Shop 1994 Audi S4 A/C Receiver Drier. 5 CYLINDER. S4; R134A System. Air Conditioning Receiver Drier - OEM Audi Part # 4A0820191AB (4A0-820-191-AB)

Air Conditioning (A/C) Receiver Drier. Dehydrator.
A/C Receiver Drier. R134A Refrigerant.

A/C Receiver Drier

Fits S4, S6

5 CYLINDER. S4; R134A System.
Air Conditioning Receiver Drier Assembly - Repair or Replace
The receiver drier in your A/C system contains a desiccant that protects its metal components as well as acting as a filter to prevent damage to the rest of your system. They also frequently include a pressure switch that signals your A/C compressor to turn on or off. Your should get a new receiver drier, or accumulator, any time your air conditioning is undergoing repairs.