That's great cause summer is coming soon
It always pleases me if someone is able to use any of my DIY advise to do a job without $$ flying around. MB techs might say that the old blower motors won't last very long once the shafts get tight or brushes wear....... But $2 looks great compared to the multi hundreds that even Ind. Tech would do that job for not to mention the 700.00 estimate from MB dealer.
If your car uses the same accessory belt tensioner as my 300E you might want to search for my post on a different idea about repair of that tensioner. Different procedure than MB doc outlined, but worked for me and makes sense to me even tho I did not get positive feedback from any of the people who monitor this forum.
Luck to you,