i need a new one, any adverse effects to having a non-working fan?
let me apologize for my ignorance in advance, im a novice.. but what exactly does the fan do? air cool the oil cooler?

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1985 300D - "Desi"
1981 300D - "Pepi"
1984 240D - "Sticky"
1985 300TD - "Flitstone"
1984 300TD - "Frenchie"
1987 300TD - "4481"

You'll overheat in traffic in hot weather. It cools the radiator. Depending on where you live, you can get away without a fan thru a good part of the year.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

fan cools the water in radiator which cools the engine, via water in the cylinder head. No fan, you'll overheat, warp head, crack block, seize engine, buy another non turbo replacement....................get the part. Used is OK.

You could also end up with this problem as mentioned in this ad:
I have a Mercedes for sale that need some work but could be super cute once again.
The engine needs to be rebuilt and there is some body damage to the hood where the fan blade went through. She could also use a new paint job and a passenger window. The interior needs to be redone but overall she is a solid.Email me with all offers and if you would like pictures of her.

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DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012

I agree that it needs to be replaced. The engine will heat up rapidly in traffic, even in moderate outside temperatures. Mine actually boiled over in traffic when my fan clutch failed (on a 70F day).

Jim, M. is "The Man" on fan clutches.

See here:

http://www.peachparts.com/shopforum/showthread.php?t=195595

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'84 300SD sold
124.128