PeachParts Mercedes-Benz Forum - View Single Post - 300e A/C - I'm replacing every single part. Any value to later w124 AC upgrades?

ps2cho · #2 10-11-2010, 04:16 AM

Don't go to the dealer for the evaporator as you may get the Al/Cu version. I went with Reinz for my evap replacement and it has been rock solid. Make sure you thoroughly flush out ALL the hoses. Last thing you want is some metal shards ruining your new system.

Stick with R12 since you will be flushing the whole system and don't worry about the dual fan setup.
Plenty of guys on Craigslist who have R12 available for pretty cheap. Pointless going with R134a since you will have a leak tight brand new system.