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Notes on repair work to vehicles with air conditioning and on handling refrigerant
Notes on repair work to vehicles with air conditioning and on handling refrigerant
The assemblies and pipe work system of the air conditioner are filled with refrigerant R134a (tetrafluorethane, CF3-CH2F or CH2F-CF3).
At present the R134a refrigerant pressure vessels are labelled with the following trade names:
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‒ H-FKW 134a
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‒ SUVA 134a
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‒ ARCTON 134a
These trade names may vary from country to country.
Further information:
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◆ The appropriate fault finding programme can be found in, Fault finding "Heating, Air conditioner - binder 2".
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◆ The valid current flow diagrams can be found in, Current flow diagrams, Electrical fault finding and Fitting locations binder.
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◆ Repairs on the air conditioner refrigerant system can be found in Workshop Manual "Air conditioner with R12 refrigerant R134a, May 1992 ▸".
Warning!
Before working on the electrical system disconnect the battery earth strap.
Notes:
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◆ A notice on the lock carrier plate in the engine compartment provides information concerning the refrigerant and refrigerant oil used (air conditioning using R134a the refrigerant oil is a Poly-Alkylen-Glycol base with additives).
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◆ The components of the R134a refrigerant circuit are identified by labelling or by green stickers.
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◆ Before disconnecting the battery, the codes for radios with anti-theft coding are to be obtained.
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