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168
Driving
The assistant attempts to maintain the speed
at which the v
ehicle was travelling when the
brake was applied, within logical limits. It may
be necessary to correct the speed by pressing
the brake.
The assistant can only change down as far as
3rd gear. It is possible that on very steep slopes
you may have to switch to tiptronic mode and
thus manually change down to 2nd or 1st gear
to take advantage of engine braking and take
the load o the brake system.
Downhill speed control is deactivated as soon
as the road levels out again or you press the
accelerator pedal.
On vehicles with a cruise control system
›››page180, downhill speed control is activa-
ted when you set a cruising speed.
WARNING
The downhill speed control cannot defy the
l
aws of physics. Therefore, speed cannot be
maintained constant in all situations. Always
be prepared to use the brakes!
Steering
Information relating to dierent vehi-
cle processes.
To make the vehicle more dicult to steal, al-
ways lock the steering before leaving the it.
Steering
On vehicles with electromechanical steering,
the power steering automatically adjusts ac-
cording to the driving speed, the steering wheel
torque and the orientation of the wheels. The
power steering only works when the engine is
running.
If the power steering does not work properly or
does not work at all, you will have to use much
more strength than usual to turn the steering
wheel.
Progressive steering
Depending on the vehicle’s features, it may or
may not incorporate a progressive steering sys-
tem.
In city trac you do not need to turn so much
on parking, manoeuvring or in very tight turns.
On roads or motorway, progressive steering
transmits, for example, in bends, a sportier,
more direct and noticeably more dynamic driv-
ing sensation.
Steering assist
This help assists the driver in critical situations. It
recommends turning the steering wheel to per-
form a corrective manoeuvre (counter-steer-
ing), turning slightly to avoid skidding ›››
.
WARNING
Steering assist helps the driver in critical sit-
uations. The driv
er is the person who has to
control the vehicle's steering at all times.
Troubleshooting
Steering fault
The w
arning lamp lights up red.
There is a fault in the power steering.
●
St
op driving! Seek specialist assistance.
●
Do not allow the vehicle to be towed on its
own wheels.
Steering fault
The contr
ol lamp lights up or flashes yellow.
The steering is stier or reacts more sensitively
than usual.
The control lamp lights up and remains lit:
●
Restart the engine and drive slowly for a short
dist
ance. Contact a specialist workshop if the
control lamp remains on.
●
OR: the 12-volt battery was disconnected
and reconnected. Drive slowly for a short dis-
tance.
The control lamp flashes:
●
Turn the steering wheel slightly from one side
t
o the other.
●
Turn o the ignition and turn it on again.
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