kanaanmeister

Has anyone successfully removed moisture from a 991.1 taillight or is the only option to replace? And if it needs replacing, would the dealership replace the taillight under cpo?

CubsFan1

Is it happening all the time of only under specific conditions? For example, only after the car is washed, and or a certain temperature outside.

I would get some moisture in my taillights (991.1 GT3RS) at times. Wasn’t as much as what you have pictured, but there were some traces…and it always dissipated.

kanaanmeister

I purchased the car exactly one week ago and this moisture has been there since.

CubsFan1

Is it only visible on the passenger side or both?

If you purchased it CPO it should be covered.

From what I recall, the lenses are vented, but doesn’t mean one can’t become defective.

On my RS, I always chalked it up to temp differentials and the fact an extreme amount of heat comes off the back of the car.

In any case, the lenses are easy to source new and used.

kanaanmeister

just on passenger side on the rear and car is cpo till end of January. I’ll try my luck with the dealer.

CubsFan1

You should be covered, especially if this persists and is like that when you take it in. Take a video and some pictures now that you can share with your sales associate and service adviser. Take a shot of the entire rear end so it clearly indicates one side is fine and the other holding moisture.

Jim M.

I had a 928GTS that held water in the bucket depressions in the bumper cap, for the rear tail lights. I removed the tail light and drilled a hidden hole in the bumper cap, eliminating the standing water. I then used alcohol to rinse out all the water in the tail light assembly. Worked like a charm and never had moisture in the light again. Your 991 tail light is a sealed unit, so I don't know if you could flush out the moisture with alcohol. I'd have to take a closer look at my tail lights. Worth a try if you could get the alcohol in and back out easily. However, I agree a CPO fix is the best option.

polobai

In my experience CPO wouldnt cover it unless it gave a fault (as then its a safety issue). It eventually popped the fuse and the dealer replaced.

fpb111

Turn the lights on every time you drive it for the next couple of trips. The heat generated will dry it out.

fpb111

Or move the turn signal to “right turn” and the parking light will turn on. Leave it on over night, that should be long enough to dry it out. Of course only do this if you have your battery maintainer plugged in.