You can have decent A/C performance with a dirty evap, from what I recall they were the same on all W126s. Check EPC to verify, could be a VIN break for late ones.

The SD for sure changed condensers (smaller tubes for better heat dissipation), cooling fans (electric and mechanical), and water pump pulleys (volume and fan speed). Go for all of the late items for increased A/C performance.

If you want really great performance, a Volvo I6 RWD dual speed fan assembly will just barely fit on the SD. It moves a pile of air on low speed and easy to hook up.

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]