Engine
Display messages Possible causes/consequences and M Solutions
+
Check Coolant
Level See
Operator's Manual
The coolant level is too low.
!
Avoid making long journeys with too little coolant in the engine
cooling system. The engine will otherwise be damaged.
X
Add coolant, observing the warning notes before doing so
(Y page 286).
X
If coolant needs to be added more often than usual, have the
engine coolant system checked at a qualified specialist
workshop.
?
The fan motor is faulty.
X
At coolant temperatures below 248 ‡ (120 †) drive to the
nearestqualified specialist workshop.
X
Avoid subjecting the engineto heavy loads, e.g. driving in
mountainous terrain, and stop-and-go traffic.
?
Coolant Too Hot
Stop Vehicle Turn
Engine Off
The coolant is too hot.
Awarning tone also sounds.
G
WARNING
Do notdrive when yourengine is overheated. Thiscan cause some
fluids which may have leaked into the engine compartmentto
catch fire.
Steamfrom the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury.
X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X
Secure the vehicle against rolling away (Y page 158).
X
Waituntil the engine has cooled down.
X
Make sure thatthe air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X
Do not start the engine again until the display message goes out
and the coolant temperature is below 248 ‡ (120 †).
Otherwise, the engine could be damaged.
X
Pay attention to the coolant temperature display.
X
If the temperature increases again, visit a qualified specialist
workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 248 ‡ (120 †).
228
Display messages
On-board computer and displays
English 
