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re: "...Are there any different components on the '93 240 Air Conditioning as compared to a '92...."
I would guess that your question relates to some intention to convert your '92 car from the original freon 12 to the new 134a -- am I right?
Assuming that, and while I'm not an A/C expert, I have the impression, from reading a lot of stuff on this list, that there have been a number of changes in components to 'support' the use of the 134a refridgerant that have been adopted in the 1993 cars.
134a has different chemical and physical properties. For example, just consider the components of the conversion kit. It includes some different hoses and gaskets, because I believe that 134a might leak from original materials. I know that it includes a different oil for the compressor, because this new refridgerant isn't compatible with the old type of lubricant. And I think it also includes a different condenser (or is that an evaporator?), because the thermodynamic properties require a larger one for acceptable performance.
I may not be right on all of the above, but I know that you can't just refill your '92 with 134a and expect it to work well.
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