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Martian
Sepang


Joined: 18 Mar 2009
Posts: 2937
Location: Bury St. Edmunds

2007 Porsche 997 Turbo

PostPosted: Wed May 01, 2019 11:01 pm    Post subject: Reply with quote

Condensation noticeable on many, one had a little amount of water moving around inside.
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MaxA
Albert Park


Joined: 11 Oct 2015
Posts: 1672
Location: Helsinki


PostPosted: Sat May 04, 2019 1:50 pm    Post subject: Reply with quote

jonno_ wrote:
MaxA wrote:
Shaoxter wrote:
MaxA wrote:
I wrote to deMort about this, in the mistaken belief that there was a fix. In the meantime, can someone point me to a how-to on how to remove/reinstall the rear lights? I plan to dry them out and add some ventilation holes.

Open up the engine lid and undo the two torx screws. That's it!


Brilliant. I'm still new to working on the Porsche... it's the other car that takes most of the time.


It's even covered in the manual - at least for gen 1.
With the right torx (T25 from memory) it's about 90 seconds for the pair 😁


Well, yes, it doesn't take long to remove the light, once the 2x T25s are out. You still need to disconnect the electrics to the assembly, and then remove 7x T20 screws (a long handle helps) from the back, and then pull hard to separate the back from the front. I was afraid that I'd broken it. Certainly startled the dog.

There is a sort of skinny foam gasket which looks a bit loose in places. Once the light has dried out (it's in my sauna), I'll try to dab a bit of glue into the place where the gasket sits to help it stay in place. I also removed a rubber bung from what looks like a ventilation tube on the back of the assembly, and drilled it out to 2mm to allow a bit of air circulation (given the above comments). It all goes back in tomorrow.

Hopefully the light will now stay water free!
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997.2 Carrera4S: white over blue, driven and tracked, seldom clean.

Last edited by MaxA on Mon May 06, 2019 6:14 am; edited 1 time in total
 
  
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Magic919
Barcelona


Joined: 05 Jun 2013
Posts: 1288
Location: Berkshire


PostPosted: Sat May 04, 2019 2:24 pm    Post subject: Reply with quote

There are a couple of circular stickers you can peel off.
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MaxA
Albert Park


Joined: 11 Oct 2015
Posts: 1672
Location: Helsinki


PostPosted: Sat May 04, 2019 3:01 pm    Post subject: Reply with quote

Magic919 wrote:
There are a couple of circular stickers you can peel off.


Thanks, found them!
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M5sime
Newbie


Joined: 02 May 2019
Posts: 32
Location: Buckinghamshire, UK


PostPosted: Sun Oct 27, 2019 9:55 pm    Post subject: Fixed? Reply with quote

Hi - I found this thread while searching. It seems my 997.2 has condensation in both rear lights, I found it in the front lights and even the base of my windscreen tonight after the weather has got cold..

The headlights dry out but the rear lights don’t seems to be..

Is the trick to remove, dry-out and somehow ventilate better?

Best, Simon
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MaxA
Albert Park


Joined: 11 Oct 2015
Posts: 1672
Location: Helsinki


PostPosted: Mon Oct 28, 2019 7:21 am    Post subject: Re: Fixed? Reply with quote

M5sime wrote:
Hi - I found this thread while searching. It seems my 997.2 has condensation in both rear lights, I found it in the front lights and even the base of my windscreen tonight after the weather has got cold..

The headlights dry out but the rear lights don’t seems to be..

Is the trick to remove, dry-out and somehow ventilate better?

Best, Simon


I still have condensation in my right rear light from time to time, but I might try to pull them apart and re-seal with silicon this time.. I suppose that I shouldn't live in a northern climate.
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Billy Bumpsteer
Monza


Joined: 12 Aug 2019
Posts: 160



PostPosted: Mon Oct 28, 2019 7:55 am    Post subject: Reply with quote

2 ways to deal with condensation, seal the unit completely so no moist air can get in or ventilate so that the moist air dissipates. Water leaks are a different problem.
 
