Lsmalley agree with your comment. There are some good "lists" of info about various manufacturers. PM me if you're interested. And if it's any consolation, I just ponied up $140 for the OEM receiver/drier for my 300D and I think the Behr after market one was $20 some dollars.

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'89 260e (212K Mi.), '92 400e (208K Mi.), '92 400e (not a misprint) (146K Mi.), '95 C220, '81 240D--Sold