See the JimF thread, posted earlier.
I followed his advice and procedure and everything went
You will need a large philips screwdriver and a T-20 torx.
As a rehearsal, I removed the cover and the air filter
to make sure that I could see the part and all the
connections. THEN, I ordered the part here from
the website. I also ordered a new air filter.
The new part (blower regulator) was $238.00 and the
filter was about $38.00.
You will probably want to provide the VIN number so
that you will make sure that you get the correct part.
I figure that I saved about $500.00 for the dealer
solution of replacing the blower assembly.
Thanks JimF and the Mercedes Shop!
1993 300SD (286k + miles)