Quote:
Originally Posted by ksing44
My friend just had his 1996 W210 aux fans done at a "trusted indy" and they plugged them in backwards so they were blowing the wrong direction. His car did not cool well, even when moving, since I guess the fans were working against the air flow. Anyway, I don't know if that is your problem, but it sounds like it might be an easy mistake.
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You can't plug the connector in backwards; there is a key which prevents this.
Was that an aftermarket assembly, by any chance? I bought one a while back that was wired in reverse. I fixed that problem, but the fan failed nine months later and I replaced the OEM motor in my original assembly.