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before negotiating a downhill section to allow the engine to also act as a
brake.
Engine overheating
Please keep a check on the coolant temperature gauge if you have to
negotiate a lengthy slope in a low gear at a high engine speed when the
outside temperature is very high ⇒ page 13.
If the needle of the coolant temperature gauge moves into the right-hand
area or even the red area of the scale, reduce your speed immediately.
Stop and switch off the engine if the warning light
cluster begins flashing. Wait a few minutes and check the level of coolant
in the coolant expansion bottle ⇒ page 189, "Inspecting the coolant level".
Please refer to the following guidelines ⇒ page 31, "Coolant tempera-
ture/coolant level ".
The coolant temperature can be reduced by switching on the heating.
Any increase in the cooling effect of the coolant fan through shifting down
a gear and increasing the engine speed is not possible since the fan
speed is independent of the engine speed.
gear for this reason when towing a trailer as long as the engine can
manage the slope without any drop in speed.
Using the system
Safety
Detachable towing device*
in the instrument
The detachable ball head of the towing device is stowed in the spare
wheel well in the luggage compartment.
One should also not drop a
An instruction for correct installation and removal of the ball head of the
towing device is supplied with the ball head
Inspect the ball head to ensure that it is properly locked each time before
setting off. The inspection is performed by turning the closed locking lever
downwards. If the locking lever can only be turned approx. 5°, the locking
mechanism is O.K. After the inspection pull the locking lever back again
to its stop. The towing device must not be used, if it does not wish to close
or the locking lever turns slightly in the closed position.
Driving Tips
General Maintenance
WARNING
Do not use any aids or tools for installing or removing the ball head.
This might result in damage to the locking mechanism to the extent
Breakdown assistance
Towing a trailer
167
Fig. 131 Detachable
ball head
Technical Data
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