Audi A4: Refrigerant Circuit Components Allocation, High and Low Pressure Sides
Audi A4 (B9) 2016-2025 Service Manual / Heating, Ventilation & Air Conditioning / Refrigerant Circuit General Information / Refrigerant Circuit Components Allocation, High and Low Pressure Sides
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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
Condenser
The condenser conducts heat from compressed refrigerant gas
to the ambient air.
This condenses the refrigerant gas to fluid.
Note
Depending on the version of the refrigerant circuit, the
r
Reservoir
The reservoir collects the vaporized and gaseous mixture
coming from the evaporator to ensure the compressor only
receives gaseous refrigerant. Gaseous refrigerant is formed from
the vapor.
The ref
SEE MORE:
Specified Values for the Refrigerant Circuit Pressures
Note
On vehicles with a high-voltage system but without a heat
pump (for example on Audi A3 e-tron, Audi Q5 hybrid, Audi A6
hybrid and Audi A8 hybrid) no check valves are installed in the
refrigerant circuit. On these vehicles valves are installed in
the refrigerant circuit which regulat
Door Handle, Removing and Installing
Removing
- Remove the door handle trim. Refer to
→ Chapter "Door Handle Trim, Removing and Installing".
- If equipped, remove the exterior door handle illumination bulb.
Refer to
→ Electrical Equipment; Rep. Gr.94; Exterior Door Handle Lamps;
Exterior Door Handl
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