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STARTING AND DRIVING
436
Overheating in the engine and drive
system
Under special conditions, for example hard driv-
ing in hilly terrain and hot climate, there is a risk
that the engine and drive system may overheat -
in particular with a heavy load.
•
In the event of overheating, the engine's
power may be limited temporarily.
•
Remove any auxiliary lamps from in front of
the grille when driving in hot climates.
•
If the temperature in the engine's cooling
system becomes too high then a warning
symbol is illuminated and the driver display
shows the message
Engine temperature
High temperature Stop safely. Stop the
car in a safe way and allow the engine to run
at idling speed for several minutes and cool
down.
•
If the message
Engine temperature High
temperature Turn off engine or Engine
coolant Level low, turn off engine is
shown, stop the car and switch off the
engine.
•
In the event of overheating in the gearbox, an
alternative gear shift program will be
selected
11
. In addition, a built-in protection
function is activated that, amongst other
things, illuminates a warning symbol and the
driver display shows the message
Transmission warm Reduce speed to
lower temperature or Transmission hot
Stop safely, wait for cooling. Follow the
recommendation given, reduce speed or stop
the car in a safe way and allow the engine to
run at idling speed for several minutes to
enable the gearbox to cool down.
•
If the car overheats, the air conditioning may
be switched off temporarily.
•
Do not turn the engine off immediately you
stop after a hard drive.
NOTE
It is normal for the engine's cooling fan to
operate for a time after the engine has been
switched off.
Symbols in the driver display
Symbol Specification
High engine temperature. Follow
the recommendation given.
Low level, coolant. Follow the rec-
ommendation given.
Gearbox hot/overheated/cooled.
Follow the recommendation given.
Related information
•
Topping up coolant (p. 540)
•
Driving with a trailer (p. 448)
•
Preparations for a long trip (p. 437)
11
Applies to automatic gearbox.
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