87-32
O-rings
O-rings seal the connections between components of the A/C system.
Use only O-rings which are compatible with R-134a refrigerant and
refrigerant (PAG) oil. Refer to the most recent parts information when
obtaining new O-rings.
Notes:
Handle O-rings only in a clean working environment.Do not reuse O-rings, always replace.Always use correct size O-rings (dimensions -a- and -b-).Lubricate O-rings with refrigerant (PAG) oil before installing.Always ensure O-rings are properly installed on pipe/component
mounting flanges/grooves. O-ring and torque specifications also apply to threaded connections in
the A/C lines.
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87-33
Hoses and lines
The mixture of refrigerant oil (PAG oil) and
refrigerant R-134a attacks some metals and
alloys (for example, copper) and breaks down
certain hose material. Use only hoses and lines
which are identified with the lettering "R-134a."
Hoses and lines are secured with threaded
connections. Always properly torque hose and
line connections.
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pair&id=AUDI.B5.HA01.87.6
