dimensions as the factory-fitted 12-volt
vehicle battery.
WARNING
A highly explosive mixture of gases is given
off when the 12-volt vehicle battery is be-
ing charged.
·
12-volt vehicle batteries should only be
charged in well-ventilated spaces.
·
Never charge a 12-volt vehicle battery
which is frozen or has been frozen. Dis-
charged 12-volt vehicle batteries can al-
ready freeze at temperatures of around
0°C (+32°F).
·
Always have the 12-volt vehicle battery
replaced if it has ever frozen.
·
Incorrectly connected cables can cause
a short circuit. First connect the positive
cable and then the negative cable.
NOTICE
·
Never connect or disconnect 12-volt vehi-
cle batteries when the electric drive is ac-
tivated. Never use a 12-volt vehicle bat-
tery that does not correspond with the ve-
hicle's specifications. This can damage the
electrical system or electronic compo-
nents, which can cause electrical faults.
·
Never connect equipment that supplies
electric power, such as solar panels or
a battery charger, to the 12-volt socket or
to the cigarette lighter to charge the 12-
volt vehicle battery. This can damage the
vehicle electrical system.
12-volt vehicle batteries may contain
toxic substances such as sulphuric acid
and lead. Dispose of the 12-volt vehicle bat-
tery in accordance with the relevant regula-
tions.
Electrolyte can pollute the environ-
ment. Clean up any service fluid leak-
ages and dispose of them properly.
Troubleshooting
Please refer to , and on page 309
and and at the start of the chapter on
12-volt vehicle battery
The indicator lamp lights up red. The follow-
ing messages can be displayed:
—
Error: 12 V battery not charging
.
Stop vehicle safely!
—
Error: 12 V onboard supply. Stop vehicle safely! Consult ve-
hicle wallet.
Do not drive on! Stop the vehicle as soon
as possible and when safe to do so.
The 12-volt vehicle battery will not be charg-
ed while the vehicle is in motion.
— Switch off any electrical consumers that
are not required.
— Inform a qualified workshop.
— Have the electrical system checked.
There is a fault in the 12-volt vehicle electri-
cal system.
— Inform a qualified workshop.
— Have the electrical system checked.
12-volt vehicle battery
The indicator lamp lights up yellow. The fol-
lowing text message will be displayed:
—
Error: 12 V battery. Unable to restart. Please visit work-
shop.
Fault in the connection between the vehicle
electrical system and the 12-volt vehicle bat-
tery.
If the vehicle’s drive system is deactivated in
this situation it cannot be switched back on
again. Start the vehicle using jump leads if
necessary → page 301 or seek expert assis-
tance.
— Go to a qualified workshop.
— Have the electrical system checked.
12-volt vehicle battery
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