It appears that my Blower motor is toast.... - PeachParts Mercedes-Benz Forum

Chadahar · #1 10-28-2007, 12:56 PM

1984 380 SE W126
I replaced the climate control relay and R & R'd the blower relay and replaced it. it is working as I hear it clicking when various buttons are pushed. when I tried to push a fan button on slow, I got an odor of a possible melt down of circuit board. and I shut it off. I then disconnected the blower and the aux heater pump. I then hooked the blower motor to ground and used my probe to see if power was going to the blower when I pushed the slow or high button and there is power there. NO blower turning at all. I took off the lower cover and the motor does rotate so it's not frozen. I did not get the burning electrical parts oder either. So I'm positive that the blower motor is toast. Probably needs brushes.

What I need to know is how to get the blower assy out to R & R the blower motor. I have everything out that is around it but the relays are back in place. I understand that it just 3 bolts holding it in and I can see some push clips holding the halves together. Where are the bolts or screws to remove the assy.?

I have searched all the DIY articles but see nothing about the W126 Heater blower removal. I have this all apart and do not wish to put it back together until I can r &R or replace the blower.

Any help will be greatly appreciated.

Chadahar · #2 10-28-2007, 02:16 PM

My blower motor IS TOAST. I went out and looked up in the assy and found the three screws that holds the blower in the assy. It would have dropped on my face if i hadn't read that it would just drop out, actually it was still sealed a bit. I brought out the assy and sit it on the coolant tank and attached ground to the ground side and power to the power side and it is TOAST! the commutator area where the brushes ride looks like the (black)Grand Canyon! and I think the brushes are GONE! Or at least not much left after 24 years. Commutator is so grooved up that i fear it will not clean up enough to work.

Ok new blower in my future.

I will try to R &R this one but at my lesiure.

Thanks to this website it is making these fixes much easier and i'm find that this car is actually pretty simple to work on once you figure it out.