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General information
Applies to vehicles: with Audi adaptive cruise control and Audi
pre sense front
Fig. 81 Front of vehicle: sensor
The general information applies to adaptive
cruise control* and pre sense front*
r::!>page 103.
The radar sensor area r::!> fig. Bl must not be cov
ered with stickers, deposits or any other obstruc
tions as it may impair the function of the adap
tive cruise control and the pre sense front. For in
formation on cleaning, refer tor::!>
page 235. The
same applies for any modifications made in the
front area .
The function of the adaptive cruise control sys tem and pre sense front is limited in some condi
tions :
- Objects can only be detected when they are
within the sensor ranger::!>
page 96, fig. 80.
-The system has a limited ability to detect ob
jects that are a short distance ahead, off to the side of your vehicle or moving into your lane.
- Objects that are difficult to detect such as mo
torcycles, vehicles with high ground clearance
or an overhanging load are detected late or not
detected at all.
- When driving through curves
r=> page 98.
-With stationary objects r::!> page 98.
A WARNING
Always pay attention to traffic when adaptive
cruise control is switched on and the pre
sense front is active
r::!> page 103. As the d riv
er, you are still responsible for starting and
for maintaining speed and distance to other objects. The pre sense front is used to assist
you. The driver must always take action to
Assist
avoid a collision. The driver is always responsi
ble for braking at the correct time.
- Using adaptive cruise control incorrectly can
cause collisions, other accidents and serious
injuries.
- For safety reasons, do not use adaptive
cruise control when driving on roads with
many curves, when the road surface is in
poor condition and/or in bad weather (such
as ice, fog, gravel, heavy rain and hydroplan
ing). Using the system under these condi
tions could result in a collision.
- Switch adaptive cruise control off tempora
rily when driving in turning lanes, on ex
pressway exits or in construction zones. This
prevents the vehicle from accelerating to
the set speed when in these situations.
- The adaptive cruise control system will not
brake by itself if you put your foot on the ac
celerator pedal. Doing so can override the
speed and distance regulation.
- When approaching stationary objects such
as stopped traffic, adaptive cruise control
will not respond and pre sense front will
have limited function.
- The adaptive cruise control system and pre
sense front do not react to people, animals,
objects crossing the road or oncoming ob
jects.
- The function of the radar sensors can be af
fected by reflective objects such as guard
rails, the entrance to a tunnel, heavy rain or
ice.
- Always maintain enough distance from
vehicles ahead so that you can still brake
your vehicle safely. The adaptive cruise con trol cannot safely slow your vehicle or brake it to a stop if you are driving too close be
hind a vehicle. Please note that the auto
matic braking function cannot brake sud
denly or apply the brakes fully under these
conditions.
- To reduce the risk of unintended actions,
switch the ACC off when you are not actively
using it.
~
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If th is indicator light turns on and stays on and
this message appears, the power steering may have failed .
Do
not continue driving. See an authorized Aud i
dea ler or autho rized Audi Service Facility for as
sistance.
• Do not drive vehicle: steering defective
There is a malfunction in the electron ic steering
l ock. You cannot turn the ignition on .
Do
not tow your vehicle because it cannot be
steered. See an authorized Aud i dealer or author
ized Audi Service Fac ility for assistance .
'-:r,ij Steering malfunction: you can continue driv
ing
If the indicator light turns on, the steering whee l
may be more difficult to move or more sensitive
than usual. The steering wheel may also be at an
angle when dr iving straight.
Drive slow ly to an authorized Audi dealer or au
thor ized Audi Se rvice Facility to have the ma l
function corrected.
!II Steering lock: system fault! Please contact
Service
There is a malfunct ion in the electron ic steering
l oc k.
Drive to an authorized Aud i dealer or authorized
Aud i Service Facility immediately to have the
malfunction corrected.
_& WARNING
-
Have the system malfunction corrected as
soon as possible by an authorized Audi dealer
or authorized Audi Service Faci lity, as th is in
creases the risk of an accident .
(D Tips
If
the . or ,-:r-n indicator light only stays on
for a short time, you may continue driving.
Intelligent Technology
All wheel drive (quattro)
Applies to vehicles: with all w heel drive
In all wheel drive, all four wheels are powered.
General information
In all wheel dr ive, the dr iv in g power is divided be
tween all four whee ls . T his happens automatical
ly depending on your driving behavior as well as
the current road conditions . Refer to¢
page 123,
Electronic stabilization control (ESC).
The all wheel drive concept is designed for high
engine power. Your vehicle is exceptionally pow
erfu l and has excellent driving characteristics
both under normal driving conditions and on
snow and ice. Always read and follow safety pre cautions
q ,& .
Winter tires
By using all wheel drive, your vehicle has good
forward motion with standard tires in winter con
ditions. However, in winter we recommend using
winter or all season tires on
all four wheels, be
cause this will improve the
braking effect .
Snow chains
If
there are snow chain laws, snow chains must
also be used on vehicles with all wheel drive
q page 230, Snow chains.
Replacing tires
For vehicles with all wheel d rive, only wheels wi th
the same rolling circumference should be used.
Avoid wheels with different tread depths
qpage 221.
Offroad vehicle?
Your Audi is not an offroad vehicle -there is not
enough ground clearance. For this reason, avoid
difficult terra in. Refer to¢
page 259.
_& WARNING ~
-Also, in vehicles with a ll wheel drive, adapt
your driving style to the current road and
traffic cond itions . Do not let the increased
safety provided tempt you into taking risks.
- The braking ability of your veh icle is limited
to the tract ion of the wheels. In th is way, it
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