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brownspeed
Silverstone


Joined: 09 Jun 2016
Posts: 127
Location: Gods favourite city-Manchester


PostPosted: Sat May 05, 2018 8:56 am    Post subject: Reply with quote

Q) what is the failure mode of these? i.e. what are the symptoms prior to failure?
My drivers side window seems to be getting slower in operation. I wonder if i'm about to suffer the same fate?
any way of preventing failure? apart from not using the window at all.
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deMort
Zolder


Joined: 21 Mar 2015
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Location: Brighton


PostPosted: Sat May 05, 2018 3:36 pm    Post subject: Reply with quote

No real prior warning .. perhaps a wire grateing type noise... you certainly get that noise when it does fail !

Its a steel cable that normally fails .. rusts through .

If you have noticed its slower than usual then it might be on its way out .. or the runners might just need a bit of lubricateing .
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Tin man
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Joined: 03 Aug 2014
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PostPosted: Sat May 05, 2018 3:46 pm    Post subject: Reply with quote

Managed to get an aftermarket regulator today from Euro Car Parts. Still no Delivery date from Porsche.
 
  
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rhino-man
Monza


Joined: 17 Oct 2015
Posts: 233
Location: Kent


PostPosted: Sun May 06, 2018 11:13 am    Post subject: Reply with quote

deMort wrote:
No real prior warning .. perhaps a wire grateing type noise... you certainly get that noise when it does fail !

Its a steel cable that normally fails .. rusts through .

If you have noticed its slower than usual then it might be on its way out .. or the runners might just need a bit of lubricateing .


What would you lubricate the runners with? Is it easy to get the door card off?
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Magic919
Österreich


Joined: 05 Jun 2013
Posts: 909
Location: Berkshire


PostPosted: Sun May 06, 2018 2:17 pm    Post subject: Reply with quote

All of mine became noisy before failure. Some made a crunchy sound instead of the high pitched scrape.

I’ve managed to pull the window up and get it into place with some grippy gloves on, when it failed in the down position.
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deMort
Zolder


Joined: 21 Mar 2015
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Location: Brighton


PostPosted: Sun May 06, 2018 3:22 pm    Post subject: Reply with quote

Any aerosol with PTFE in it .. you need a can with the thin pipe on the nozzle then lower the window and spray a small amount so that it runs down the channels.

Not too much as it will end up smearing the windows .. no big deal but youll need to clean it off afterwards.

EDIT ..

The steel cable in the image is what rusts through , if a few strands break then you can hear a grateing noise as it goes through the rollers .
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rhino-man
Monza


Joined: 17 Oct 2015
Posts: 233
Location: Kent


PostPosted: Sun May 06, 2018 7:51 pm    Post subject: Reply with quote

My drivers window is noisy at the moment hence the lubrication question so I'll give it a go tomorrow.
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deMort
Zolder


Joined: 21 Mar 2015
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Location: Brighton


PostPosted: Sun May 06, 2018 8:00 pm    Post subject: Reply with quote

Its a difficult noise to explain .. its a steel cable made up of a lot of smaller wires .. some of these rust through .. break in other words .. when they go through the rollers they make a cracking grinding noise .. well kinda .

Basically if you have a noise then the chances are its on its last legs .

Without the door car and panel off your not going to be able to prove it and they do tend to fully break pretty quickly .

Lubrication may help if the window is slow .. its not going to help if you have any type of noise that hasnt been there before .

Anything new like a noise usually means theres a problem im afraid .

These days if a customer says something is different i belive them 100% even if i cant find a fault at the time .. you know your cars and something different IS a fault .
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rhino-man
Monza


Joined: 17 Oct 2015
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PostPosted: Sun May 06, 2018 8:38 pm    Post subject: Reply with quote

Thanks Demort, better get it booked in then as its under warranty.
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brownspeed
Silverstone


Joined: 09 Jun 2016
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PostPosted: Mon May 07, 2018 9:19 am    Post subject: Reply with quote

Thanks Ian, since posting I have tried that and it has improved its action; no audible graunching noises so maybe its fixed.
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inchyra
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Joined: 14 Jul 2016
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PostPosted: Tue May 08, 2018 7:46 am    Post subject: Reply with quote

First sign of trouble on mine was that the window went slightly out of alignment - the rearmost top corner of the glass was just catching on the fixed rear quarter glass when opening the door. Few days later a 'bang' when lowering the window and no more operation!
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