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Strange Dark Streaks Behind Wheel Well On Drivers Side

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Old 10-28-2018, 06:03 PM
  #16  
edkwon
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Originally Posted by JR956678
I too believe that this is the case and it seems to be a common "affliction" of the TTS. I first saw it on mine when the car was brand new and read comments that it is windshield washer fluid. It's most noticeable after "energetic" driving. Gradually the problem subsided, right up until I had an oil change, and it started back up again. Looking at the work order I saw that the dealer had topped off the windshield washer fluid.

I used a turkey baster to remove some of the fluid and the problem got less noticeable and is ALMOST now gone, but occasionally can still be seen after energetic driving. I will probably run the washer a few times the next time I wash the car.

Not just a TTS issue, it's been seen on ANY MODEL 991 as well I've seen it on my 981 Cayman.
Old 11-04-2018, 06:38 PM
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C.J. Ichiban
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it happens on all 991's and some of the 4 door cars also.
Old 11-04-2018, 07:35 PM
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abiazis
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Happened on my Cayenne GTS
Old 11-04-2018, 10:52 PM
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bigrpowr
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how did you guys bleed the fluid without just running the windshield cleaning til it was low enough ?
Old 11-04-2018, 10:59 PM
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Phil T
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Originally Posted by bigrpowr
how did you guys bleed the fluid without just running the windshield cleaning til it was low enough ?
Drive around with the fill cap off and scroll through the menus until the G meter comes up. Have fun and report back......Lol.......Phil
Old 11-05-2018, 12:31 AM
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bigrpowr
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Originally Posted by Phil T
Drive around with the fill cap off and scroll through the menus until the G meter comes up. Have fun and report back......Lol.......Phil
well played sir !
Old 11-07-2018, 03:46 AM
  #22  
uzj100
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Default Washer fluid

Originally Posted by bigrpowr
how did you guys bleed the fluid without just running the windshield cleaning til it was low enough ?
Just use a turkey baster
Old 10-29-2019, 02:13 AM
  #23  
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What was the result of the experiment? Mine does this too.

I looked at the washer fill reservoir by removing the cosmetic panel under the frunk but you can't see too much. However there does appear to be a "neck" in the washer filler so perhaps there is a joint that the washer fluid is able to slosh out of under loads?

I can't detect anything wet in there, the washer fluid cap is secure, and there are no puddles. I did notice the fluid was frothy after aggressive driving.
Old 10-29-2019, 11:40 AM
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Randyc151
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Originally Posted by vincenz0
What was the result of the experiment? Mine does this too.

I looked at the washer fill reservoir by removing the cosmetic panel under the frunk but you can't see too much. However there does appear to be a "neck" in the washer filler so perhaps there is a joint that the washer fluid is able to slosh out of under loads?

I can't detect anything wet in there, the washer fluid cap is secure, and there are no puddles. I did notice the fluid was frothy after aggressive driving.
This is a known and settled issue. It will eventually spill out to a level that will not continue the issue, and just don't overfill it again. If you had to remove some fluid for your piece of mind, a turkey baster does a suitable job. This is not a big deal.
Old 10-29-2019, 02:18 PM
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Dantez0104
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Originally Posted by Randyc151
This is a known and settled issue. It will eventually spill out to a level that will not continue the issue, and just don't overfill it again. If you had to remove some fluid for your piece of mind, a turkey baster does a suitable job. This is not a big deal.
I'm happy to report back (after a year or so, lol) that it was indeed from the windshield wiper fluid tank. I removed a significant amount of fluid (about 3 x 1 liter sized water bottles) and the problem has never come back. Although I'm not sure how you accomplish that by using a turkey baster as the tank resides way down in the fender. I used a flexible hose and siphoned it out. But all is well now.
Old 10-29-2019, 03:28 PM
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Originally Posted by Dantez0104
The responses posted above are similar to what I've been reading online, however I think its absurd that no clear or definitive source can be found. I mean there is clearly seepage from somewhere. What I will do is remove all the water from the windshield washer reservoir and drive the car in that condition for a bit. If there are no more streaks, then I will fill the tank back up and drive it some more. If the streaks reappear then the culprit is clear. Keep you all posted...
I have had a dozen of these cars as have some of the other posters that are telling you it is the windshield washer reservoir. Fairly common on all 991 and had it a 997 TT also. You can run a controlled lab experiment but if you reduce the amount of fluid not empty and it does not reoccur why do step 2?
Old 10-29-2019, 10:42 PM
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neil.schneider
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I am on my 5th. I have never seen this.
Old 10-30-2019, 08:55 AM
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Your washer reservoir is not over filled. I don't have it either. But when the dealer overfills it will happen.
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