G-Class Owner's Manual - Mercedes G-Class, G-Wagon, G500, G55 ...

Practical advice
Battery
!
Switch off the engine and remove the
key before you loosen or disconnect
the terminal clamps. You may otherwise
destroy electronic components
such as the alternator.
Have the starter battery checked and,
if necessary, replaced every two years
or 20,000 km at a qualified specialist
workshop, e.g. a Mercedes-Benz Service
Centre.
If your vehicle is fitted with TeleAid*,
you must set the telephone to service
mode ( page 237).
Your vehicle is fitted with one battery. It is
located under a cover in the rear footwell.
374
Disconnecting the battery
Risk of accident G
When the battery is disconnected:
you do not have any brake boosting effect.
You will require more effort to
brake and the brake pedal travel will be
longer. If necessary, you will have to depress
the brake pedal with maximum
force
you cannot turn the ignition key
the selector lever is locked in position P
!
Always disconnect the battery in the
order described below. You could otherwise
damage the vehicle electronics.
Nur fuer internen Gebrauch
Apply the parking brake and move the
selector lever to P.
Switch all electrical consumers off.
Turn the key to position 0 and remove
it.
Loosen the negative terminal clamp
and remove it.
The terminal clamp must no longer be
touching the terminal.
Remove the cover from the positive terminal.
Loosen the positive terminal clamp and
remove it.
Remove the breather hose from the
battery.