12 volt vehicle battery and fuses › Using the jump-starting cable 123
Tap on the indicator Engine fault
›
before testing, to clear
air bubbles.
illuminates together with
Stop driving!
›
Black colour - the acid
level is OK.
▶
▶
Stop the engine and seek the help of a specialist
garage.
›
Colourless or pale yel-
low colour - acid level
is too low, the 12 volt
vehicle battery must
be replaced.
Disconnecting, connecting and replacing
CAUTION
Risk of fire!
Requirements for charging a 12 volt vehicle bat-
tery
Do not mix up the connection cables.
▶
✓ Ignition off
Disconnecting
Close all electrically operated windows.
Switch off the ignition and any connected power
consumers.
›
✓ Power consumers switched off
›
12 volt vehicle battery charging
To charge the 12 volt vehicle battery fully, set a
charging current of max. of 0.1 times the battery ca-
pacity.
Disconnect the
nal.
terminal and then the
termi-
›
Connecting
Connect the
termi-
nal of the charger to
the terminal of the
›
Connect the
terminal and then the
terminal.
›
After switching on the ignition, the indicator lights
light up from the isolation box.
12 volt vehicle battery.
Connect the termi-
nal of the charger to
the earth point A .
›
›
If, after a short distance, one of the above-men-
tioned indicator lights does not go out, seek the
help of a specialist garage.
›
Plug the charger's
power cable into the
socket and switch on
the device.
Operate these vehicle functions after disconnect-
ing and connecting the 12 volt vehicle battery
Clock setting » page 49.
Earth point
▶
Window operation » page 25.
▶
After charging, switch off the charger and unplug
the power cable from the socket.
Disconnect the charger terminals from the 12 volt
vehicle battery.
›
›
Changing
The new 12 volt vehicle battery must have the same
parameters as the original battery. Have the replace-
ment carried out by a specialist garage.
WARNING
Risk of explosion!
During charging, hydrogen is released. An explo-
sion can also be caused by sparks, for example,
when disconnecting or loosening the cable con-
nector.
Never charge a frozen or thawed 12 volt vehicle
battery.
Do not carry out the so-called quick charging of
the 12 volt vehicle battery yourself, but have it car-
ried out by a specialist garage.
▶
Using the jump-starting cable
Usage
With the help of jump start cables, a vehicle with a
discharged or defective 12-volt vehicle battery can
be started using the 12-volt vehicle battery of an-
other vehicle.
▶
▶
NOTICE
A flat 12 volt vehicle battery can freeze easily!
Troubleshooting
The 12 volt vehicle battery does not charge while
the engine is running
illuminates together with
Seek the help of a specialist garage.
›
English 
