Mercedes-Benz 2009 CLS 550, Operator'S Manual

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Vehicle status messages in the multifunction display
281
Display messages Possible cause/consequence Possible solution
Ì The cooling fan for the coolant is malfunc-
tioning.
X
Observe the coolant temperature indicator in
the instrument cluster.
If the coolant temperature is under 248‡
(120†), you may continue driving to an author-
ized 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.
#
The battery is no longer charging.
Possible causes:
R
alternator malfunctioning
R
broken poly-V-belt
R
a malfunction in the electronic system
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. Oth-
erwise the engine will overheat due to an inop-
erative 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.
#
Low Voltage
Start Engine
The battery has insufficient voltage. X Start the engine.
Practical hints
Z