Mercedes-Benz 2006 E 320 CDI Operator's Manual page 399

Practical hints
What to do if ...
Symbol messages
Display symbol Display messages
#
Low voltage
Switch off
consumers
Visit workshop
398
Possible cause/consequence
The battery has insufficient voltage.
The battery was charged with a battery
charger or jump started.
The battery is no longer charging.
Possible causes:
alternator malfunctioning
broken poly-V-belt
Do not forget that the brake system re-
quires electrical energy and may be oper-
ating with restricted capability.
Considerably greater brake pedal force is
required and the stopping distance is in-
creased.
Possible solution
Turn off unnecessary electrical con-
sumers.
Have the battery checked at a service
station.
Stop immediately in a safe location or
as soon as it is safe to do so and
check the poly-V-belt.
If it is broken:
Do not continue to drive. Otherwise
the engine will overheat due to an in-
operative water pump which may re-
sult in damage to the engine. Notify
an authorized Mercedes-Benz Center.
If it is intact:
Drive immediately to the nearest au-
thorized Mercedes-Benz Center. Ad-
just driving to be consistent with
reduced braking responsiveness.