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1.0 Air Conditioner Refrigerant: HFC-134a

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The refrigerant HFC-134a (also known as R-134a) is used as of the following models with an air conditioner:

  1. 1992 E32/M30 from March 1992 production
  2. 1993 E34, E36, 325iC. E31, E32 from August 1992 production

This environmentally friendly refrigerant performs similar functions as Freon(R) R12, but the refrigerants Freon(R) R12 and R-134a must NEVER be mixed or combined in any way under any circumstances.

See T.R.I. 64 01 92 (2121) for general information, S.I. Bulletin B 64 10 92 (3536) for overall description and diagnostic procedure, and S.I. Bulletin B 64 02 92 (3495) for non-approved refrigerants.