A/C Compressor Regulator Valve -N280-

WARNING: This page is about a different car, the 2024 Audi S6 and 2024 Audi A6 Quattro. 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-, the 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-, REMOVING AND INSTALLING, AND REPLACING .