrors folded out)85.4 in (2 168 mm)85.4 in (2 168 mm)85.4 in (2 168 mm)
Overall vehicle width (exterior mirrors folded in)75.7 in (1 922 mm)75.7 in (1 922 mm)77.5 in (1 922 mm)
Overall vehicle height1
1Data apply to unladen vehicles with standard equipment. Data may vary in vehicles equipped with AIRMATIC* depending on the selected
damping settings (page 285) and the current vehicle level (page 286).
65.4 in (1 661 mm)65.4 in (1 663 mm)64.3 in (1 634 mm)
Wheelbase126.6 in (3 215 mm)126.6 in (3 215 mm)126.6 in (3 215 mm)
Track, front65.6 in (1 665 mm)64.7 in (1 643 mm)65.6 in (1 665 mm)
Track, rear65.3 in (1 658 mm)64.4 in (1 636 mm)65.0 in (1 652 mm)
Ground clearance15.8 in (148 mm)5.9 in (150 mm)5.9 in (150 mm)
Turning circle40.7 ft (12.4 m)40.7 ft (12.4 m)40.7 ft (12.4 m)

537 Technical data
Weights
Weights
Roof load max.220 lb (100 kg)

538 Technical data
Fuels, coolants, lubricants, etc.
Capacities
Vehicle components and their respective
lubricants must match. Therefore use only
products tested and approved by
Mercedes Benz.
Please refer to the Factory Approved
Service Products pamphlet, or inquire at
your Mercedes-Benz Light Truck Center.
Warning!G
Comply with all valid regulations with re-
spect to handling, storing and disposing of
service fluids. Otherwise you could endan-
ger persons or the environment.
Keep service fluids out of the reach of chil-
dren.
If a service fluid is swallowed, contact a phy-
sician immediately.
ModelCapacityFuels, coolants, lubricants, etc.
Engine with oil filterR320CDI
R350
R500
R63AMG9.5 US qt (9.0 l)
8.5 US qt (8.0 l)
9.0 US qt (8.5 l)
10.1 US qt (9.6 l)Approved engine oils
Automatic transmission9.5 US qt (9.0 l)MB Automatic Transmission Fluid
Transfer case0.53 US qt (0.5 l)MB Automatic Transmission Fluid
Rear axle1.2 US qt (1.1 l)Hypoid gear oil
Front axle1.2 US qt (1.1 l)Hypoid gear oil

539 Technical data
Fuels, coolants, lubricants, etc.
ModelCapacityFuels, coolants, lubricants, etc.
Power steeringapprox. 1.3 US qt (1.2 l)MB Power Steering Fluid
Front wheel hubsapprox. 1.5 oz (43 g) eachHigh temperature roller bearing grease
Brake systemMB Brake Fluid (DOT 4+)
Cooling systemR320CDI
R350
R500
R63AMG10.0 US qt (9.5 l)
10.0 US qt (9.5 l)
11.1 US qt (10.5 l)
12.2 US qt (11.5 l)MB Anticorrosion/Antifreeze
Fuel Tank
including a reserve of
All, except R 63 AMG
R63AMG
21.1 US gal (80.0 l)
approx. 3.4 US gal (13.0 l)
approx. 4.0 US gal (15.0 l)Premium unleaded gasoline:
Minimum Posted Octane 91
(Avg.of96RON/86MON)
Air conditioning systemR-134a refrigerant and special PAG lubricant
oil (never R-12)
Windshield washer and
headlamp cleaning*
system8.0 US qt (7.6 l)MB Windshield Washer Concentrate1
1Use MB Windshield Washer Concentrate “S” and water for temperatures above freezing or MB Windshield Washer Concentrate “S” and commercially available
premixed windshield washer solvent/antifreeze for temperatures below freezing. Follow suggested mixing ratios (page 546).