LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning (Refrigerant R134A Servicing) (2 Of 2) >> 87 Air Conditioning >> Refrigerant Circuit General Information >> Switches And Sensors On Refrigerant Circuit And Connections >> A/C Compressor Regulator Valve -N280-

A/C Compressor Regulator Valve -N280-

NOTE:

Switch pressures, removing and installing switches as well as switch arrangement and version. Refer to vehicle specific refrigerant circuit SYSTEM OVERVIEW - REFRIGERANT CIRCUIT .

The regulator valve is implemented into the compressor. It is controlled by the Front A/C Display Control Head -E87-, the A/C control Module -J301- or the Climatronic Control Module -J255- (depending on the vehicle, possibly via the Data Bus of the an additional control module). Refer to Refrigerant Circuit . Pressure on the low pressure side is influenced via the regulator valve and thus regulates the temperature in the evaporator.

Fig 1: A/C Compressor Regulator Valve - N280
GWWA87-0378Courtesy of AUDI OF AMERICA, LLC
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 A/C Compressor Regulator Valve -N280-, REMOVING AND INSTALLING .