A/C - Use of Refrigerant R-134A

November 3, 1992



Model
All



Group
8



Part Identifier
8700



Number
9206



Subject:
Refrigerant R-134a



ATTENTION:
Service Manager/Service Technician

Models Affected:
All models from 1993 on

Concern:
Use of R-134a air conditioning refrigerant.

General Information:
Beginning with model year 1993, Porsche vehicles will use CFC free refrigerant (R-134a) in the air conditioning systems of most 1993 models.

R-134a is used in:

All 1993 968's
All 1993 Carrera 2's
All 1993 Carrera 4's
1993 928's from WP0 AA 2929 PS 82 0061
1993 RS's from WP0 AB 2969 PS 41 9061



Refrigerant R-134a and refrigerant R-12 ARE NOT compatible with each other. Care must be taken to identify the refrigerant type before servicing or making any repairs. Many of the components in the R-134a system are different from those used in A/C systems using R-12. Always consult the latest Porsche parts microfiche before ordering or replacing parts. This will help prevent any possibility of damaging the A/C system. The refrigerant oil which is used in R-134a A/C systems is also different It is a synthetic oil marketed by Nippondenso and is the only refrigerant oil currently approved for use in Porsche A/C systems using R-134a. See Warranty Bulletin Number 9221, dated August 13, 1992 which outlines the Warranty Part Numbers to be used for Warranty Claim Reimbursement.





All A/C systems and components charged with R-134a have been marked accordingly. When servicing A/C systems using R-134a refrigerant use of specialized recycling equipment is required. Porsche Cars N.A. currently recommends the Sun MRC 450. Refer to Equipment Bulletin Number 9202.