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Practical hints
What to do if ...
Display symbol
Display message
•
Coolant
Stop, turn engine
off
.
374
Possible cause/consequence Possible solution
The coolant is too hot.
Among other possible causes,
the poly-V-belt could be broken.
Stop the vehicle in a safe location or as soon as it is
safe to do so.
Turn off the engine.
Apply the parking brake ( page 59).
Check the poly-V-belt.
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.
If it is intact:
Wait for the message to disappear before restarting
the engine.
Doing otherwise could result in serious engine
damage that is not covered by the Mercedes-Benz
Limited Warranty.
(Continued on next page)
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