Heating, air conditioning

Refrigerant circuit seals

~1min read

Renew seals.

Moisten seals with refrigerant oil before installing.

Ensure proper seating of seals on the pipe or in the groove.

Work in a completely clean environment (the smallest particles, e.g. hair, may already cause leaks). Note
Use only seals that are resistant to refrigerant R134a and the associated refrigerant oil. These seals are marked in colour to prevent them from being interchanged (currently “red”, “purple” or “violet”) → Electronic Parts Catalogue. The dimensions -a- and -b- vary, depending on the fitting locations of the seal → Electronic Parts Catalogue. In addition to the coloured seals, black seals are also used during production for certain connections.
Refrigerant circuit seals

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A quick Volkswagen Golf quiz: every answer comes with an explanation and a link to the manual page.