O-Ring Seals
- Make exclusive use of seals which are resistant to refrigerant R134a and the related refrigerant oils. Color coding of O-rings is no longer employed. Colored and black O-rings are used.
- Be sure to use seals with the correct inner diameter. Refer to the parts information and O-RING SEALS [HVAC] / REFRIGERANT CIRCUIT SEALS / REFRIGERANT CIRCUIT - CABRIOLET (1 OF 3) / REFRIGERANT CIRCUIT - CABRIOLET (2 Of 3) /REFRIGERANT CIRCUIT (R134a) - CABRIOLET (vehicle-specific repair information).
- The O-rings may be used only one time.
- Coat the seals lightly with refrigerant oil (PAG oil) before installing.