ok so on one of the hotest days yet this summer my blower motor just stopped! didn't make any noises or anything just quit blowing, but the rest of the A/C works (if I vent the sunroof and go about 85-90 the air out of the vents comes out ice cold) even the thing that changes the air coming out the center vents is working, well it will blow out the center vent for like 2 min then spend 2 hours coming out the defrost vents then come out the center vents for 2 more mins, of course if has always done that and is very annoying, but I digress. does anyone know where to start? Is there a seperate fues for the blower fan? this is an 87 300D.

Thanks
Jeff

Check the fuse box and make sure the fuse holder for the heater/A/C fan hasn't melted and dropped down into the fuse box. It is and issue with your car. It happened to mine. There is a bypass to fix the problem if that is what it is. If you use the search feature or better yet a google search of this site, you will find it.

Chris

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1987 300TD 309, xxx 2.8.2014 10,000 mile OCI


Be careful of the toes you step on today, as they may be connected to the ass you have to kiss tomorrow. anonymous

“Be who you are and say what you feel, because those who mind don’t matter, and those who matter won’t mind.” Dr. Seuss

I had the same issue with my 92 300D 2.5 Turbo. I pulled the fan out and cleaned out the motor brushes, they were worn down to almost nothing but I figured I could make it through the summer. A new blower fan is very expensive, my mechanic quoted me $400 to fix. You can make your own brushes by opening up two AA batteries if you are handy. Another option is to take the blower motor to a motor/alternator repair shop, they should be able to fix for a lot less than buying a new motor. Good luck.

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Asantoni
92 300D 2.5T (225K miles)
05 Frontier CC (36k miles)

With no intention of hijacking this thread, I would appreciate more info on this.

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2009 E320 Bluetec 117,000
1995 E300D 306,000 Sold
1996 Ford Taurus LX 130,000 Sold
1985 300TD Still 225,000 Sold
2016 Ford Fusion 24,900

If it is your blower motor, don't be cheap, but a new Bosch motor for $60+/- (motor only) (wwww.***************)and press on/off the two blower wheels.

This way you will be done with it and not have to r/r all that below windshield stuff again. Clean/vacuum evaporator while you are there.

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1993 Mercedes Benz 300D 2.5 205K (ex wife's)
1984 Mercedes Benz 300SD 320K (SOLD)
2004 Mercedes Benz C240 75K
1995 GMC Sierra 2WD 5.7L 188K
1983 Mercedes Benz 300SD 239K (SOLD)
1987 BMW 325i 220K (SOLD FOR SALVAGE)

609 Certification

It's an old trick my father taught me years ago (He's an electrician used to rebuilt motors in our old basement) remove the core from a battery, I opened a dead D size battery and there is a good size "brush inside them. File or shave until it's the shape of the brush you need. Not sure about longevity but it does not cost anything either. I can send pictures if you like.

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Asantoni
92 300D 2.5T (225K miles)
05 Frontier CC (36k miles)

I haven't had time to look at this yet other than trying to find the heater/AC fan blower fuse. where is it? I did a search and couldn't find anything, what position in the fues box is it?

What year and model of car?

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RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.

91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K

90 Dodge D250 5.9 Cummins/5 speed. 400K

It's a pretty safe bet that it hasn't changed since post #1.

300D 2.5 turbos (at least for 92) have two fuses for the fan blower motor. One inside the fuse box (driver side) and a second larger fuse outside the fuse box by the strut tower. Fan blower motor has 3 leads, one ground one 12V and one that receives the variable voltage to control speed. Hope this helps.

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Asantoni
92 300D 2.5T (225K miles)
05 Frontier CC (36k miles)

after finally figuring out that that big box next to the strut tower is the blower fuse, I popped it open and there was the culprit, it was burned in two. does anyone know about what the retail price is for that fuse, can it be had a a regular autoparts store or do i have to go to a dealer?

Thanks in advance

http://catalog.worldpac.com/mercedesshop/sophio/quote.jsp?clientid=catalog.mercedesshop&cookieid=21H0MN3YU24W0JA9QA&baseurl=http://catalog.peachparts.com/&partner=mercedesshop&year=1987&product=P2015-26593&application=000238801