Intelligent technology
188
pedal very quickly, the brake assist system automatically 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 assist system
switches itself off as soon as you release the brake pedal.
The brake assist system will not be operative if there is a malfunc-
tion in the ABS.
WARNING
Please remember that the accident risk always increases if you
drive too fast, especially in corners or on a slippery road, or if you
follow too close behind the vehicle in front of you. An increased
accident risk cannot be compensated even by the brake assist
system, so always be sure to maintain a safe speed.
Traction control system (ASR)
The traction control system prevents the driven wheels
from spinning when the car is accelerating.
General notes
The traction control system (ASR) is one of the functions incorpo-
rated in the electronic stabilisation program (ESP).
The traction control system (ASR) helps the car to start moving,
accelerate and climb a gradient in slippery conditions where this
may otherwise be difficult or even impossible.
How the system works
The ASR acts automatically i.e. without the driver's intervention.
With the aid of the ABS sensors
⇒
page 187, the ASR monitors the
speed of the driven wheels. If the wheels start to spin, the engine
power is reduced automatically to match the amount of grip avail-
able. The system works at all speeds.
The ASR works in conjunction with the ABS. If a malfunction should
occur in the ABS, the ASR will also be out of action.
Switching on
The ESP is switched on automatically when the engine is started
and performs a self-test routine. As soon as this routine is complete,
the system switches back to normal operating mode. If the traction
control system (ASR) has been deactivated (for one of the reasons
noted below) you can switch it back on manually by pressing the
switch
⇒
page 186, fig. 192. The message ESP/ASR on will appear
briefly in the display.
You can switch the traction control system (ASR) on again if neces-
sary by pressing the switch
⇒
page 186, fig. 192.
Switching off
If required, the ASR can also be switched off manually by pressing
the switch briefly
⇒
page 186, fig. 192 (for less than 3 seconds). The
ESP warning lamp lights up when the traction control system (ASR)
is switched off, see
⇒
page 16. The message ASR off will appear in
the display. The ASR can be deactivated at any speed.
The traction control system should normally remain switched on at
all times. It should only be switched off manually in particular
circumstances where a certain amount of wheel slip may be desir-
able. For example:
•
when driving with snow chains
•
when driving in deep snow or on loose surfaces
•
when rocking the car backwards and forwards to free it.
The ASR should be switched on again afterwards as soon as
possible.
Note
To ensure that the ASR works properly, all four wheels must be fitted
with identical tyres. Any differences in the rolling radius of the tyres
document_0900452a81793dcc.book Seite 188 Mittwoch, 21. März 2007 5:42 17
Summary of Contents for S5 CABRIOLET
Page 1: ...Audi S5 englisch 04 07 Audi S5 Owner s Manual rz 2007 5 42 17 ...
Page 8: ...6 document_0900452a81793dcc book Seite 6 Mittwoch 21 März 2007 5 42 17 ...
Page 9: ...7 Controls document_0900452a81793dcc book Seite 7 Mittwoch 21 März 2007 5 42 17 ...
Page 152: ...150 document_0900452a81793dcc book Seite 150 Mittwoch 21 März 2007 5 42 17 ...
Page 153: ...151 Safety document_0900452a81793dcc book Seite 151 Mittwoch 21 März 2007 5 42 17 ...
Page 186: ...184 document_0900452a81793dcc book Seite 184 Mittwoch 21 März 2007 5 42 17 ...
Page 187: ...185 Driving tips document_0900452a81793dcc book Seite 185 Mittwoch 21 März 2007 5 42 17 ...
Page 210: ...208 document_0900452a81793dcc book Seite 208 Mittwoch 21 März 2007 5 42 17 ...
Page 244: ...242 document_0900452a81793dcc book Seite 242 Mittwoch 21 März 2007 5 42 17 ...
Page 245: ...243 Self help document_0900452a81793dcc book Seite 243 Mittwoch 21 März 2007 5 42 17 ...
Page 278: ...276 document_0900452a81793dcc book Seite 276 Mittwoch 21 März 2007 5 42 17 ...
Page 279: ...277 Technical data document_0900452a81793dcc book Seite 277 Mittwoch 21 März 2007 5 42 17 ...
Page 284: ...282 document_0900452a81793dcc book Seite 282 Mittwoch 21 März 2007 5 42 17 ...
Page 285: ...283 Index document_0900452a81793dcc book Seite 283 Mittwoch 21 März 2007 5 42 17 ...