Hi,
Can anyone tell me the simplest way, or only way to install a blower regulator on my 94 E320. Thanks.
Bob

If you search for the blower motor removal instructions, use those and underneath the blower is the regulator. I was able to find them, and use them this morning for a blower removal on a 1988 300E. The only problem is the pictures are thumbnails only, as the links to not work anymore, but you can get an idea from the thumbs how to do it. try searching for w124 blower removal and that should bring up the thread. the good link is on page 2.

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1980 500SE/AMG Euro
1981 500SEL Euro
1982 380SEL
1983 300TD
1983 500SEC/AMG Euro
1984 500SEC
1984 300TD Euro
1986 190E 2.3-16
1986 190E 2.3
1987 300D
1997 C36 AMG
2003 C320T 4matic

past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350

... and do yourself a favor while in there and change the 2 filters..

Thanks so much, guys.

How did you determine you need a regulator??

I had changed the blower a while back as it was defective. Thinking the replacement was bad after having the same basic problem, I tested the new and it tested fine. Also, there was a 12v reading at the blower. The climate control switch also tested fine. Thanks for asking. Bob

I am trying to replace the regulator myself but can't quite figure out to get the heat sink out. Is there a special trick to it?

Under blower motor three screws hold blower motor saddle. After removal of the saddle you will see two machine screws holding regulator. Once removed, there are three screws at forward part of blower housing that hold down the front part of the housing that is under the blower and which the regulator was fastened. With all those three screws removed, you carefully bend the plastic of that part of the housing over the regulator upward from the front, just enough to work the regulator out. The regulator heat sink has a pin that goes down into a hole, and needs to come up about 3/4 inch to clear.