My 300E heater/AC blower is making a little noise. Not obtrusive but can tell when it shuts off. Any way to predict how long it will last? We have a tech session in a month and I was wondering whether how long it takes to replace?
Thanks

I had mine replaced a few weeks ago. Took less than 2 hours

Did you do it or did someone else do it in less than 2 hrs? Thanks

Hello,

It took me about 3 hours to do mine. You start with some of the weatherstripping, then move on to remove the wiper componets. After the wiper stuff you will see the blower motor. You need a pair of pliers or something to get the strap off and thats about it.

Eric,

Buried deep in the archives from probably 3 years or so ago, is a thread with pictures covering the changing of the blower motor. It is VERY well done and would be almost indispensable for you.

Also, that two hours would probably be correct as long as your replacement fan has the fan blades installed. I bought mine without the blades and ended up having to fabricate some doodads to use with a gear puller to remove the fans, then I had to fuss around a lot to get them in the correct position so that they did not drag on the housing. I would strongly recommend paying the extra money for the motor with blades installed.

Also, I expect that the 2 hour estimate was for someone who had not done it before.

When and where is the tech session you were talking about? If it is at Park Place Mid Cities, I might meet you there if it fits my schedule. I would like to attend one there since my Brother in Law and friend of 30 years is a tech there.

I don't know how those tech sessions work, but they may expect you to buy the parts from them, I don't have any idea. Since you've been there you probably know.

Merry Christmas,

I haven't attended one of the DIY sessions - I have them in my own garage all the time! My understanding is that you are welcome to bring parts. The dealership parts department is open, but of course there is no guarantee they will have the required bits in stock.

Supposed to bring your own tools too.

Two hours is a good estimate for the first time R&Ring a fan on a 124. Could probably do it in 45 minutes on subsequent attempts.

- JimY

Thank you everyone.
At Fastlane the motor with fans is $330 and without is $130. That must be why everyone tries to get the squirrel cages off. I might call the shop foreman and see if he has a tool built that I could use.

Eric,

I did not remember that must difference in price, but I guess that's why I bought it without fans.

What I did to get my fans off, was took a body washer and cut a slot from the outer diameter to the center hole. I slipped that over the shaft and used a three arm gear puller to CAREFULLY pull the plastic fans off the shaft. It took LOTS of extra time to do this, not only to pull the fans but also to get them in the right position so as not to drag on the housing.

For that kind of price difference it's obvious why I bothered. I was cleaning out my old shop not too long ago and threw away the modified body washer or I would send it to your. You could make one with a vise, and a hacksaw.

Good luck with it and Merry Christmas,

I watched my mechanic replace my HVAC blower motor recently. It took him less than an hour to do the whole procedure.

I can see how it can take a novice 2-3 hours to do it. It's not that it is difficult. It is simply a matter of removing the wiper arm and motor, and all the clips and trim surrounding it.

Without pictures and a step by step procedure, I don't see how you would be able to do it. I remember seeing him remove screws that you don't know are there, unless you know they are there. You know what I mean?

__________________
Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".

Thank you all and it is good to hear from everyone