Rather than pay my local tech $650 to replace my A/C blower moter in my '95 w124, I decided to have a go myself. Went to the pick-a-part yard for a trial run on a junker. Bought a couple of good fans there, maybe I'll sell them on Ebay. That was helpful, but not the same year as my car. So I started on my own car. After breaking some plastic and a few small cuts to my hands, I got the blower motor out. It was 111 degrees that day, and I was working outside. Motor was stiff, would hardly turn. Went to an electric motor shop, just for grins, they wouldn't touch it. While there, I began to shake the motor and tap it with a screwdriver. Suddenly, bits of foam rubber began to fall out. Lots of it. And it began to free-up. So I went home, liberally sprayed some AeroKroil ( by far the best penetrant I know of) into the bushings, and soon it began to spin freely, like new. No endplay or shaftplay anywhere. I added a little 3-in-one oil to the bushings, and re-installed the motor. Works perfectly. Also replaced the original-looking cabin filters ($51 from the dealer). What a difference! And a great feeling of satisfaction at having saved/earned $650. After doing it once, now I could replace the motor in less than an hour, and not break anything, but that's what practice is all about. Try it.