Audi A4: Refrigerant Circuit General Information
Audi A4 (B9) 2016-2026 Service Manual / Heating, Ventilation & Air Conditioning / Refrigerant Circuit General Information
- Vehicles with a High Voltage System (Hybrid Vehicles)
- Refrigerant Circuit Components Allocation, High and Low Pressure Sides
- Refrigerant Circuit
- Connections for Quick-Release Coupling on Refrigerant Circuit
- Switches and Sensors on Refrigerant Circuit and Connections
- Refrigerant Circuit Pressures and Temperatures
- Pressure Gauge, Tests and Measurements
- Service and Recycling Units
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Vehicles with a High Voltage System (Hybrid Vehicles)
Extremely Dangerous Due to High-Voltage
The high-voltage system is under high-voltage. Death or serious
bodily injury by electric shock.
- Individuals with electronic/medical life- and health su
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
SEE MORE:
Rear Bumper Cover, Removing and Installing
Special tools and workshop equipment
required
Body Socket -T40078-
Depending on the equipment version, the following additional work must be
performed.
Removing
- Remove the bolts -1-.
- Push the wheel housing liner -3- to
the side.
- Remove the bolt -2-.
- Remove the nut
Overview - Peripheral Camera System
The peripheral camera system (KA6) consists of four cameras.
They are located in the radiator grille, in both side exterior
mirrors and in the rear lid. The system helps the driver when
parking, maneuvering or when driving off-road. The camera images
are displayed on the Front Information Displa
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