Audi A4: Fluids in the A/C system
Refrigerant in the A/C system
The sticker in the motor compartment provides information about the type and amount of refrigerant used in the vehicle's A/C system. The sticker is located in the front section of the motor compartment or at the front or back of the hood.
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Warning: the A/C system must only
be serviced by qualified technicians.
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Refrigerant type
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Lubricant type
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Refer to the service information
(only available for authorized Audi
dealers or authorized Audi Service
Facilities)
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The A/C system must only be
serviced by qualified technicians.
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Flammable refrigerant
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Make sure all components are
disposed
of correctly and never install components in the vehicle that have
been removed from old vehicles or
taken from recycling.
Lubricant in the A/C system
The sticker in the motor compartment provides information about the type and amount of refrigerant oil used in the vehicle's A/C system. For the refrigerant oil quantity, refer to the Technical Data.
WARNING
To ensure secure and safe operation, the A/C system must only be serviced by qualified technicians and certified technicians (SAE standard J2845).
Tips
- Never repair the A/C system evaporator with components from old vehicles or from recycling.
- New replacement evaporators for portable A/C systems must be certified and labeled as such, so that they comply with the SAE standard J2842 HFO-1234yf and R744.
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Starting the vehicle
Convenience key
Applies to: vehicles with convenience key
Fig. 94 Center console: starting the engine
Requirement: the key must be in the vehicle.
Starting the engine
Press and hold the brake pedal
When driving
Starting to drive, stopping, and parking
Starting from a stop
Press and hold the brake pedal.
Start the engine.
Select "D" or "R".
Release the parking brake.
Release the brake pedal. The vehicle
SEE MORE:
Antenna Amplifier, Removing and Installing
Antenna Amplifier -R24-, Removing and Installing, Sedan
The Antenna Amplifier -R24- is located on the upper right of
the D-pillar.
Removing
- Turn off the ignition and all electrical equipment and
remove the ignition key.
- Remove the D-pillar trim panel. Refer to
→ Body Interior;
Traffic jam assist
Description
Applies to: vehicles with traffic jam assist
Fig. 116 Turn signal lever: button for traffic jam assist and
Audi active lane assist
Traffic jam assist supports the driver when driving
in traffic jams or in heavy traffic.
In a speed range under 40 mph (65 km/h), the
system can help to
