Ass is tan ce sys tems
-Due to the interlinking of various vehicle sys
tems, critica l driving situations can be detected
by
pr e se nse basic and measures for preventa
tive occupant protection are can be initiated.
- The
pre sen se fro nt system uses the data from
the adapt ive cruise control* radar sensors and
the camera to calculate the probability of a col lis ion. Within the limits of the system, an im
pending collision with vehicles can be detected
i n both urban and rural speed ranges. In this
case, the system warns the dr iver visually,
acoustically and with a jerk on the brakes if nec
essary.
If needed, it can initiate a pa rtial or fu ll
deceleration to reduce the co llision speed or to
avoid the collision under certain circumstances .
In conjunction with pre sense basic/rear, the
front safety belts are also reversibly tensioned
when needed. The pre sense front is also active
when adapt ive cruise control* is switched off.
- Pre se nse re ar contains pre sense basic func
tions. It uses the data from the side assist" ra
dar sensors and calculates within the limits of
the system the probab ility of a rear end coll i
s ion with the vehicle behind you . Pre sense rear
is also active when s ide assist* is swit ched off.
- Within the limits of the system,
pre sense city
uses the camera data and ca n detect a n im
pending coll ision with veh icles and pedest rians.
In this case, the system warns the driver vis ual
ly, acoustically and with a jerk on the brakes if
necessary. If needed, it can initiate a fu ll decel
eration to reduce the co llision speed or to avoid
the coll is ion under certain circumstances. In
conjunction w ith pre sense bas ic/rear, the front
safety belts are also revers ibly tensioned when
needed .
.8. WARNING
Read the general informat ion in~ .& in Gen
eral information on page 108, ~.& in Gener
al information on page 127.
- Certain pre sense functions switch off when
driving in reverse.
1> Th is is not availab le in some co untr ies.
118
- The p re sense f unct ions may not be availa
ble if there is a malfunction in the ESC sys
tem o r the a irbag control module .
- Note that the reversible belt tensioner on
the front passenger's side deactivates when
the front passenger's airbag is deactivated.
- Switch the pre sense off when you are not
using public streets or when load ing the ve
hicle onto a vehicle carrier, tra in, sh ip or
other type of transportat ion. This can pre
vent an undesired intervention from the pre
sense system.
Audi pre sense basic
Description
App lies to : vehicles wi th Aud i pr e se nse basic
The pre sense basic functions are activated at a
speed of approximately 20 mph (30 km/h) or
higher.
The following functions can be triggered under
certain conditions within the limits of the sys
tem:
- Tensioning of the safety belts (for examp le,
during heavy braking): the front safety belts
have reversib le be lt tensioners . If a collision
does not occur, the safety belts loosen slightly
and are ready to trigger aga in.
- Closing the windows and sunroof*.
-Activating the emergency flashers
1> .
The message A udi pre sen se. ~ page 119,
fig. 115
will warn you abou t the danger.
Audi drive select*: the tr igger times are adjusted
depending on the mode selected .
Audi pre sense front
Description
Applies to: vehicles wi th Audi ada ptive c ruise con trol
Within the limits of the system, pre sense front
can warn you of impend ing collisions and init iate
the corresponding braking maneuvers or the sup- porting measures when avoid ing a coll is ion. .,.
