1. Refuel at the next opportunity
→ pa
ge 284.
Depending on equipment: when the
indi-
c
ator lamp lights up, the auxiliary heater
and the fuel-powered supplementary heat-
er switch o automatically.
WARNING
Driving when the fuel level is too low can
lea
d to the vehicle coming to a standstill
in trac, potentially causing accidents
and serious injuries.
·
When the fuel level is too low, the fuel
supply to the engine could be irregular,
especially when driving up or down hills
and inclines.
·
The steering, all driver assist systems
and brake support systems will not
function if the engine “sputters” or
stops completely due to a lack of fuel
or irregular fuel supply.
·
Refuel when the fuel tank is still 1/4 full
in order to avoid breaking down due to
lack of fuel.
NOTICE
Never run the fuel tank completely dry. Ir-
regular fuel supply c
an cause misfiring and
allow unburnt fuel to enter the exhaust
system.
Coolant temperature display
Digital coolant temperature dis-
pl
ay
The coolant temperature display can be
displayed in the secondary displays on the
digital instrument cluster → page 20.
Analogue coolant temperature
displ
ay
Fig. 17 C
oolant temperature display in the
analogue instrument cluster (illustration).
A
Cold range. The engine has not yet
rea
ched operating temperature. Avoid
high engine revs and heavy engine
loads until the engine is warm.
B
Normal range.
C
Warning range. The temperature may
also rise to the hot area when the en-
gine is working hard, especially a
t high
ambient temperatures.
Troubleshooting
and Coolant
T
he red central warning lamp
lights up.
In a
ddition, a text message is shown on the
instrument cluster display.
The coolant level is not correct or there is
a fault in the coolant system.
Do not drive on!
1.
Stop the vehicle, switch o the engine
and allow it to cool down.
2. Check the coolant level → page 322.
3. Seek assistance from a correspondingly
qualified workshop if the warning lamp
does not go out although the coolant
level is adequate.
Coolant temperature display 29
2KF012720AB