Mercedes-Benz 2009 CLK-Class Operator's Manual page 301

Display messages
Coolant
Ì
Stop vehicle, turn
engine off.
Ì
Vehicle status messages in the multifunction display
Possible cause/consequence
The poly-V-belt could be broken.
The cooling fan for the coolant is
malfunctioning.
Possible solution
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 indicator in
the instrument cluster.
X
Drive to the nearest authorized Mercedes-Benz
Center immediately.
X
Observe the coolant temperature indicator in
the instrument cluster.
Practical hints
Z
299