Display messages
Possible causes/consequences and
M
Solutions
+
Top up coolant See
Owner'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
Top up the coolant, making sure to observe the warning notes
(
Y
page 329).
X
If you have to top up the coolant more frequently, have the cooling
system checked at a qualified specialist workshop.
¸
Replace air cleaner
The engine air filter is dirty and must be replaced.
X
Visit a qualified specialist workshop.
4
Check eng. oil
level when next
refuelling
A warning tone also sounds. On your vehicle with engine power output
above 100 kW, the oil level has dropped below the minimum level.
X
Check the oil level, at the latest when next refuelling (
Y
page 327).
X
If necessary, top up the engine oil (
Y
page 328).
X
To confirm the oil level check: press
a
.
X
Have the engine checked at a qualified specialist workshop if the
engine oil needs topping up more often than usual.
!
Avoid long journeys when there is too little coolant in the cooling
system. Otherwise the engine will be damaged.
4
Manually check oil
level
Reminder to check the oil level.
X
Check the oil level, at the latest when next refuelling (
Y
page 327).
X
If necessary, top up the engine oil (
Y
page 328).
!
Avoid long journeys when there is too little coolant in the cooling
system. Otherwise the engine will be damaged.
4
Engine oil level:
stop switch engine
off
The oil level is too low. There is a risk of engine damage.
X
Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the engine.
X
Secure the vehicle against rolling away (
Y
page 177).
X
Check the oil level (
Y
page 327).
X
If necessary, top up the engine oil (
Y
page 328).
æ
Reserve fuel level
The fuel level has dropped to the reserve range.
Operation of the auxiliary heating is deactivated if the fuel level drops
into the reserve range.
X
Refuel at the nearest filling station.
Ï
There is very little fuel in the fuel tank.
X
Refuel at the nearest filling station without fail.
272
Display messages (vehicles with steering wheel buttons)
On-board computer and displays
