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Condensation & Bug in Taillight

smsprague

Member
Mar 3, 2014
555
60
Prescott, AZ
So it looks like I have the taillight issue. Is the only fix a trip to service center?

f2a3e8dd5d766140c42f279c766acb89.jpg
 

Cyclone

Cyclonic Member ((.oO))
Jan 12, 2015
5,058
1,143
Charlotte, NC
I don't know if it's the only fix, but my CPO at deliver had probably a dozen bug corpses per taillight. The SvC replaced the taillights for resolve the problem.
 

Cyclone

Cyclonic Member ((.oO))
Jan 12, 2015
5,058
1,143
Charlotte, NC
Not worth a trip just for this so I will probably wait until my 25K Mile service - was hoping their is a DIY fix.

Artsci mention in some thread that he has a DIY yourself for the condensation problem. Whether this would allow for removing the bug first, I don't know. You may want to PM him shoot him to this thread.

Either way, I agree. If the SvC is the only fix, I wouldn't do it until I have to go there for another reason anyways.
 

JPP

Active Member
Feb 4, 2013
3,062
1,289
SF Bay Area, CA
This is different from the longstanding issue with condensation behind the 'double' clear lens for the backup lights. There has been an engineering revision/new applique for about a month or 2 with an opening and no 2nd lens. Existing owners who have significant/recurrent issues can get the applique replaced.
Don't know about a major chronic issue with the taillight system.
 

Terra117

Member
Feb 3, 2015
133
17
Edina, MN
Funny. I detailled my S yesterday, and my wife commented that the bug was still in the taillight.

Months ago we went back and forth whether it was dead or alive. So, dead.

She also asked about the condensation. I said it was fresh, as I just gave her a good wash.
 

mknox

Well-Known Member
Aug 7, 2012
10,103
1,868
Toronto, ON
Took this last week. I seem to get it only on one side after I wash the car or if it's rained heavily. Mine clears up after 2 or 3 days generally.

IMG_0472.JPG
 

smsprague

Member
Mar 3, 2014
555
60
Prescott, AZ
Condensation & Bug in Taillight

Would be fine with condensation but bug looks bad. I may have missed the condensation if not for the bug.
 
Last edited:

mknox

Well-Known Member
Aug 7, 2012
10,103
1,868
Toronto, ON
not acceptable. This is different to the usual reversing light condensation. This may need replacing of the cluster.

I get condensation in my headlights too, but only when it's very cold. The heat from the bulb seems to burn a clear path for the light to shine through:

IMG_1588.JPG
 

mknox

Well-Known Member
Aug 7, 2012
10,103
1,868
Toronto, ON
That would be unacceptable and downright embarrassing for me. Have you asked service to replace?

No, for a couple of reasons. First of all, it only happens when it's really cold, and I suspect when the temperature drops rapidly. By the time I got it in to Service it would have cleared up. It usually doesn't last long. Secondly, I don't think there is a solution. The headlights can't be sealed and (probably) have a drain somewhere to allow any condensation that gets in there to drain out, and obviously ambient air to get in. As such, if ambient air with a certain level of humidity is present, then the temperature drops, the humidity is going to condense out and I don't think there is much you can do.
 

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