A/C Compressor Regulator Valve -N280-

WARNING: This page is about a different car, the 2024 Audi SQ7, 2024 Audi Q7, 2023 Audi SQ7, and 2023 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Switching pressures, removing and installing switches as well as switch arrangement and version. Refer to Refrigerant Circuit (vehicle-specific service information).

The regulator valve is installed in the A/C compressor. It is activated for example by the A/C Control Module -J301-, he Front A/C Display Control Head -E87- or the Climatronic Control Module -J255- (depending on the vehicle, possibly via the data bus and an additional control module). Use the Vehicle Diagnostic Tester in the A/C system "Guided Fault Finding" function and refer to the Refrigerant Circuit (vehicle-specific service information).

Fig 1: A/C Compressor Regulator Valve - N280
Courtesy of AUDI OF AMERICA, LLC
Pressure on the low pressure side is influenced by the regulator valve and thus regulates the temperature in the evaporator.

NOTE:

The A/C Compressor Regulator Valve -N280- is a component of the A/C compressor and cannot be replaced separately on all A/C compressors. Refer to the Parts Information and Refer to A/C Compressor Regulator Valve -N280-, EMOVING AND INSTALLING, AND REPLACING .