Refrigerant Line With Inner Heat EXCHANGER

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2022 Audi SQ5, 2022 Audi Q5 e, 2022 Audi Q5, 2021 Audi SQ5, and 2021 Audi Q5 e. However, it is still accessible from the selected car via links, so may be relevant.

In this refrigerant line, the hot fluid refrigerant on the high pressure side flows to the flowing gaseous or vaporous cold refrigerant on the low pressure side to increase the efficiency of the A/C system.

Fig 1: Identifying Refrigerant Pipe With Inner Heat Exchanger
Courtesy of AUDI OF AMERICA, LLC

NOTE:

This illustration shows a refrigerant line with an inner heat exchanger as it is installed on for example the Golf 7, the Audi A4 from MY 2008 and on the Audi A5 Coupe from MY 2008. Refer to Refrigerant Circuit (vehicle-specific repair information).

A -

Refrigerant Line with Inner Heat Exchanger

B -

Channel inside the refrigerant line in which the warm fluid refrigerant flows to the evaporator (refrigerant circuit high pressure side)

C -

Channel inside the refrigerant line in which the gaseous or vaporous cold refrigerant flows to the A/C compressor (refrigerant circuit low pressure side)