Also got in there and took a look at the blower motor on my 83' 300D that is periodically blowing fuses. Not all the time, but every now and then.
Someone mentioned oiling the bearing and felt scraper with 30W might help lessen it's draw. Well I got the motor out, but I didn't see any obvious access to bearings. I had some thick almost gel-like oil in a spray can with a straw (though it's so thick it just drools, never sprays) and got in as near as I could through the blower fan on one end and in-between the brushes on the other end. Not sure where this felt scraper was or if I got to the right area, or if there's more I'm supposed to disassemble, but it seems like I'm either going to break the plastic fan trying to force it off the shaft, or have to bend metal on the other end to get any better access... I've never had one out before and turned it on. MAN those things move a LOT of air. (: Also, along the same lines, are there 3 or 5 total possible speeds for the fan? I was thinking someone had said that there was basically the top speed "5" which could only be accessed via the top fan button, a lowest speed "1" which could only be accessed via the bottom fan button, and then the auto button chose between speeds 2,3 or 4. But I was monkeying with it more lately, and I'm not sure I can tell much difference between the high and low push buttons and the max or min speeds that auto reaches... And lastly, if I were to give the blower motor it's own upgraded wiring to handle a 20amp fuse for full speed, Is there a simple way so that I can do that without interfering with the ACC system? I'm tempted to just put in my own switch for max speed, but it would be nice if it were just integrated with the ACC system so that it functions as it does now, simply with an extra fuse and a little bit of wiring. I guess what I really need is to find a wiring diagram(preferably one that just dealt with the blower motor). I'm having trouble trying to figure out where the wiring goes with the control unit in the center dash, the resistors way out behind the passenger headlight, and then the motor back in the passenger footwell...(not to mention the fuse over on the drivers side). Thanks! Levi
