2007 MERCEDES-BENZ GL450 Owner's Manual

552 Technical data
Layout of poly-V-belt drive
GL 320 CDI
1Coolant pump
2Idler pulley
3Automatic belt tensioner
4Power steering pump
5Air conditioning compressor
6Crankshaft
7Idler pulley
8Generator (alternator)GL 450
1Idler pulley
2Idler pulley
3Automatic belt tensioner
4Power steering pump
5Air conditioning compressor
6Crankshaft
7Coolant pump
8Generator (alternator)

553 Technical data
Engine
Engine
ModelGL 320 CDI (164.8221)
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.
GL 450 (164.8711)
Engine642273
Mode of operationDiesel 4-stroke engine4-stroke engine, gasoline injection
No. of cylinders68
Bore3.27 in (83.00 mm)3.66 in (92.90 mm)
Stroke3.62 in (92.00 mm)3.38 in (86.00 mm)
Total piston displacement182cuin (2987cm3)285 cu in (4663 cm3)
Compression ratio17.7:110.7:1
Output acc. to SAE J 1349215 hp/4000 rpm
(160 kW/4000 rpm)335 hp/6000 rpm2
(250 kW/6000 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
Maximum torque acc. to SAE J 1349400 lb-ft/1600 - 2400 rpm
(543 Nm/1600 - 2400 rpm)339 lb-ft/2700 - 5000 rpm
(460 Nm/2700 - 5000 rpm)
Maximum engine speed4500 rpm6500 rpm
Firing order1-4-2-5-3-61-5-4-2-6-3-7-8
Poly-V-belt2035 mm2404 mm

554 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
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 pressure is located on the driver’s
door B-pillar (
page 550). Some vehicles may
have supplemental tire inflation pressure infor-
mation for driving at high speeds (
page 395)
or for vehicle loads less than the maximum
loaded vehicle condition (
page 395). 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
vehicles with winter tires. Winter tires are not
available as standard or optional factory equip-
ment, 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, etc.), equipping your vehicle with win-
ter 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.

555 Technical data
Rims and tires
Same size tires
ModelGL 320 CDI,
GL 450GL 320 CDI*,
GL 450*GL 320 CDI*,
GL 450*
Rims (light alloy)8J x 18 H28.5 J x 19 H28.5 J x 20 H2
Wheel offset2.36 in (53 mm)2.20 in (56 mm)2.20 in (56 mm)
Summer tires1 --275/50 R20 109W
All-season tires1
1Radial-ply tires
265/60 R18 110H M+S275/55 R19 111H M+S-
Winter tires1,2
2Not available as factory equipment.
265/60 R18 110H M+S.265/55 R19 109H M+S .-
All-terrain tires*1,2265/60 R18 110H M+S275/55 R19 111H M+S-

556 Technical data
Rims and tires
Minispare wheel
ModelGL 320 CDI,
GL 450
Rim4.5B x 19 H2
Wheel offset1.58 in (40 mm)
TireT 165/90D-19 119M1
1Must not be used with snow chains.
!Please compare the recommended tire
inflation pressure for your vehicle with the tire
inflation pressure on the yellow label located on
the Minispare wheel rim.
If the tire inflation pressure on the yellow label
on the Minispare wheel rim differs from the
values given in this Operator’s Manual, inflate
the tire to the recommended tire inflation pres-
sure given on the yellow label on the Minispare
wheel rim.
iPlease note that the tire inflation pressure of
the Minispare tire differs from the tire inflation
pressure of the road tires.
Inflate the Minispare tire to approximately 61 psi
(4.2 bar).

557 Technical data
Electrical system
Electrical system
ModelGL 450
Generator (alternator)14 V/180 A
Starter motor12 V/1.7 kW
Battery12 V/95 Ah
Spark plugsNGK PLKR6A
Electrode gap0.031 in (0.8 mm)
Tightening torque15 – 22 lb-ft (20 – 30 Nm)
ModelGL 320 CDI
Generator (alternator)14 V/220 A
Starter motor12 V/2.0 kW
Battery12 V/95 Ah

558 Technical data
Main Dimensions
ModelGL 320 CDI, GL 450
Overall vehicle length200.6 in (5096 mm)
Vehicle width (exterior rear view mirrors folded out)83.7 in (2127 mm)
Vehicle width (exterior rear view mirrors folded in)76.0 in (1930 mm)
Overall vehicle height, depending on set vehicle level72.4 in - 75.6 in (1840 mm - 1920 mm)
Overall vehicle height, depending on set vehicle level
(vehicles with enhanced off-road package*)72.4 in - 76.8 in (1840 mm - 1950 mm)
Wheelbase121.1 in (3075 mm)
Ground clearance, depending on set vehicle level7.8 in - 10.9 in (197 mm - 277 mm)
Ground clearance, depending on set vehicle level
(vehicles with enhanced off-road package*)7.8 in - 12.1 in (197 mm - 307 mm)
Turning circle39.7ft (12.1m)
Track, front65.0 in (1651 mm)
Track, rear65.1 in (1654 mm)

559 Technical data
Weights
Weights
Roof load max.198 lb (90 kg)