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Audi A4 Cabriolet 2009 - Servotronic - Advanced Power Steering System

Audi A4 Cabriolet 2009
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& WARN ING (continued)
ext ra safety afforded by the ABS tempt you into t aking extra risks.
The ABS cannot overcome the law s of physics.
[ i J Tips
If ABS is not funct ioning properly, a warning light will come on.
See
=> page 20.
If a fau lt occurs in the ABS, the EDL is also not funct ion ing . This
is indicated by the ABS warning light.
Brake assistant
The brake assistant is designed to achieve the optimum
braking effect.
The brake assistant helps to increase the effective braking power
and thus to achieve a shorter stopping distance . If the driver
presses the brake pedal very quick ly, the brake assistant automati -
cally boosts the braking force to the maximum level, up to the point
where the anti -lock brake function (ABS) intervenes to stop the
wheels from locking. You should then keep the brake pedal pressed
until the vehicle has braked to the required speed. The brake assis-
tant switches itself off as soon as you release the brake peda l.
The brake assistant will not be operative if there is a malfunction in
the ABS.
& WARNING
Please remembe r that the accident risk always increases if you
drive to o fast, especially in corners or on a slipp ery road, or if you
follow th e vehicle ahead of you too closely. An increased accident
risk cannot be compensated even by the brake assistant, so
alwa ys maintain a safe speed.
Controls and equip-
ment
Safety first Vehicle operation
Int e llig e nt t ec hnol o gy
Servotronic® - advanced power
steering system
The power steering systems uses the power of the
running engine to allow precise steering with little effort.
The advanced Servotronic ® power steering system senses the road
speed and electronically adjusts power assistance to provide
comfortab le and safe steering response exactly matched to the
vehicle speed.
Power steering will not work if the engine is off. As a result, the
steering whee l wil l be hard to turn .
The power steering fluid level is checked during the schedu led
maintenance services.
0 Note
If there is an electronic ma lfunction, servotronic will still function
like a conventional power steer ing system, providing a constant
steering support force that is no longer proportionate to the vehicle
speed. This is most noticeable when tu rning t he steering whee l at
low speeds (for examp le when parking), - more effort wil l be
requi red than usual.
Be aware of the different than usual steering response and
adjust you r steering force accordingly .
Have the problem checked and set right by an Audi dealer as
soon as possible .
[ i J Tips
When the engi ne is running, never hold the steering whee l
turned all the way to the right or to the left for longer than 15
seconds. The power steering pu m p will overheat t he hydraulic fluid
if you keep holding the steering wheel turned all the way. This is
likely to damage the power stee ring system.
~
Vehicle care Do-it-yourself service Technical data

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