Look on page 2 of the thread:
Ticking noise from a/c blower fan
I got as far as looking at the cover to the blower motor, but I've found that you just unclip the cover, and the blower motor sort of snaps in and just rests in there and there is a simple plug that you pull apart, and voila, it's comes right out.
2001 E430, Bourdeaux Red, Oyster interior.
1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".