2011 Mercedes-Benz GLK350 GLK350 4MATIC X204 Owners Manual

Warning and indicator lamps in the instrument cluster
201
Problem
Possible causes/consequences andM   Solutions
?
The temperature sensor for the coolant temperature gauge is
faulty.
The red coolant
warning lamp lights up    The coolant temperature is no longer being monitored. There is a
while the engine is
risk of engine damage if the coolant temperature is too high.
running and the coolant
temperature gauge is
at the start of the scale.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions. Do not continue
driving under any circumstances.
X Engage the parking brake.
X Consult a qualified specialist workshop.
?
The coolant level is too low.
The red coolant
If the coolant level is correct, the airflow to the radiator may be
warning lamp comes on  blocked or the electric radiator fan may be malfunctioning.
while the engine is
running.
The coolant is too hot and the engine is no longer being cooled
sufficiently.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Allow the engine and coolant to cool.
X Check the coolant level and add the coolant (Y page 234).
Observe the warning notes.
X If the coolant needs adding more often than usual, have the
engine coolant system checked.
X Make sure that the air supply to the radiator is not blocked, e.g.
by snow, slush or ice.
X At coolant temperatures below 248 ‡ (120 †), continue driving
to the next qualified specialist workshop.
X Avoid subjecting the engine to heavy loads, e.g. driving in
mountainous terrain, and stop-start driving.
?
The coolant has exceeded a temperature of 248 ‡ (120 †). The
airflow to the radiator may be blocked or the coolant level may be
too low.
The red coolant
warning lamp comes on
while the engine is
running. A warning tone
also sounds.
The engine is not being cooled sufficiently and may be damaged.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Allow the engine and coolant to cool.
G Warning
Driving when your engine is overheated can cause some fluids which may have leaked into the
engine compartment to catch fire. You could be seriously burned.
Steam from an overheated engine can cause serious burns which can occur just by opening the
engine hood. Stay away from the engine if you see or hear steam coming from it.
Z
Product Specification
CategoriesMercedes-Benz GL-Class Manuals, Mercedes-Benz Manuals
Tags,
Model Year2011
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