Mercedes-Benz 2011 GLK-Class Operator's Manual page 189

G
Warning
Do not spill antifreeze on hot engine parts. Antifreeze contains ethylene glycol which may burn
if it comes into contact with hot engine parts. You could be seriously burned.
!
The coolant level is too low. Avoid making long journeys with too little coolant in the cooling
system. The engine will otherwise be damaged.
The display messages and the corresponding symbol that indicate that the coolant level is
too low must not be ignored.
Display messages
?
Coolant Level Low
Stop Vehicle Turn
Engine Off
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.
Stop the vehicle in a safe location away from other traffic. Turn off the engine, get out of the
vehicle and do not stand near the vehicle until the engine has cooled down.
Possible causes/consequences and M Solutions
The coolant is too hot.
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X
Make sure that the air supply to the radiator is not blocked, e.g.
by snow, slush or ice.
X
Wait until the display message disappears before restarting the
engine. There is otherwise a risk of engine damage.
X
Pay attention to the coolant temperature display.
X
If the temperature increases again, visit a qualified specialist
workshop immediately.
The poly-V-belt may have torn.
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X
Open the hood.
X
Check whether the poly-V-belt is torn.
If the poly-V-belt is torn:
!
Do not continue driving. The engine could otherwise overheat.
X
Consult a qualified specialist workshop.
If the poly-V-belt is OK:
X
Wait until the display message disappears before restarting the
engine. There is otherwise a risk of engine damage.
X
Pay attention to the coolant temperature display.
X
Visit a qualified specialist workshop.
Display messages
187
Z