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7 Series - F01 / F02 (2009 - 2015)
The 5th generation F01/F02 BMW 7 Series flagship forum. The redesigned 7 series leads off the BMW Fxx chassis code, offering an 8 speed automatic transmission and all turbocharged engine options.

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  #1  
Old 12-08-2012, 01:49 AM
filmoreslim filmoreslim is offline
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Headlamp Moisture

I just took re-delivery of my 2013 F02 with the Lighting Pkg 2 days ago and I noticed condensation inside the exterior glass casing of the head lamp. The car has 2500 miles, 2450 of which were in Europe. Is this normal? Should I take it back and make them replace the headlamps?
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Last edited by filmoreslim; 12-08-2012 at 01:50 AM.
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  #2  
Old 12-08-2012, 03:33 AM
f01driver f01driver is offline
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It's normal because I've noticed condensation inside the housing as well.
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  #3  
Old 12-08-2012, 06:16 AM
Deutsch100 Deutsch100 is offline
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It happens to a lot of cars. It used to happen to my Range Rover and sometimes our Porsche. Don't think my '12 AH750 ever went in the rain. If it does not go away in a day or 2..then take it to the dealer, to make sure there is not a defective seal.
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  #4  
Old 12-08-2012, 06:52 AM
mrbmwx5 mrbmwx5 is offline
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Quote:
Originally Posted by f01driver View Post
It's normal because I've noticed condensation inside the housing as well.
NO! it's not normal .
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  #5  
Old 12-08-2012, 07:04 AM
tarmacterror tarmacterror is offline
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Could be a defective seal and the combination of a high powered jet wash
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  #6  
Old 12-08-2012, 11:41 AM
AdamG13 AdamG13 is offline
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Never noticed it on mine and I've had my car in two very different environments, one which had a very high moisture level (South Florida).
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  #7  
Old 12-08-2012, 02:48 PM
f01driver f01driver is offline
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Originally Posted by mrbmwx5 View Post
NO! it's not normal .
I believe in the manual it says it's normal to have some condensation depending on conditions. I also have condensation in my S5 housing some times, you can always have the dealer to look at it but they'll be very anal about replacing the entire headlamp housing unless it's an occurring problem.
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  #8  
Old 03-14-2015, 08:49 AM
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texgeekboy texgeekboy is offline
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I searched and found this old thread, which reflects my current situation. My wife and I just took delivery of a new 2015 535i yesterday, and noticed condensation last night before it got dark in both headlight housings. This morning, one of the headlights still had a little bit of condensation. I looked at my 2014 750i manual and there is a note that says that it is normal under cool or humid conditions, which is currently the case in Houston.

I'm pretty sure the dealer won't do anything since it is in the manual unless it gets bad.

Does anyone have experiences with this?
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  #9  
Old 03-14-2015, 09:00 AM
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SeeYal SeeYal is offline
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Only times I see this in one of my headlights is after running the car through a touch-less carwash
I just avoid it instead of replacing the headlight and only get the car hand-washed...
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  #10  
Old 03-14-2015, 09:23 AM
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texgeekboy texgeekboy is offline
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Thanks. I believe the car was hand-washed, not pressure washed at the dealer before we picked it up, so I don't think pressure jets could have affected it. It's a nice day in Houston now, so the condensation is gone. I'll keep a look out for it, and add posts if anything changes.

The reason I brought this up is that my wife's previous car, a 2004 Volvo S80 T6 (10.5 years old), developed condensation problems in 1 headlight, and it got bad. It hardly ever dried up.
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  #11  
Old 03-22-2015, 03:57 AM
Sevensonly Sevensonly is offline
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Well....I'm having the opposite effect so to speak. My left rear tail light has moisture in it and is now giving me a malfunction code every so often when I put my blinker on.

I'm "guessing" that the seal is bad because the light seems to move a little. I only go to hand washes and I just went yesterday.
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  #12  
Old 03-22-2015, 07:51 AM
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texgeekboy texgeekboy is offline
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Seven, yeah I'd get that checked out ASAP. A bad tail light is a major source of revenue for the local constable if you know what I mean.
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  #13  
Old 03-22-2015, 08:12 AM
Sevensonly Sevensonly is offline
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Tex,

Without a doubt. Ironically, I was just out back trying to see if I could dry the lens a bit with my wife's hair dryer just as a test. I didn't work needless to say -LOL! I'll be at the shop on Tuesday to get it fixed and hopefully my wiring is okay.
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  #14  
Old 03-22-2015, 08:35 AM
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texgeekboy texgeekboy is offline
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Actually, wouldn't heat applied to the outside of the lens cause the moisture to condense on the cooler inside? That assumes that the lens is mostly sealed except for a pinhole.
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  #15  
Old 03-22-2015, 09:00 AM
Sevensonly Sevensonly is offline
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What I was trying to achieve, was seeing whether or not I could get the beads of water to drop down to see if it rolled out of a corner somewhere. At the bottom of the lens, some did roll out and drip down on the bumper but at the top, it was caught at the midway point. There's definitely a contact/seal issue for sure. The passenger's side is nice and tight.
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  #16  
Old 03-23-2015, 10:23 AM
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SeeYal SeeYal is offline
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Quote:
Originally Posted by texgeekboy View Post
Seven, yeah I'd get that checked out ASAP. A bad tail light is a major source of revenue for the local constable if you know what I mean.

Now, that is funny... Have you noticed Seven's occupation?... State Trooper... Better start writing, Seven... LOL!!!!
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Mr. 29,000th...
2014 Chevy Silverado - daily driver
2012 750LI - wife car
2011 B7...Mine...Precious
2008 535i - now my son's car
2008 335i - lease - returned
2007 750li - retired
2004 545i - retired
1999 Chevy Silverado-retired
1991 Chevy Silverado-retired
1989 GTI-retired
1982 320i - retired
1980 Audi 80-retired
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  #17  
Old 03-23-2015, 10:26 AM
Sevensonly Sevensonly is offline
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Good catch^^^^ LOL!
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