!
The engine should not be operated with the coolant temperature above 248‡
(120†).
Doing so may cause serious damage which is not covered by the Mercedes-Benz Limited
Warranty. Display messages
Possible causes/consequences and
X Solutions? Coolant
Low Stop
Vehicle
Turn
Engine Off The poly-V-belt could be broken.
X
Stop the vehicle immediately as soon as it is safe to do so.
X Turn off the engine immediately.
X 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: Do
not continue to drive the vehicle with this
message displayed. Doing so could result in serious engine
damage that is not covered by the Mercedes-Benz Limited
Warranty.
X Observe the coolant temperature gauge in the instrument
cluster.
X Drive to the nearest authorized Mercedes-Benz Center
immediately. ? The radiator cooling fan is malfunctioning.
X
Observe the coolant temperature gauge in the instrument
cluster.
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. Vehicle status messages in the multifunction display
443
Practical hints
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Display messages
Possible causes/consequences and
X Solutions# 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. 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. 4 Check
Engine
Oil at
Next
Refueling CL 550 4MATIC and CL 63 AMG only:
The engine oil level has dropped to approximately the
minimum level.
X
Check the engine oil level ( Y page 369) and add engine oil
as required (Y page 371).
X If you must add engine oil frequently, have the engine
checked for possible leaks. 4 Check
Engine
Oil Level
(Add 1
quart)
(USA only)
Check
Engine
Oil Level
(Add 1
Liter)
(Canada
only) CL 600 and CL 65 AMG only:
The engine oil level is too low.
X
Add engine oil ( Y page 371) and check the engine oil level
(
Y page 369).
X If you must add engine oil frequently, have the engine
checked for possible leaks. If the message
Check Engine
Oil at Next
Refueling (CL 550 4MATIC and CL 63 AMG
only) or Check Engine Oil Level (Add 1
quart) (Canada: 1 Liter) (CL 600 and CL
65 AMG) appears while the engine is running
and at operating temperature, the engine oil level has dropped to approximately the
minimum level.
The message will be stored in the vehicle
status message memory after you have
cleared it from the multifunction display.444
Vehicle status messages in the multifunction display
Practical hints
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