  
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M5sime
Newbie


Joined: 02 May 2019
Posts: 32
Location: Buckinghamshire, UK


PostPosted: Mon Oct 28, 2019 8:46 am    Post subject: Out they must come Reply with quote

Looks like I have all four lights to pop out (fronts and rears) on my 997.2 and check the vents etc. The rears seem permanent in a state of condensation. The fronts always cleared. Oddly I noted on the fronts when I sprayed the car with iron x to remove some fallout I got some crystal patterns appearing inside the front headlights.. very concerning!

There is no sloshing water from what I can see (unlike the rear LED I had in my E46 Clubsport and that killed a bunch of the LED segments)..

I have an aftermarket Warranty on my car (Quentin special).. I wonder if I should claim vs 'fix' .. From what I read, they all fail eventually..?

Best

Simon
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jl-c
Monza


Joined: 22 Jul 2013
Posts: 244
Location: Shropshire


PostPosted: Mon Oct 28, 2019 9:40 am    Post subject: Re: Out they must come Reply with quote

M5sime wrote:
Looks like I have all four lights to pop out (fronts and rears) on my 997.2 and check the vents etc. The rears seem permanent in a state of condensation. The fronts always cleared. Oddly I noted on the fronts when I sprayed the car with iron x to remove some fallout I got some crystal patterns appearing inside the front headlights.. very concerning!

There is no sloshing water from what I can see (unlike the rear LED I had in my E46 Clubsport and that killed a bunch of the LED segments)..

I have an aftermarket Warranty on my car (Quentin special).. I wonder if I should claim vs 'fix' .. From what I read, they all fail eventually..?

Best

Simon



good luck with that one, I never got anything out of them, for example output shaft seals weeping gearbox oil. Not an internal seal and you don't need to strip the transaxle apart so not covered! Spent £3K on warranty over 3 years and spent £4K on failed parts not covered!
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Porsche Carrera 2S 2005 black fully Hartech'd!, BMW Z4 coupé 2007 blue, Mazda Eunos 1996 yellow, VW Passat 2014 black.


We all do silly things/make mistakes, it's how we deal with them that sets us apart from animals and Americans.
 
  
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M5sime
Newbie


Joined: 02 May 2019
Posts: 32
Location: Buckinghamshire, UK


PostPosted: Mon Oct 28, 2019 10:21 am    Post subject: Re: Out they must come Reply with quote

jl-c wrote:

good luck with that one, I never got anything out of them, for example output shaft seals weeping gearbox oil. Not an internal seal and you don't need to strip the transaxle apart so not covered! Spent £3K on warranty over 3 years and spent £4K on failed parts not covered!


Hmm.. I guess it was 'insurance' in my mind for anything major.. I will try the DIY option first then!
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Windy101
Spa-Francorchamps


Joined: 05 Jun 2015
Posts: 286



PostPosted: Mon Oct 28, 2019 10:25 am    Post subject: Reply with quote

Drilling a few small holes in the rear cover of the 997.2 rears does help them breathe. Does not stop Condensation, but it clears a lot quicker.
 
  
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M5sime
Newbie


Joined: 02 May 2019
Posts: 32
Location: Buckinghamshire, UK


PostPosted: Mon Oct 28, 2019 10:46 am    Post subject: Reply with quote

Windy101 wrote:
Drilling a few small holes in the rear cover of the 997.2 rears does help them breathe. Does not stop Condensation, but it clears a lot quicker.


Thanks!! Will give that a go..
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Windy101
Spa-Francorchamps


Joined: 05 Jun 2015
Posts: 286



PostPosted: Mon Oct 28, 2019 11:43 am    Post subject: Reply with quote

Remove the rear covers, drill some holes and then put them back on.
 
