e320newbie

Hi this noise isnt as important because i can drown it out with my stereo but i would like it to be quiet. im sure it been dealt with before with you guys so lend me ur expertice its my ac / heater fan in the car. when its on it will sqweek like the belt is old or something it just makes an annoying noise. if anyone knows how to fix this please help thank you all

ksing44

I have a small intermittent squeaking from my fan too. I was told that it is the bearings in the fan motor. They told me that although lubrication could temporarily help the problem, I really need to just replace the fan. I was also told that he problem with either remedy is that the fan is buried in the dash, so it is going to be expensive to get to it. I hope it isn’t as bad as getting to the infamous evaporator. If it is, I may just replace both parts, even if the evaporator isn’t faulty. I don’t want to pay them to go into my dash twice, and in general I don’t like thinking about them tearing apart my car.

When it starts to squeak a little, I just run the fan on high speed to get it to stop. After the squeaking stops, I can go back to slower fan speeds and the squeaking is gone or greatly reduced. I also notice that the squeak changes slightly upon breaking hard or when there are other sudden changes in the forces being applied to the entire car. Like you, I only notice the little squeak when the stereo isn’t playing. I suppose that sooner or later the squeaking will get much louder and constant, so I will have to get it fixed, but it has already been a few years with no change for the worse.

Jer

You are all in luck (and so am I) because the fan is accessed through the fresh air grille under the windshield. You don't have to remove the dash. The windshield moldings and FA grille must be removed, as well as the wiper assembly. Not an easy task, but definitely nowhere near as awful as replacing the evaporator!

e320newbie

sweet man im so glad to hear that, thanks alot man

optimizer

This same problem started on my 300CE! At first it was tolerable and would only squeak if I hit a bump or hit the brakes hard, but now it's pretty consistent and annoying so the fan bearings must be deteriorating pretty quick (it's been 2 months since I noticed the first squeak).

I'm semi-handy but definitely would not be able to do this without guidance... any tips or DIYs on how to get this done?

Also, what's the part / part number that needs to be replaced?

ZorroAMG

LOL 4yr old thread and 2 of them don't even post anymore...

rivcal4life

at least he used the search feature...

ZorroAMG

Very true...

optimizer

sooo.. any tips?

shdoug

Search under my old posts and I have a link to a nice write-up on this subject. My PC is in storage or I would post it again.

optimizer

r u referring to this?

http://www.buymbparts.com/forum/showthread.php?t=528

optimizer

hmmm... ok did a bunch of digging and figure that I need to get through the fresh air grille which apparently needs the wiper and other things removed.

would appreciate if anyone could help with some links on how to get this done?

Thanks!!