[W126 Coupe] A/C Question About R12 & R134

[Michael de Holl]

Thanks for the quick reply. Looks like the connection is a push on but not sure. The connection has threads on the inside that the blue cap screws onto. What do you think?
  ----- Original Message ----- 
  From: Mike R. 
  To: 'Mercedes Coupes Mailing Lists' 
  Sent: Saturday, August 29, 2009 12:03 PM
  Subject: Re: [W126 Coupe] A/C Question About R12 & R134


  The R134 connections are push on (no threads) and the R12 connections are threaded. Whatcha got??

   

  Mike R.

   

  From: mbcoupes-bounces at mbcoupes.com [mailto:mbcoupes-bounces at mbcoupes.com] On Behalf Of Michael de Holl
  Sent: Saturday, August 29, 2009 8:40 AM
  To: Mercedes Coupes Mailing Lists
  Subject: [W126 Coupe] A/C Question About R12 & R134

   

  Just got my 91 SEC back from a trusted Mercedes specialist independent shop for an A\C charge. He said the car needed a partial charge and the temp now at the vent was 42 degrees. On the paper work it says he used R134A refrigerant. As far as I know my system is still R12. There are no tags or decals saying anything different. Can you put R134 into a R12 system? What damage can this cause? Its the weekend so I can't verify what he put in until Monday. Any suggestions?

  Mike

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