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.
READ NEXT:
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:
Windshield Antenna Suppression Filter -C18-, Removing and Installing
Windshield Antenna Suppression Filter -C18-, Removing and Installing,
Sedan
The Windshield Antenna Suppression Filter -C18- is located
behind the left D-pillar trim panel at the center of the
D-pillar.
Removing
- Turn off the ignition and all electrical equipment and
remove the ignition key
Pedestrian Protection
Overview - Pedestrian Protection
1 - Driver Side Pedestrian Protection Crash Sensor 2 -G851-/Front Passenger
Side Pedestrian Protection Crash Sensor 2 -G852-
Unit with pressure hose
Component location: In the molded foam part on the impact member
Must be replaced when
The molded f
