Displa
Display messag
y messages
P
es
Possible causes/conseq
ossible causes/consequences and
uences and
M
M
Solutions
Solutions
#
Let the engine cool down before opening the cap.
#
When opening the cap, wear protective gloves and safety
glasses.
#
Open the cap slowly to release pressure.
#
Wait until the engine has cooled down.
#
Ensure that the air supply to the engine radiator is not obstructed.
#
Avoiding high engine loads, continue to the nearest quali ed spe-
cialist workshop. Ensure that the coolant temperature display
remains below 248°F (120°C).
?
Check Coolant Level See
Operator's Manual
* The coolant level is too low.
&
W
WARNING
ARNING Risk of scalding from hot coolant
The engine cooling system is pressurized, particularly when the
engine is warm. If you open the cap, you could be scalded by hot
coolant spraying out.
#
Let the engine cool down before opening the cap.
#
When opening the cap, wear protective gloves and safety
glasses.
#
Open the cap slowly to release pressure.
*
NNOOTE
TE Engine damage due to insu cient coolant
#
Avoid long journeys with insu cient coolant.
#
Top up coolant (
/
page 212).
Regeneration Not Possi-
ble
* Not all conditions have been met for regeneration of the diesel partic-
ulate lter (
/
page 116).
#
Continue driving as normal until all conditions have been met for
regeneration of the diesel particulate lter.
The load condition of the diesel particulate lter is over 50% and the
message still appears on the instrument cluster.
#
Consult a quali ed specialist workshop.
DEF (Diesel Exhaus
DEF (Diesel Exhaust Fluid)
t Fluid)
Displa
Display messag
y messages
P
es
Possible causes/conseq
ossible causes/consequences and
uences and
M
M
Solutions
Solutions
å
Refill Additive See Opera-
tor's Manual
* In addition, the yellow
å
DEF indicator lamp lights up on the
instrument cluster and a warning tone sounds.
The DEF supply has fallen below the rst warning threshold.
#
Add at least 2.5 gal (9.5 l) of DEF (
/
page 131).
The
å
DEF indicator lamp only disappears when the vehicle is
stationary, at the latest a er 20 seconds, as soon as you switch
on the ignition or start the engine a er topping up.
Display messages and warning and indicator lamps 295
295
