Electric windows
Electric windows
Author
Discussion

wonderland

Original Poster:

97 posts

258 months

Wednesday 9th March 2005
quotequote all
Mornin' all... my passenger side electric window has started slowing down as it's lowered to the point where by the time there's about 6" to go it's barely crawling down. The drivers side is fine however. Anyone know if the two windows are controlled off 2 seperate relays or motors or why one would slow down and not the other. Even more confusing is why it starts off fine but slows down the further it's lowered...? Not a big problem, just something to look at on the weekend!!

Cheers!

GreenV8S

30,999 posts

308 months

Wednesday 9th March 2005
quotequote all
It is probably a simple (they never are) mechanical problem causing friction between the glass and the runner. To start with, I suggest you apply some rubber lubricant (basically silicone grease) to the window runners and see if this helps.

wonderland

Original Poster:

97 posts

258 months

Wednesday 9th March 2005
quotequote all
Figured it might be something really simple, even down to glass thickness and the tightness of the rubber strips along the door!!

KentishS2

15,169 posts

258 months

Wednesday 9th March 2005
quotequote all
Fairly normal at some point for this to happen with an S to be honest.

To resolve, take your door panel/s off and liberally spray the channels and all moving parts with WD40, raise and lower it a few times and it should run free. Wipe off all excess WD40 and leave to dry. Then spray liberally with a silicone based lubricant.

Don't leave large amounts of WD40 on the rubbers for too long as it does start to soften and expand them.

Incidentally, one of my handy hints for leaking oil seals is to spray WD40 onto a tired rubber seal to rejuvinate it, this often works well and provides a permanent cure.

Anyway, you should find that your window is free running after you have done this.

wonderland

Original Poster:

97 posts

258 months

Wednesday 9th March 2005
quotequote all
Thanks, excellent advice. If I remember correctly there's an instruction for removing door panels on www.tvrsseries.com

Lovely, had nothing better to do on my day's off anyway!!

KentishS2

15,169 posts

258 months

Wednesday 9th March 2005
quotequote all
Peter,

I wouldn't advise using any kind of "grease" that remains in the channel.

This is a bad move as it will only attract dirt over time and make the problem worse.

It's best to use the WD40 to clean away old lubricant and dirt and then apply a silicone spray as this evaporates and leaves a thin film of non-sticky silicone, you could use a PTFE based spray instead if you like as this has similar properties.

wonderland

Original Poster:

97 posts

258 months

Wednesday 9th March 2005
quotequote all
Great, cheers Kentish

KentishS2

15,169 posts

258 months

Wednesday 9th March 2005
quotequote all
wonderland said:
Great, cheers Kentish


You're very welcome!

I've recently done mine and also my daily driver which had a slow and creaky window, not anymore though

Podie

46,647 posts

299 months

Wednesday 9th March 2005
quotequote all
KentishS2 said:

Don't leave large amounts of WD40 on the rubbers for too long as it does start to soften and expand them.


Don't use WD40 on the rubbers at all.

You can get silicone lube ( "lube" ) from Halfords for about a fiver... makes the operation as smooth as the proverbial infants arse.

KentishS2

15,169 posts

258 months

Wednesday 9th March 2005
quotequote all
Pod,

The only reason I personally use the WD40 first is to clean off all the old grease and dirt before applying the silicone spray but I agree that it is a MUST to clean off all the WD40 with a rag and ensure that it is dry before applying the silicone spray.

Podie

46,647 posts

299 months

Wednesday 9th March 2005
quotequote all
KentishS2 said:
Pod,

The only reason I personally use the WD40 first is to clean off all the old grease and dirt before applying the silicone spray but I agree that it is a MUST to clean off all the WD40 with a rag and ensure that it is dry before applying the silicone spray.


Furry muff... I just avoided using it all together.

KentishS2

15,169 posts

258 months

Wednesday 9th March 2005
quotequote all
Podie said:


You can get silicone lube ( "lube" ) from Halfords


Ere ...you been reading my BMW "freds"!

You taking the Mick?

Come on outside, you won't be needing your coat

KentishS2

15,169 posts

258 months

Wednesday 9th March 2005
quotequote all
Podie said:

KentishS2 said:
Pod,

The only reason I personally use the WD40 first is to clean off all the old grease and dirt before applying the silicone spray but I agree that it is a MUST to clean off all the WD40 with a rag and ensure that it is dry before applying the silicone spray.



