399 Practical hints
Jump starting
Jump starting
If the battery is discharged, the engine can
be started with jumper cables and the
battery of another vehicle. Observe the
following:
Jump starting should only be performed
using the jump-start terminals located
in the engine compartment
(
page 400).
Jump starting should only be performed
when the engine and catalytic
converter 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 an 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.
!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
catalytic converter.
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
attached to a battery.
420 Technical data
Main dimensions, vehicle weights and ratings
Main dimensions
ModelG500G55AMG
Overall vehicle length (inc. spare wheel)185.6 in (4 715 mm)185.6 in (4 715 mm)
Overall vehicle length (inc. spare wheel and brush guard1)
1Brush guard is available on G 55 AMG (U.S. vehicles only).
-186.6 in (4 740 mm)
Overall vehicle width (exterior rear view mirrors folded out)78.9 in (2 005 mm)78.9 in (2 005 mm)
Overall vehicle width (exterior rear view mirrors folded in)71.7 in (1 821 mm)73.0 in (1 855 mm)
Overall vehicle height77.8 in (1 977 mm)77.8 in (1 977 mm)
Wheel base112.2 in (2 850 mm)112.2 in (2 850 mm)
Track, front and rear59.6 in (1 515 mm)59.1 in (1 501 mm)
Ground clearance8.3 in (211 mm)8.3 in (211 mm)
Turning circle43.6ft (13.3m)43.6 ft (13.3 m)
