Operation Manual

Engine
Display messages
Possible causes/consequences and MM Solutions
+
Check CoolantCheck Coolant
Level See Opera‐Level See Opera‐
tor's Manualtor'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 289).
X
If coolant needs to be added more often than usual, have the
engine coolant system checked at a qualified specialist work-
shop.
?
The fan motor is faulty.
X
At coolant temperatures below 248 ‡ (120 †), drive to the
nearest qualified specialist workshop.
X
Avoid subjecting the engine to heavy loads, e.g. driving in moun-
tainous terrain, and stop-and-go traffic.
?
Coolant Too HotCoolant Too Hot
Stop Vehicle TurnStop Vehicle Turn
Engine OffEngine Off
The coolant is too hot.
A warning tone also sounds.
G
WARNING
Do not drive when your engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to
catch fire.
Steam from 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 160).
X
Wait until the engine has cooled down.
X
Make sure that the 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 †). Other-
wise, 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 †).
Display messages
233
On-board computer and displays
Z