A4 Quattro Sedan L4-1.8L Turbo (AEB) (1998)
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A/C Coupler O-ring: Description and Operation
Refrigerant System (R-134a), Components
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.
NOTE:
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Handle O-rings only in a clean working environment.
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Do not reuse O-rings, always replace.
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Always use correct size O-rings (dimensions -a- and -b-).
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Lubricate O-rings with refrigerant (PAG) oil before installing.
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Always ensure O-rings are properly installed on pipe/component mounting flanges/grooves.
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O-ring and torque specifications also apply to threaded connections in the A/C lines.
