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:
Turbocharger, G-Charger
Turbocharger
All procedures and components are described under:
→ Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.21; Turbocharger;
Turbocharger, Removing and Installing.
Charge Air System
Overview - Charge Air System
1 - Charge Air Cooler
Removing and installing.
Differential
Overview - Differential
1 - Left Flange Shaft Seal
Replacing. Refer to
→ Chapter "Left Seal, Replacing".
2 - Shim
Behind the taper roller bearing outer race
3 - Taper Roller Bearing Outer Race
4 - Front Differential
5 - Bolt
Tighteni
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