Refrigerant Circuit General Precautions: O-Rings

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Only use seals that are resistant to refrigerant R134a and the related refrigerant oils. Color coding of O-rings is no longer offered. Colored and black O-rings are used.
Be sure to use seals with the correct inner diameter. Refer to Parts Information and Refrigerant Circuit (vehicle-specific Service Information).

The seals may be used only one time.
Coat the seals lightly with refrigerant oil (PAG oil) before installing.