Furry muff... I just avoided using it all together.


I had so much "crud" on mine that I needed to soften all the old grease and dirt and clean it off with something

GreenV8S

30,999 posts

308 months

Wednesday 9th March 2005
quotequote all
KentishS2 said:
I wouldn't advise using any kind of "grease" that remains in the channel.
...
It's best to use the WD40 to clean away old lubricant and dirt and then apply a silicone spray


I strongly advise against using WD40 or any other oil based cleaner/lubricant, as it rots the rubber making it swell and jam the window. (This is why your oil seal rejuvenation trick works.) Even if you intend to clean it off later, I don't think you could realistally get rid of it completely unless you strip the whole thing down. In any case WD40 doesn't make a particularly good cleaner and if you do want to clean it, a conventional detergent/degreaser would probably be a better bet. The grease I was referring to is designed to be applied in a thin film (not as a big sticky blob) and sounds similar to the spray grease you mention. I agree it would be counter productive to leave large amounts of grease there, but you do need to leave a film.

Podie

46,647 posts

299 months

Wednesday 9th March 2005
quotequote all
GreenV8S said:

KentishS2 said:
I wouldn't advise using any kind of "grease" that remains in the channel.
...
It's best to use the WD40 to clean away old lubricant and dirt and then apply a silicone spray



I strongly advise against using WD40 or any other oil based cleaner/lubricant, as it rots the rubber making it swell and jam the window. (This is why your oil seal rejuvenation trick works.) Even if you intend to clean it off later, I don't think you could realistally get rid of it completely unless you strip the whole thing down. In any case WD40 doesn't make a particularly good cleaner and if you do want to clean it, a conventional detergent/degreaser would probably be a better bet. The grease I was referring to is designed to be applied in a thin film (not as a big sticky blob) and sounds similar to the spray grease you mention. I agree it would be counter productive to leave large amounts of grease there, but you do need to leave a film.


Hey Kentish...


KentishS2

15,169 posts

258 months

Wednesday 9th March 2005
quotequote all
Blah to you Pods!

Come on let's have a big debate about this!

I disagree, the WD40 is ok on rubber if you wipe it off again within a few minutes and I wouldn't generally use it where it couldn't be wiped off but as Peter says there is probably another cleaner you could use to a greater effect ....methylethylketol perhaps, your window rubbers will no longer be a problem if you use that

No seriously now, the rubber is thick enough for it not to be a problem as long as you don't do it repeatedly and ensure you clean it off again. Isopropanol is another good cleaning solvent but that is probably more aggresive than WD40.

KentishS2

15,169 posts

258 months

Wednesday 9th March 2005
quotequote all
Podie said:

GreenV8S said:


KentishS2 said:
I wouldn't advise using any kind of "grease" that remains in the channel.
...
It's best to use the WD40 to clean away old lubricant and dirt and then apply a silicone spray




I strongly advise against using WD40 or any other oil based cleaner/lubricant, as it rots the rubber making it swell and jam the window. (This is why your oil seal rejuvenation trick works.) Even if you intend to clean it off later, I don't think you could realistally get rid of it completely unless you strip the whole thing down. In any case WD40 doesn't make a particularly good cleaner and if you do want to clean it, a conventional detergent/degreaser would probably be a better bet. The grease I was referring to is designed to be applied in a thin film (not as a big sticky blob) and sounds similar to the spray grease you mention. I agree it would be counter productive to leave large amounts of grease there, but you do need to leave a film.



Hey Kentish...




Am I argumentative

Oh no I'm not

Podie

46,647 posts

299 months

Wednesday 9th March 2005
quotequote all
KentishS2 said:
Blah to you Pods!


Only having a laugh mate.

KentishS2

15,169 posts

258 months

Wednesday 9th March 2005
quotequote all
Podie said:


KentishS2 said:
Blah to you Pods!




Only having a laugh mate.



I know and I forgive you for that

On the whole I wouldn't advise using WD40 as a lubricant on any thin rubbers, especially if they are to be used as a form of birth control

>> Edited by KentishS2 on Wednesday 9th March 15:33

Rockey

161 posts

254 months

Wednesday 9th March 2005
quotequote all
Wouldn't use any kind of silicone spray dirt and crud just sticks to it, I have found the best option is to clean them first and apply some Talcum powder to the channels, it works and as a bonus smells quite nice