A little more help with Blower Motor Please... - Benzworld.org

salamanca · 04-01-2004, 01:33 PM

Hey Tubs,
I was able to get to the motor without any problems. It took us less than 30 minutes. The diagram was right on point.
Right before putting in the new one, we decided to test the old one. Well, the old one works just fine. The problem seems to be electrical. The A/C kicks in just fine but the fan blower doesn't move.

I'm in Orlando, Fl , six hours away from home and though I brought the laptop, I didn't bother to grab the repair CDs; stupid me for totally trusting the mechanic's diagnostic.

Any ideas on troubleshooting?? Is there a relay or a resistor? If so where is it??

Once again, any advice would be greatly appreciated!! Thanks a lot TUBS and to all forum members.

BTW, my mechanic told me that replacing the blower motor was a long, pain in the butt job. He quoted me at $525.00 parts/ labor for the replacement; Amazing...
$107.00 for the motor at GermanStar and 30 minutes of my time. Who can you trust?

Thanks in advance!

v/r
Salamanca.-

Tubs300E · 04-01-2004, 02:43 PM

A fuse problem maybe? Could you push button unit be failing? I'm not really sure, I bet some other forum members could provide a little better feedback on this then me.

-Tubs

salamanca · 04-02-2004, 05:57 AM

Hey Tubs,

Finally got it fixed. Man, it almost got us but we figured it out.
After using a tester and testing all the lines we figured it had to be a fuse or a relay. Ok, a fuse but where the hell is it??
The blower motor fuse isn't in the fuse box along with all the other fuses. It is an in-line fuse all by it self. It's a little resistance plate(25). It is located in a little plastic box right above the spring prong on the driver side.
(funny, it took me longer to find the fuse than it did to take everything apart and put it back toguether).

The old motor was bad after all. After hooking it up direcly to the battery it started beause of the direct voltage. Because of it struggling and pulling so much amperage, it burned the fuse to begin with. This fuse was placed in line by it self as a precaution so it wouldn't burn the whole fuse unit.

It sure is a good feeling to have learned a little more about my car and to have saved about $400.00, literaly.

Gotta love this forum...Thanks again Tubs.

v/r

Salamanca.-

Sergio · 04-02-2004, 07:14 AM

When you bought the new motor, did it come with the cages or is that a separate item?
Also, if separate, how difficult is removing the cages?
Thanks for the info!
Sergio

salamanca · 04-02-2004, 08:40 AM

Hi Sergio,

The cages are a separate item. They are not that dificult to remove but you need to be careful since they are kinda fragile.

Generally due to moisture the ends of the motor that hold the cages, usually have some rust. With this in mind, it would be wise to use some thin sand paper and WD-40. I recommend having someone help you. You can each hold seperate ends of the blower and slowly twist each cage out.

When installing the cages on to the new motor, I used a small hammer to tap down on it. To get it all the way through, I used a wrench socket so the motor ends can be exposed.

I must emphasize on how fragile the cages are. They are not made of glass but just be careful when handling them. Examine the cages and observe what's hard and what's soft that way to know where you can apply pressure and where not to.

Good luck, I hope this helps.

v/r
Salamanca.-

Sergio · 04-06-2004, 12:31 PM

Thanks Salamanca.
Apparently, on my 1995 E320 (Which has dust filters) you must purchase the motor with cages at a cost of $250. I was hoping I could buy only the motor and use the existing cages. I'll try doing this before the summer is over. Right now it makes a bird chirping sound but only intermittently.
Thanks again for all the help.
Sergio

LondonThing · 04-07-2004, 04:21 AM

I missed the original thread; when you say it took 30 minutes to get in there, is this from the hood side or the interior?

salamanca · 04-07-2004, 09:16 AM

Hello LondonThing,

This was all from the hood, I did nothing from the interior...

The blower is directly below the wiper motor.

Let me know if you have any more questions.

p.s. I've been in there twice. The first time, I forgot to plug in the wiper motor. First thing yesterday morning I took everything apart again to get my wiper running.
Yes, you can laugh [:)] ...one thing's for sure, I got it down-packed.

v/r
Salamanca.-

LondonThing · 04-12-2004, 04:13 PM

Your day wasn't as bad as mine - see my other thread [:(]