Alternator; Display; Battery - Mercedes-Benz 2009 CLK-Class Operator's Manual

Practical hints
Vehicle status messages in the multifunction display
Display messages
#
Low Voltage
#
Charge Battery
Low Voltage
#
Switch Off
Consumers
300
Possible cause/consequence
The battery is no longer charging.
Possible causes:
alternator malfunctioning
R
broken poly-V-belt
R
The battery has insufficient voltage.
The battery has insufficient voltage.
Possible solution
If the coolant temperature is below 248‡
(120†), you may continue driving to an
authorized Mercedes-Benz Center.
X
Avoid placing heavy loads on the engine (e.g.
by driving uphill) as well as stop-and-go traffic.
X
Have the fan replaced as soon as possible.
X
Stop immediately in a safe location or as soon
as it is safe to do so and check the poly-V-belt.
X
If it is broken: Do not continue to drive.
Otherwise the engine will overheat due to an
inoperative water pump which may result in
damage to the engine. Contact an authorized
Mercedes-Benz Center.
X
If it is intact: Drive to the nearest authorized
Mercedes-Benz Center immediately. Adjust
driving to be consistent with reduced braking
responsiveness.
X
Start the engine.
X
Turn off unnecessary electrical consumers.