fan motor is good, replaced fuse, replaced climate control unit, replaced fan control unit, still no fan operation at all, any help would be greatly appreciated.........

Did you replace the in-line strip fuse as well as the fusebox fuse? Look in the little rectangular plastic fuse case just forward of the fusebox (3" by 3/4" black). That's what failed on mine...good news: a new one is $1.50.

that's the first i have heard of a second fuse, i'll check it out, if that's it, i owe myself a big kick in the butt.......thanks.....

that was the problem, thanks for the help....................

Hello:

I have a similar problem as my blower does not come on, but
does work when I directly put 12v on it.

Would that rectangular plastic fuse be in my 1984 300SD also ?
What color is it ? I don't see a 3 inch by 3 quarter of an inch fuse.

I don't see a Strip Fuse box
next to my regular fuse box
in my 1984 300sd

Does someone know where it is on this car ?

Hey OTTOBUN,

Thanks for the tip. I just got a 300E and this is exactly what was wrong. So do we get a replacement from an MB dealer or can we just go to Auto Zone for it?

Thanks,
Jason