Audi A4: Assist systems
Audi A4 (B9) 2016-2026 Owner's Manual / Assist systems
- General information
- Driving information
- Driver assistance
- Cruise control system
- Efficiency assist
- Audi adaptive cruise control
- Operating Audi adaptive cruise control
- Predictive control
- Setting the distance
- Adjusting adaptive cruise control
- Traffic jam assist
- Distance warning
- Audi active lane assist/lane departure warning
- Audi pre sense
- Audi pre sense basic
- Audi pre sense front
- Swerve assist
- Side assist
- Exit warning
- Parking and maneuvering
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General information
Safety precautions
WARNING
As the driver, you are always completely responsible
for all driving tasks. The assist
systems cannot replace the driver's attention.
Give your full attention to drivin
Speed warning system
Description
Applies to: vehicles with speed warning system
The speed warning system helps the driver to
stay below a specified maximum speed. A warning
threshold can be set in the MMI for this purpo
SEE MORE:
Refrigerant R134a
Refrigerant R134a Physical Data
Vehicle air conditioning systems make use of the
vaporization and condensation process. In this case, one works
with a substance which boils easily, designated as refrigerant.
The refrigerant used is tetrafluoroethane R134a, which boils
at -26.5 ºC (-15.7 ºF) at
General Information
High pressure side are the condenser, receiver/dryer and
restrictor or expansion valve to separate the high and low
pressure liquid ends.
High pressure results from the restrictor or expansion valve
forming a constriction and causing the refrigerant to
accumulate, thus leading to an increase in
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