A4 Sedan V6-3.0L (AVK) (2002)
Refrigerant: Locations
A/C Refrigerant System, Component Overview
HD = High pressure side
ND = Low pressure side
1
-
A/C Compressor Regulator Valve -N280-
-
Do not remove
-
Checking activation and function.
NOTE: The A/C Compressor Regulator Valve -N280- is activated by the A/C control head -E87-, -N280-regulates the pressure on the
low pressure side of the compressor.
2
-
Compressor
O-ring seals for compressor:
-
For low pressure-connection: 23.8 mm x 2.4 mm
-
For high pressure-connection: 11.1 mm x 1.8 mm
-
Refrigerant lines on compressor, removing and installing.
-
To protect the compressor, the engine should only be started with the refrigerant circuit completely assembled.
-
Remove ribbed belt:
-
Compressor removing and installing.
-
Different compressors, depending on country variant and engine.
-
If a new compressor has been installed or new refrigerant oil has been put into the compressor (e.g. after blowing through the A/C system),
the compressor must be turned by hand approx. 10 revolutions. This ensures that the compressor is not damaged when activated.
3
-
Oil drain plug
-
Denso-compressors have sealing ring installed, always replace
-
Tightening torque: 30 Nm
-
Should only be unscrewed to drain refrigerant oil and with the compressor removed. Turn compressor via pulley, to speed up the oil
drainage.
4
-
Belt pulley