For 1990-2009 cars only
| • | Follow the instructions in Refrigerant Recovery for the unit that is being serviced. |
| • | Install new replacement air conditioning O-ring seals whenever a joint or a fitting is installed. If the O-ring seals are included with new replacement components, use these included O-ring seals. Excessive leakage of Refrigerant-134a may occur if the service replacement O-ring seals do not bear the specified part numbers. Refer to the part number for identification. |
| • | Coat the air conditioning O-ring seals with 525 viscosity refrigerant oil just before installation. Slip the air conditioning O-ring seals onto the flange tube in order to ensure proper locating and sealing. Do not soak the O-ring seals in refrigerant oil. Soaking the O-rings may cause swelling and reduced sealing effectiveness. |
| • | Examine the O-ring seals and the fitting before installation. Ensure that the parts are not nicked or deformed. Replace nicked or deformed parts in order to prevent leakage. |
