The radiator fan pulley on my '89 300E just split in half so I'm getting
ready to replace it but I was wondering if anyone could give me a heads-up
on how best to remove the fan so that I can get to the pulley.
I see that there is a hex bolt in the middle but there also appears to be
some slots in the fan hub that indicate the need for a special tool to hold
the fan while loosening the bolt. What's the best way to get this
off--hopefully without another tool? Do I need to remove the fan shroud?
Also, has anyone else see this pulley fail and if so are there any theories
as to why or how?
Thank you all for the links to the tools, the home made alternative, and the
Although I think I understand the "spanner like" tool that engages with the
back of the hub I'm not clear about the purpose of the "bent pencil" tool.
Is it used instead of the spanner or in conjunction and if in conjunction
I made a tool to remove the radiator fan on my 1987 300E as I did not
have the proper Mercedes Benz tool.
Rummaged around in my junk box and found a thick walled metal tube the
size of a fat pencil about a foot long that the throttle cable runs
through the fan housing on an old VW Beetle. Spent the afternoon filing
down the outside of one end until it just fit in the hole in the shaft
at the1:00 position mentioned by Karl and Tiger. You will need a
flashlight to locate the hole back there. Many test fits including
bending an angle in the foot long tube to duplicate the Mercedes tool
and allow it to thread down around things to engage the hole.
Probably not worth the effort to save ordering the MB tool, but I am
Scottish . . .
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