Audi A4: Refrigerant Circuit Components Allocation, High and Low Pressure Sides
Audi A4 (B9) 2016-2026 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
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Rear Lid, Removing and Installing
Rear Lid, Removing and Installing, Sedan
To complete the procedure, a second technician is required to be at
the following position.
Removing
- Remove the rear lid lower trim panel. Refer to
→ Body Interior; Rep. Gr.70; Luggage Compartment Trim Panels;
Rear Lid Lower Trim
Glass Panel, Removing and Installing
Glass Panel, Removing and Installing, Sedan
Caution
This procedure contains mandatory replaceable parts.
Refer to component overview and parts catalog prior to
starting procedure.
Mandatory Replacement Parts
Screw - Glass Panel
The following components must be replaced after removal. R
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