PeachParts Mercedes-Benz Forum - View Single Post - 1987 300D is running too hot! Where do I look first?

Diesel Dan · #11 10-07-2006, 08:20 PM

As I inspected the fan a bit closer, I realized that the tips of the fan blades that are closest to the radiator were all clipped off, apparently from abrasion on something. The radiator fins also seemed to be chewed up in a circular pattern; though oddly enough, not matching the location of the chipped fan blades. When I moved the fan manually, it broke free of some obstruction and broke off a chunk of one of the blades. Maybe the blade was already cracked, and I just broke off the already cracked piece. It's really hard to see in there, so I'm not sure where the blades were rubbing. Anyway, it spins free of obstruction when I turn it manually now.

What's up with that?! The fan doesn't move front to back when it engages does it? Why would it be all mangled, and the radiator mangled, but yet it spins free of obstructions?

I'm stumped.