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Old 21st June 2019, 00:14   #21
neilbaker86
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I know it's the glass 'fretting' in the channel, as I've done this to death on my own car, I've had all four door seals out, tried everything from loosening the two lower pinch bolts on the regulator, bending the top of the door, adjusting the door hinges, packing it with rubber, sticking felt tape on the rubber, you name it. It's basically caused by the glass moving a tiny amount (like less than a milimetre) whilst it sits in the rubber, and it sounds like a very faint creaking rattle (a strange sound to describe), it's not loud, but once you notice it in an otherwise quiet car it's NAUGHTY WORD-NAUGHTY WORD-NAUGHTY WORD-NAUGHTY WORD-NAUGHTY WORD-NAUGHTY WORD- annoying. I've stripped my entire car and loaded it with additional sound deadening (even the roof and wheel arch liners have a deadening coating and closed-cell foam), it's one of the quietest cars I've ever been in whilst crusing at 50mph on a smooth road. But the windows are the only thing that you can faintly hear.

Silicone makes it worse, everytime, in fact I can tell if the car wash uses silicone-based car polish from the noise of the windows for a few weeks after.

The only thing that reduces it is as I've said, and as BMW recommended. But it doesn't go away completely, and will slowly come back again.

I just wished they flocked the glass channel rubbers as most manufacturers do. They obviously skipped it to save a few quid, although as mentioned most BMWs of the era didn't either, so it just obviously wasn't one of their engineering standards at the time. I might get some second-hand rubbers, mask them up, and apply some rubber adhesive and get hold of a flocking machine and give it a go one day.




A flocked rubber channel. ^^

Last edited by neilbaker86; 21st June 2019 at 00:27..
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Old 21st June 2019, 00:22   #22
T16
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I bet if you removed the waist seal as a test it would be ok.

Im sure its that rubbing against the door card. The noises can be very deceptive, and of course we could be speaking about different ones, but since I gave my glass a shove and a yank, the noise has never returned!

Maybe it adjusted the rubber seal, maybe it moved the waist rail a fraction, Ive no idea, but now I have silence I am enjoying it so far.
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Old 21st June 2019, 00:33   #23
neilbaker86
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Quote:
Originally Posted by T16 View Post
I bet if you removed the waist seal as a test it would be ok.

Im sure its that rubbing against the door card. The noises can be very deceptive, and of course we could be speaking about different ones, but since I gave my glass a shove and a yank, the noise has never returned!

Maybe it adjusted the rubber seal, maybe it moved the waist rail a fraction, Ive no idea, but now I have silence I am enjoying it so far.

I took them off and drove around without them (and the inner ones at the top of the door cards), the noise was still there. I actually replaced all four with new ones anyway as some of the flock had gone from the glass mating face, but ended up with an issue with the replacement front left piece peeling on its leading edge. Rimmer Brothers refunded me for that one in the end.



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Old 22nd June 2019, 02:36   #24
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Oh nightmare!!

Fair enough, I stand corrected, my noise must have been similar but not the same.
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Old 23rd June 2019, 13:05   #25
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WOW! Cleaned the rubbers in alcohol and applied the German rubber restorer and what a difference hardly any noise at all. From now on only water and rubber restorer on the window and door seals
Thanks chaps
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Old 27th June 2019, 21:18   #26
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Quote:
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LOL

I had the same issue. used to play a game of just cracking it down by 1mm or something and the noise would go. Actually I think it was being made by the inner waist rail despite sounding like the top, anyway I lost my temper and gave the glass a good push and pull (inside to out, not up and down) when it was about halfway down, noise disappeared and has never come back since.
Hey mate! Just to let you know that I was looking after a solution for this annoying window problem, and your solution has worked perfectly Cheers!
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Old 27th June 2019, 21:24   #27
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I was talking to a lad at work who is into BMWs and he mentioned that German rubber restorer straight away.
How often does it need applying?
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Old 28th June 2019, 16:33   #28
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From the BMW forums:-

Quote:
Originally Posted by BMW Forums

In my experience, it is the simple and effective solution to the window/door noise that most (early?) X3 owners seemed to encounter.
There may be more than one type of noise, but this is the one that is silenced by lowering the window, even by a fraction from its fully closed position.
Early on, many dealers were apparently trying all sorts of solutions, such as realigning the door, often making matters worse.
BMW even had a new, replacement door seal, covered in a bulletin, which also failed to be the full solution - maybe because of installation shortcomings.
I did not have the problem at all until suddenly during year 3. The dealer used Gummi-Pflege (or an equivalent, SA wasn't able to tell me) and it is still fine after nearly 2 years.
He advised me to think of it as a maintenance item.
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Old 29th June 2019, 09:18   #29
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When i was stripping the door cards etc from my donor car, i noticed a rubber tube like part around the top of the front windows with electrical contacts at the bottom (anti-trap safety device type jobby??) could it be the sound of the window glass pushing on this?? (btw mine creak too when glass gets to the top)
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Old 29th June 2019, 19:33   #30
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If we are all talking about the same sound, Neil is right. I can only conjecture that the rubber channels in the windows very slightly wear over time, and smooth out a little, hence giving off the rattling/fretting sound.

This does not seem to happen on any of the other windows in my car, and all of these have pretty much never really been used in the cars life.

Gummipflege in my experience is quite good, it seems to penetrate the rubber a little and make it a little more "sticky".

Its good to know the noise is enough to pi** off BMW owners enough that dealers were replacing seals, re-aligning doors etc, so thankfully its not just us in this thread being ocd.
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