Mercedes-Benz G-Class, Owner'S Manual

Page: 165 / 208

Problems with the 24 V batteries
Problem Possible causes/consequences and
M
Solutions
5
The red warning
lamp for the 24 V
batteries in the
control panel
lights up while
the engine is
running. The batteries are no longer being charged. Possible causes:
R
faulty alternator
R
torn poly-V-belt
R
wiring fault
R
an electronics fault
X
Stop.
X
Check the poly-V-belt.
X
If it is torn: do not drive on.
X
Consult a qualified specialist workshop.
X If it is OK: have the vehicle checked immediately at a qualified
specialist workshop.
Jump-starting
Emergency start facility
! After starting with the emergency start
facility, all three batteries must be sepa-
rately charged with a battery charger.
The cause of the 12 V battery in the centre
console discharging must be remedied.
If the 12 V battery in the centre console is
discharged, you can start the vehicle using
the emergency start facility.
X
To start with the emergency start
facility: switch off all power consumers.
X
Switch on the battery main switch
(
Y
page 87).
X
Press button
:
and hold it down.
X
Start the engine (
Y
page 88).
X
Keep button
:
pressed for a further five
seconds after the engine has started.
i If starting using the emergency start
facility is no longer possible, another vehi-
cle can be used to provide jump-start assis-
tance.
Jump-starting
Important safety notes
G
WARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with the skin, eyes or clothing.
Do not inhale any battery gases. Do not lean
over the battery. Keep children away from
batteries. Wash battery acid immediately with
water and seek medical attention.
G
WARNING
During charging and jump-starting, explosive
gases can escape from the battery. There is a
risk of an explosion.
Jump-starting
163
Breakdown assistance
Z