538 Practical hints
Jump starting
If the battery is discharged, the engine can
be started with jumper cables and the bat-
tery of another vehicle. Observe the follow-
ing:
Jump starting should only be performed
using the jump-start contacts located
in the engine compartment
(
page 539).
Jump starting should only be performed
when the engine and catalytic
converter
1 are cold.
Do not start the engine if the battery is
frozen. Let the battery thaw out first.
Only jump start from batteries with the
same voltage rating (12 V). Jump start-
ing with a higher voltage battery could
damage the vehicle’s electrical system,
which will not be covered by the
Mercedes-Benz Limited Warranty.
Only use jumper cables with sufficient
cross-section and insulated terminal
clamps.
Always make sure the jumper cables
are not on or near pulleys, fans or other
parts that move when the engine is
started or running.
Warning!G
Failure to follow these directions will cause
damage to the electronic components, and
can lead to a battery explosion and severe
injury or death.
Never lean over batteries while connecting
or jump starting, you might get injured.
Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water, and seek
medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and very explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking, etc.
Attempting to jump start a frozen battery
can result in it exploding, causing personal
injury.
Read all instructions before proceeding.
1Vehicles with gasoline engine only.
!Do not tow-start the vehicle.
!Avoid repeated and lengthy starting
attempts.
Do not attempt to start the engine using a
battery quick charge unit.
If the engine does not run after several unsuc-
cessful starting attempts, have it checked at the
nearest authorized Mercedes-Benz Light Truck
Center.
Excessive unburned fuel generated by repeated
failed starting attempts may damage the catalyt-
ic converter
1.
Make sure the jumper cables do not have loose
or missing insulation.
Make sure the cable clamps do not touch any
other metal part while the other end is still at-
tached to a battery.
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)
