Coolant Level Too Low - Mercedes-Benz Unimog Operating Instructions Manual

On-board computer event window
140
Engine and cooling
Display messages
5
Engine oil pres‐
sure too low
,
Coolant level too
low
Possible causes/consequences and M Solutions
Supplementary text Û:
engine.
The 5 indicator lamp lights up red in the status area of the on-
board computer as well as in the event window. The engine oil
pressure is too low.
The operating safety of the engine is jeopardised.
X
Stop the vehicle as quickly as possible, paying attention to traf-
fic conditions.
X
Switch off the engine.
X
Apply the parking brake.
X
Check the engine oil level (
( Y page 297).
X
Consult a qualified specialist workshop.
Supplementary text Û:
The * indicator lamp lights up in the status area of the on-board
computer as well as in the event window. As long as the *
indicator lamp is lit, the coolant temperature cannot be displayed.
The coolant level has dropped to approximately 1 litre below the
normal filling level. The operating safety of the engine is jeopar-
dised.
X
Stop the vehicle as quickly as possible, paying attention to traf-
fic conditions.
X
Switch off the engine.
X
Apply the parking brake.
X
Top up the coolant (
X
Have the engine cooling system checked for leaks at a qualified
specialist workshop.
Stop vehicle. Switch off
Y page 125) and top up oil
Top up coolant.
Y page 293).