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E34 (1989 - 1995)

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  #1  
Old 01-11-2013, 05:28 PM
rav31 rav31 is offline
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Lost sons '92 535i last night!

His '92 535i that I sold him several years ago caught fire & totally burned up last night. ( He said smoke started coming out of the air vents so he stopped & looked down into the cowl area and there was a glow. He tried pouring some soft drink on it but he could get to it. Tried to turn around & get it to the house & within a 1/2 block, he said the lower dash "exploded" into flames. So he stopped & got out of the car. before anything else could be done, it was shooting flames through all windows. Has anyone ever heard of this happening? he said it started in the fan motor.
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  #2  
Old 01-11-2013, 06:18 PM
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BMR_LVR BMR_LVR is offline
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Haven't heard of it. Man, I'm glad your son is OK. Sorry to hear about his car.
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  #3  
Old 01-11-2013, 06:27 PM
rav31 rav31 is offline
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Quote:
Originally Posted by BMR_LVR View Post
Haven't heard of it. Man, I'm glad your son is OK. Sorry to hear about his car.
It looked just like yours except had the 535i stuff with E39 wheels
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  #4  
Old 01-11-2013, 06:33 PM
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Monsignor Monsignor is offline
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E34s that burn away are always shorted fan motors. That's without a doubt the cause. I'm terribly sorry friend, glad to hear your son is okay. This is a rare occurrence.

I'll pour one out for the fallen sister. I'm sure her services never went under appreciated.

Sent from Joe's Galaxy SIII via BimmerApp
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  #5  
Old 01-11-2013, 07:04 PM
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M540FELLA M540FELLA is offline
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http://forums.bimmerforums.com/forum...t=fan+resistor
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  #6  
Old 01-11-2013, 11:12 PM
paperplane94 paperplane94 is offline
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Old blower motor sparking at commutator.....

Dirty cabin air filter not allowing any airflow to pass.....

Dry leaves stuck between blower housing and evaporator.....

Glowing hot Final Stage Unit resistor.....


What can you do???:

1. Change your air filter

2. remove blower motor and vacuum leaves out from under it and around it

3. lower the amperage rating for the stock rated fuse at the fusebox

4. Change out or clean out the final Stage Unit.

5. Inspect the brushes and commutator of the blower motor for excessive wear.

Sad to see that maintenance could have prevented the loss.
Any other suggestions?
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  #7  
Old 01-12-2013, 11:20 AM
rav31 rav31 is offline
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Quote:
Originally Posted by paperplane94 View Post
Old blower motor sparking at commutator.....

Dirty cabin air filter not allowing any airflow to pass.....

Dry leaves stuck between blower housing and evaporator.....

Glowing hot Final Stage Unit resistor.....


What can you do???:

1. Change your air filter

2. remove blower motor and vacuum leaves out from under it and around it

3. lower the amperage rating for the stock rated fuse at the fusebox

4. Change out or clean out the final Stage Unit.

5. Inspect the brushes and commutator of the blower motor for excessive wear.

Sad to see that maintenance could have prevented the loss.
Any other suggestions?
Need your help on this as we have (2) other '92 535i's.

1. Change your air filter...you mean the cabin filter, right

3. lower the amperage rating for the stock rated fuse at the fusebox
would this be fuse #19 to 20 amp
4. Change out or clean out the final Stage Unit. is there a link on cleaning the UNIT
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  #8  
Old 01-12-2013, 11:24 PM
paperplane94 paperplane94 is offline
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yup, cabin air filter


Yes, I believe the stock amperage rating is 30 amps. Lower it to 20 and see if it still runs the blower. If not then just keep it at 30 amps.

Find out where the Final Stage Unit is and remove it. Often times people find dried up leaves sitting right on top of the hot coils in the FSU.

Search google for "e34 FSU location". AKA resistor pack

here is one:
http://www.bmwe34.net/E34main/Mainte...ical/Sword.htm
http://forums.bimmerforums.com/forum....php?t=1408177
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  #9  
Old 01-14-2013, 01:34 PM
robertobaggio20 robertobaggio20 is offline
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Quote:
Originally Posted by paperplane94 View Post
yup, cabin air filter


Yes, I believe the stock amperage rating is 30 amps. Lower it to 20 and see if it still runs the blower. If not then just keep it at 30 amps.

