Hi Folks,
My 1984 190E heater fan had been squealing (more with recycle air switch on) now it's sounding like a small air plane. Are the fan/blower bearings shot?

thanks,
Clay

I had that problem. Whatever fiberglass insulation they use inside the dash had wrapped itself around the motor shaft on both ends, binding it up. Other than that and dry bushings it didn't seem like there was anything worn. I just applied a few drops of transmission fluid to the bushings at both ends after I removed the insulation from the motor shafts and reinstalled, works like new.

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'02 BMW 325i
'85 300D 450k
'93 190E 2.6 170k(killed by tree)
'08 Ducati Hypermotard 1100S 6k
'06 Ducati S2R800 14k(sold)

Mine is a W124 and the motor is making high pitched squeaks, are they easy to get at? To remove and tinker with, I mean?

RayH

I had the small airplane engine sound coming from my blower. It was pretty bad. I ended up buying a replacement motor for like $100 and swapping the existing squirrel cages on it and installing it. Problem solved.

I was to the point where I'd pretty much lost the low speeds due to bad bearings.

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82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k

I pulled the motor on my car and lubricated the bearings several times, allowing the oil to soak for a few hours. Next day, wiped off the excess oil on the bearings, and reinstalled it. Started squealing again the next day, then quieted down. Now, I hardly hear any noise.

BUT, because the motor did squeal again, I went ahead and bought a new motor and blower wheels. I'll be replacing the OEM motor sometime in the future.

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My first Mercedes Benz. 4/6/07.

1984 190E (201 024) 2.3L four.