Audi Q5: Hill descent assist
The hilt descent assist makes it possible to drive
down an incline at a constant speed.
Fig. 187 Top of the center console: hill descent assist button
Fig. 188 Display: hill descent assist
- Press the button in the
center console
> fig. 187 or on the shift gate. The button will
illuminate.
- Press the button again to switch it off. The diode
in the button will go out.
Hill descent assist brakes all four wheels automatically
in order to limit speed when driving either
forward or reverse on hills with a grade up to
approximately 50%.
When the hill descent assist is on, the current
driving speed, when your vehicle entered the incline
is maintained. It is only possible to switch
on the assist when driving slower than 37 mph
(60 km/h). The assist works between approximately
2 and 19 mph (4 and 30 km/h). The driver
can increase or decrease the vehicle speed within
these limits by depressing the accelerator or
brake pedal In addition, vehicle steerability is increased
due to the braking distribution when
driving in reverse.
There must be however sufficient ground adhesion.
The hill descent assist can not do its job if
the incline is icy or if the incline ground is loose.
The system does not work at speeds between 19
and 37 mph (30 and 60 km/h). The system is
then in the ready-mode. The diode in the button
will come on. The system automatically switched
off when you drive faster than 37 mph (60 km/h). The diode will go out in this
case.
Active control at a specific speed up to approximately
19 mph (30 km/h) will appear in the instrument
cluster display > fig. 188. Two dashes "--"
will appear in the ready mode.
Hill descent assist is automatically activated under
the following conditions:
- the diode in the button illuminates,
- vehicle speed is below approximately 19 mph
(30 km/h)
- the incline is 10%.
WARNING
- Always adapt your speed to the weather,
road and traffic conditions. Do not let the increased
safety provided tempt you into taking
risks.
- The hill descent assist system cannot overcome
the laws of physics. Your driving style
must always be adapted to the current road
and traffic conditions.
- The hill descent assist may not be able to
hold your vehicle at a constant speed under
all conditions while driving on an incline (for
example if ground under the vehicle is
loose).
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With all-wheel drive, all four wheels are driven.
General information
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Special tools and workshop equipment
required
Used Oil Collection and Extraction Unit -SMN372500-
Counterhold - Multiple Use -T10172A-
Adapter -T10172/5-
Puller - Ball Joint -T40010A-
Torx Socket - T60 -T40087-
Hose Clip Pliers -VAG1275A-
Torque Wrench 1331 5-50Nm -VAG1331-
Approved Refrigerant Oils and Capacities
Note
As PAG (polyalkylene glycol) oil is highly hygroscopic
(attracts water), opened containers are to be immediately
resealed so as to be air-tight.
PAG oil from containers which have been open for a lengthy
period is no longer usable.
Refrige