Alternator; Play; Battery - Mercedes-Benz 2009 SL-Class Operator's Manual

Display messages
Ì
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Vehicle status messages in the multifunction display
Possible cause/consequence
The cooling fan for the coolant is malfunc-
tioning.
The battery is no longer charging.
Possible causes:
alternator malfunctioning
R
broken poly-V-belt
R
a malfunction in the electronic system
R
Do not forget that the brake system
requires electrical energy and may be
operating with restricted capability. Con-
siderably greater brake pedal force is
required and the stopping distance is
increased.
Possible solution
X
Observe the coolant temperature gauge 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.
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.
Practical hints
Z
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