  
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jl-c
Monza


Joined: 22 Jul 2013
Posts: 244
Location: Shropshire


PostPosted: Mon Oct 28, 2019 12:18 pm    Post subject: Reply with quote

On my 930 took a fishtank air pipe T from the fan housing and ran a pipe to each rear light unit and drilled a second hole in the back of them and never had any issue again. I know there is no compatible fan in the 997 but I would have thought something similar could be worked out? Maybe using engine heat and a small computer fan or similar? Luckily, I don't seem to have this issue with the Dectanes. ( fingers crossed, touch wood etc. Smile )
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M5sime
Newbie


Joined: 02 May 2019
Posts: 32
Location: Buckinghamshire, UK


PostPosted: Tue Oct 29, 2019 3:03 pm    Post subject: Update: Light out, stripped and drying Reply with quote

Hi -

So I have taken the lights out (very easy as per online instructions - 2x T25 screws). Both look in very good condition, but both have the same amount of condensation in (see pic). To split the lights you need a T20 bit and some gentle teasing and the housing comes apart (there is one traditional bulb in each so I assume this is for changing that bulb).

I noted the rubber/fabric seal is naturally very compressed and in the vertical edges where the screws attach to the bodywork I saw dry dirt that was through the seal. So perhaps the base inside edges of the lights get the most water flow here (run-off) and also need the most focus.

I have cleaned the lights and they are drying. I also cleaned the housings within the body work (see pic)..

On one, I have drilled two holes in places I chose that have very little chance of water ingress. I will see how this does over time and will keep the other original experiment. I cleaned the seal and have taken real time to put this back in such a way to not allow any gaps.

Let's see..
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IMG_4186.jpg
 Description:
Rear lights out. Connectors sealed for now and the housings cleaned..
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IMG_4184.jpg
 Description:
Hole drilled on base of light back, near the connector. I drilled another to give some airflow.
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IMG_4180.jpg
 Description:
The bulb holder for the replacement as needed. Only one bulb. T20 screw
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IMG_4178.jpg
 Description:
Light open.. Plenty of PCBs, some chips, surface mount resistors.. Quite a lot for your money!
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IMG_4177.jpg
 Description:
Inside edge, seal and the part where most dirt seemed to have progressed.
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IMG_4176.jpg
 Description:
997.2 rear light with condensation
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Phil 997
Le Mans
Le Mans


Joined: 05 Dec 2015
Posts: 15570
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Tue Oct 29, 2019 6:11 pm    Post subject: Reply with quote

I am impressed you got the lens off the housing , I will watch thins thread to updates on how you get on over time Thumb
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Others Enjoy The Moment Today.
 
  
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M5sime
Newbie


Joined: 02 May 2019
Posts: 32
Location: Buckinghamshire, UK


PostPosted: Tue Oct 29, 2019 6:46 pm    Post subject: Reply with quote

Phil 997 wrote:
I am impressed you got the lens off the housing , I will watch thins thread to updates on how you get on over time Thumb


Hi - it’s not the lens (this is bonded). The back cover comes off with screws..
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FZP
Estoril


Joined: 18 Jan 2015
Posts: 3901
Location: Cheshire


PostPosted: Tue Oct 29, 2019 6:56 pm    Post subject: Reply with quote

The rear lens can be separated with a heat gun and interior trim removal tools, in the same way you would with the headlight lenses. But not necessary for the task above. Great work
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997.2 Carrera 2S GT Silver/Cocoa.
 
  
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Phil 997
Le Mans
Le Mans


Joined: 05 Dec 2015
Posts: 15570
Location: Bournemouth,Dorset

2009 Porsche 997 Carrera 4S

PostPosted: Tue Oct 29, 2019 8:13 pm    Post subject: Reply with quote

M5sime wrote:
Phil 997 wrote:
I am impressed you got the lens off the housing , I will watch thins thread to updates on how you get on over time Thumb


Hi - it’s not the lens (this is bonded). The back cover comes off with screws..


Ah that makes sense Thumb but also interesting to note that a heat gun and trim tool will get the lens off . Thumb
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hopeydaze
Monza


Joined: 06 Jan 2012
Posts: 177
Location: Wargrave, Berkshire, UK


PostPosted: Tue Oct 29, 2019 9:33 pm    Post subject: Reply with quote

What size holes are y'all drilling?
 
  
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