Find out where the Final Stage Unit is and remove it. Often times people find dried up leaves sitting right on top of the hot coils in the FSU.

Search google for "e34 FSU location". AKA resistor pack

here is one:
http://www.bmwe34.net/E34main/Mainte...ical/Sword.htm
http://forums.bimmerforums.com/forum....php?t=1408177
OP, congratulations on the best thread title in awhile, and further congratulations that your family was not harmed during this awful incident.

PP94, I'm voting you in for the MVP award. Your posts have been spot on especially of late. Thank you.

I've stepped down my blower's fuse and will be cleaning up the blower motor area and inspecting the wiring there later today, and switching out the resistor within a month. Had bought the new unit more than a year ago but decided to wait as the blower's control decided to behave itself subsequently.

This issue should be stickied, or appended to the maintenance sticky. It is clearly rare, but since it is a safety issue and since the minimum that people can do as a precaution (i.e. stepping down the fuse, which already substantially helps to alleviate the risk) is something that is cheap, it should be made part of our standard operating procedures for the car and should be recommended to every new owner.

Quote:
Originally Posted by M540FELLA View Post
That bimmerforums thread was dated 5 months ago.

It would be a good idea for all of us to cross post stuff like this as soon as they are encountered, on other forums or on the web generally, especially when safety issues are involved. It might end up saving a life.


rgds,
Roberto
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  #10  
Old 01-14-2013, 05:09 PM
snowsled7 snowsled7 is offline
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Save a life? Wow, that is pretty dramatic don't you think? If you see fire under the dash, get out, do we need to sticky the obvious?
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  #11  
Old 01-14-2013, 09:00 PM
robertobaggio20 robertobaggio20 is offline
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Quote:
Originally Posted by snowsled7 View Post
Save a life? Wow, that is pretty dramatic don't you think? If you see fire under the dash, get out, do we need to sticky the obvious?

Not everyone has the capacity and wherewithal to react intelligently to a sudden situation. Say you lend your car to your wife or daughter who is a relatively new driver. Lets say she is on the highway at moderate speed at night and its a relatively busy highway. Lets say she just had a major fight with her dad over her lunch money and she's just bumbed over this. Lets say the fire suddenly happens and she loses just enough control of her emotions to knock a neighbouring vehicle that was accelerating past her at just that moment. Lets say she realises that she has knocked that vehicle and reflexively pulls the other direction, and knocks a harley. Let say.....

And anyway, what we are stickying is the simple steps to prevent the fire, not how to react to a fire. Please, slow down, calm down, and read what I write.
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  #12  
Old 01-15-2013, 01:31 AM
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Costa Costa is offline
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What in the ****
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  #13  
Old 01-15-2013, 04:49 AM
rav31 rav31 is offline
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Quote:
Originally Posted by robertobaggio20 View Post
Not everyone has the capacity and wherewithal to react intelligently to a sudden situation. Say you lend your car to your wife or daughter who is a relatively new driver. Lets say she is on the highway at moderate speed at night and its a relatively busy highway. Lets say she just had a major fight with her dad over her lunch money and she's just bumbed over this. Lets say the fire suddenly happens and she loses just enough control of her emotions to knock a neighboring vehicle that was accelerating past her at just that moment. Lets say she realizes that she has knocked that vehicle and reflexively pulls the other direction, and knocks a harley. Let say.....

And anyway, what we are stickying is the simple steps to prevent the fire, not how to react to a fire. Please, slow down, calm down, and read what I write.
Thanks Robert, for you cool words of wisdom. One of my purposes on posting the fire was to make me & all others aware of a potential issue on anyone who drives one of the se cars. I happen to have (2) more that are not burned, and have now taken steps to help keep this from happening to me & my other son. I have also share this information to my local BMW Ind. shop owner, who just happens to have a '91 E34 M5 & he was not aware of this issue, as well as one of the CCA members that has an E23 635csi. They are taking steps to clean & reduce fuse size. Thank you to the ones that share the information
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  #14  
Old 01-15-2013, 05:40 AM
robertobaggio20 robertobaggio20 is offline
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I think thats a great idea....i will let my indys know about this as well. They will probably shrug it off the way they do everything that comes from the forums, at least to my face,, but will probably do the needful with their other customers.
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