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Problem
Possible causes/consequences and MM Solutions
The engine is not run-
ning smoothly and is
misfiring.
There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.
X
Only depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic con-
verter and damage it.
X
Have the cause rectified immediately at a qualified specialist
workshop.
The coolant tempera-
ture display shows a
value above 248 ‡
(120 †). The coolant
warning lamp may also
be on and a warning
tone may sound.
The coolant level is too low. The coolant is too hot and the engine is
no longer being cooled sufficiently.
X
Stop as soon as possible and allow the engine and the coolant to
cool down.
X
Check the coolant level (Y page 267). Observe the warning notes
as you do so and add coolant if necessary.
If the coolant level is correct, the engine radiator fan may be faulty.
The coolant is too hot and the engine is no longer being cooled suf-
ficiently.
X
At coolant temperatures below 248 ‡ (120 †), drive to the near-
est qualified specialist workshop.
X
Avoid heavy loads on the engine as you do so, e.g. driving in
mountainous terrain and stop-and-go traffic.
Notes on towing vehicles
The vehicle is not suitable for attaching tow
bar systems, such as those used for flat tow-
ing or dinghy towing.
Attaching or using tow bar systems may result
in damage to the vehicle.
When towing a vehicle with tow bar systems,
safe driving characteristics cannot be guaran-
teed for the towing vehicle or the towed vehi-
cle.
The vehicle/vehicle combination may swerve.
Observe the permissible towing methods
(Y page 289) and the notes on towing with
both axles on the ground (Y page 289).
DYNAMIC SELECT button (all vehi-
cles except Mercedes-AMG vehicles)
Use the DYNAMIC SELECT button to change
the drive program. Depending on the drive pro-
gram selected the following vehicle character-
istics will change:
R
the drive (engine and transmission manage-
ment)
R
the suspension
R
the steering
R
the curve tilting function (vehicles with
Active Body Control)
R
the control thresholds of ESP
®
Each time you start the engine with the Smart-
Key or the Start/Stop button, drive program C
is activated. Further information about starting
the engine (Y page 127).
Each time you start the engine with the Smart-
Key, drive program C is activated. Further
information about starting the engine
(Y page 127).
132
DYNAMIC SELECT button (all vehicles except Mercedes-AMG vehicles)
Driving and parking
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