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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 04-20-2017, 05:13 PM
thatguysat thatguysat is offline
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Window regulators

What is the story on the e39 window regulators? I now have 3 windows yet do not work. I'm seriously fed up with this issue. I tried the replacement of the ones in the rear and they broke a month later. I'm afraid to touch the one on the passenger side door. Any suggestions?

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  #2  
Old 04-20-2017, 05:19 PM
luis.lopez20 luis.lopez20 is offline
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They like to fall off the rail check that

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  #3  
Old 04-20-2017, 05:19 PM
luis.lopez20 luis.lopez20 is offline
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And the switches too

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  #4  
Old 04-20-2017, 05:39 PM
thatguysat thatguysat is offline
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Switches are good... As much as I love Bmw, I think my next one will be a e30 with manual crank windows. No issues out of my first one. Lol. I suppose I'll give it the ole college try this weekend and maybe try to hate it less..

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  #5  
Old 04-20-2017, 05:41 PM
luis.lopez20 luis.lopez20 is offline
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Then yea check the tracks cuz that's the issue I had with mine

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  #6  
Old 04-20-2017, 05:42 PM
thatguysat thatguysat is offline
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Okay thanks.

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  #7  
Old 04-20-2017, 05:42 PM
luis.lopez20 luis.lopez20 is offline
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No problem bro

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  #8  
Old 04-20-2017, 05:44 PM
arthurwood arthurwood is offline
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I think it's the rollers that are bad.
Not much you can do about it.
One manufacturer has updated the rollers.
I forget which one that is though.
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  #9  
Old 04-20-2017, 07:50 PM
Bimmerfeel Bimmerfeel is offline
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Quote:
Originally Posted by thatguysat View Post
............... Any suggestions?

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Yep. Stop using the windows.
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  #10  
Old 04-20-2017, 08:56 PM
E39Hoon E39Hoon is offline
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Quote:
Originally Posted by thatguysat View Post
What is the story on the e39 window regulators? I now have 3 windows yet do not work. I'm seriously fed up with this issue. I tried the replacement of the ones in the rear and they broke a month later. I'm afraid to touch the one on the passenger side door. Any suggestions?

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I'm always afraid to use my back ones too. They always break. My front ones have been good so far.
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  #11  
Old 04-20-2017, 09:43 PM
Sephiroth Sephiroth is online now
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So as a new owner am I to understand a common thing which works on 20yr old, beat-up hunting trucks, does not work on a $70k car? Why? Are there improved parts we can upgrade to?
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  #12  
Old 04-21-2017, 10:31 AM
arthurwood arthurwood is offline
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Quote:
Originally Posted by Sephiroth View Post
So as a new owner am I to understand a common thing which works on 20yr old, beat-up hunting trucks, does not work on a $70k car? Why? Are there improved parts we can upgrade to?
I looked up my sales receipt.
Uro is the only window regulator manufacturer for the E39 (and a few other models) that has "upgraded rollers".

I spoke to the Uro engineer about it.
Call them.

They swear their Uro regulators last forever.
I've only had mine a short time so I can't tell you if they do or if they don't.

Anyone here have had Uro in the last year or two?
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  #13  
Old 04-22-2017, 11:25 AM
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mjalloul11 mjalloul11 is offline
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The main resone why the back regulator fails is the lack of lub in the side weather strip that the glass moves in, so a lot more force is on the regulator and that tiny tooth thing holding the cable causing it to fail. The other thing is that when the window is half open people tend to put their arm over the glass and push down thus putting force on the weak spot causing it to fail. The designe is simply wrong!
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  #14  
Old 04-22-2017, 02:56 PM
thatguysat thatguysat is offline
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Okay so today while i was driving the car the passenger window was falling. I pulled over to lift it back into place and the window actually came out of the door. So once I got home to put the glass back in, I found that the regulator cable on the top right had failed. I guess I'll be looking for a new one this week.

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  #15  
Old 04-23-2017, 08:16 AM
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TurnzSr TurnzSr is offline
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Quote:
Originally Posted by arthurwood View Post
I looked up my sales receipt.
Uro is the only window regulator manufacturer for the E39 (and a few other models) that has "upgraded rollers".

I spoke to the Uro engineer about it.
Call them.

They swear their Uro regulators last forever.
I've only had mine a short time so I can't tell you if they do or if they don't.

Anyone here have had Uro in the last year or two?
Uro offers a lifetime warranty on the Uro Premium. BavAuto has them in stock and are competitive. Just replaced a Vaico that didn't last the 1 year warranty from ECS.

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  #16  
Old 04-25-2017, 08:12 AM
arthurwood arthurwood is offline
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Quote:
Originally Posted by mjalloul11 View Post
The main resone why the back regulator fails is the lack of lub in the side weather strip that the glass moves in
I'm in agreement that the design is just wrong like wearing black socks, shorts, and sandals on the jersey shore.

But I'm not sure what you mean by the side weather strip.
Do you have a picture of that?

I think the front fails for different reasons than the rear so it matters which you're talking about. I think the rear fails when the lead crimp weight looses its grip on the cable.

I think the fronts mostly fail when the cable comes off the rollers although both can fail if the bolt gets loose on the clamp at the very bottom.

Quote:
Originally Posted by thatguysat View Post
Okay so today while i was driving the car the passenger window was falling.
You have to say if that is the front or the rear but even so the easiest failure to fix is when the holder at the bottom loosens up. Its only one screw as I remember so it needs to be lock tited to keep it firm.

Quote:
Originally Posted by TurnzSr View Post
Uro offers a lifetime warranty on the Uro Premium.
If someone gets a chance it would be good to ask the uro engineers what they fixed. When I asked they told me it was the rollers. but I don't know if they made tehm bibgger or just a better matieral.
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  #17  
Old 04-25-2017, 08:22 AM
Sephiroth Sephiroth is online now
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This thread has my attention. I normally just leave the AC on auto and am happy (ashamed to say I do not see an on/off switch yet and haven't finished reading the manual) but if I want to crack the moon roof and drop the windows, they're known for being a bad design and failing?
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  #18  
Old 04-25-2017, 09:02 AM
arthurwood arthurwood is offline
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Quote:
Originally Posted by Sephiroth View Post
This thread has my attention. I normally just leave the AC on auto and am happy (ashamed to say I do not see an on/off switch yet and haven't finished reading the manual) but if I want to crack the moon roof and drop the windows, they're known for being a bad design and failing?
Sunroof is less problems than windows but you may be better to just leave them alone and never use them.

Ac is stupid design. Meant to set and forget.
That would work well if the weather never changed.

So that's why the fan doesn't have an off switch separately.
You just have to hit button after button.

You're supposed to control the temperature with the round sliders in the vents.

Doesn't work but that is the theory.

Theeory summarized as I undersatnd it is that you
< 1 > set the temperater and forget about it after that
< 2 > use the sliders to control the vents from blue dots to red dots

If it worked that way it would be fine without an off and on button.
You can't even control when it goes on when you start the car.
Stupid system if you ask em.e
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  #19  
Old 04-25-2017, 09:09 AM
Sephiroth Sephiroth is online now
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I do not mind that type of setup, but it seems silly to run the AC unit and have your windows down at the same time. My American trucks always had a power button to kill or start the entire HVAC system. It's OK though, pollen season is here and I want it OUTSIDE my car.
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