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Problem
D
The red coolant warning lamp
comes on when the engine is
running.
D
The red coolant warning lamp
comes on while driving and you
hear a warning sound.
l
The red distance warning lamp
comes on while driving.
Warning!
Driving when your engine is badly overheat-
ed can cause some fluids which may have
leaked into the engine compartment to
Possible cause/consequence
There is insufficient coolant in the reservoir.
If this warning lamp comes on frequently,
there is a leak in the cooling system.
If the coolant level is correct, the electric
radiator fan may be broken.
The coolant temperature has exceeded
266°F (130°C).
You are too close to the vehicle in front of you
to maintain selected speed.
G
catch fire. You could be seriously burned.
Steam from an overheated engine can cause
serious burns and can occur just by opening
the engine hood. Stay away from the engine
if you see or hear steam coming from it.
Practical hints
What to do if ...
Suggested solution
Immediately add coolant to prevent
engine from overheating
( page 297).
Have the cooling system checked.
If the coolant temperature is below
266°F (130°C), you can continue
driving to the nearest authorized
Mercedes-Benz Center.
Avoid high engine loads (e.g. driving
uphill) and stop-and-go driving.
Stop as soon as possible and allow
the engine and coolant to cool down.
Apply the brakes immediately to in-
crease the following distance.
Turn off the engine, get out of the vehicle
and do not stand near the vehicle until the
engine has cooled down.
357
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