Anyone else getting condensation in their taillights?

Zim_Zimma · 02-06-2023, 08:11 PM

Same on the other side, but not as bad. I go through a touch less wash often and did today.

FC4 · 02-06-2023, 08:19 PM

Yep. It has become quite normal on most modern cars now.

Zim_Zimma · 02-07-2023, 06:33 AM

This is considered normal?

Boostin335 · 02-07-2023, 08:00 AM

My car the night I drove it off the lot (2023 M4 Comp xDrive) had it in both.

Limegrntaln · 02-07-2023, 09:28 AM

It’s a warranty replacement for headlights. Haven’t heard anyone complaining about the taillights. So, apparently the people with condensation in the tails, are keeping quieter about it.

Forzanerazzurri · 02-07-2023, 09:42 AM

I've never known this to be normal and never seen it on any car ive owned.

Alpine300zhp · 02-07-2023, 12:37 PM

It is not normal. My car has 27k miles on it and it’s seen a ton of rain and car washes. Not a drop of condensation in either head or tail lights. Get this fixed under warranty.

kooft · 02-07-2023, 01:20 PM

I have had some build up and go away. Apparently BMW's have a "membrane" which the light will eventually clear up the water build up. Im not sure how valid this is but it does seem to be a common theme if you search it on the forum. There are other threads with pictures for this topic.

https://g80.bimmerpost.com/forums/sh...5&postcount=10

Zim_Zimma · 02-07-2023, 03:15 PM

Quote:

Originally Posted by kooft

I have had some build up and go away. Apparently BMW's have a "membrane" which the light will eventually clear up the water build up. Im not sure how valid this is but it does seem to be a common theme if you search it on the forum. There are other threads with pictures for this topic.

https://g80.bimmerpost.com/forums/sh...5&postcount=10

Was your build up headlights or taillights? The manual only refers to headlights.

Ilma · 02-07-2023, 05:52 PM

Fog inside headlight lens was considered "normal" by the dealer and they had another car on the lot that displayed the same thing.

Only happened once after I picked up the new car and ran the headlights for the first time.

luckylingy · 02-07-2023, 06:06 PM

Condensation in the taillights isn't normal. None here, and I power-wash the car at least weekly.

I did experience headlight condensation last summer, about the time BMW issued a service bulletin to install a redesigned drain vent. There's a separate thread over in the Cosmetic and Lighting Modification section, IIRC.

Spectrum-Z39 · 03-27-2024, 11:43 AM

For anyone experiencing the taillight condensation issue... I have it as well. Brand new car literally of the showroom floor. Washed the car a week after and noticed the condensation.
Taking to BMW in a week to see if I can get it replaced (going to try to finesse for CSL lights)

kingikra · 03-27-2024, 03:15 PM

Had that in my 2018 M2. Some guys on this forum told me that it is normal but I kept on bugging the service about it and they have replaced them under warrenty. Nothing since.
In my G82 I haven't seen that but saw it when I was at the track on a M135.

Never had or seen it in any other brand that I ever had.

02-06-2023, 08:11 PM	#1
Zim_Zimma Private 97 Rep 61 Posts Drives: BMW M4 Join Date: Oct 2021 Location: Michigan iTrader: (0)	Anyone else getting condensation in their taillights? Same on the other side, but not as bad. I go through a touch less wash often and did today. Attached Images
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02-06-2023, 08:19 PM	#2
FC4 Brigadier General 2680 Rep 3,406 Posts Drives: Yes Join Date: May 2014 Location: US iTrader: (0)	Yep. It has become quite normal on most modern cars now.
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02-07-2023, 06:33 AM	#3
Zim_Zimma Private 97 Rep 61 Posts Drives: BMW M4 Join Date: Oct 2021 Location: Michigan iTrader: (0)	This is considered normal?
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02-07-2023, 08:00 AM	#4
Boostin335 Lieutenant Colonel 562 Rep 1,723 Posts Drives: G82 M4CX, C8, MKIV Supra Join Date: Sep 2007 Location: North/Central NJ iTrader: (2)	My car the night I drove it off the lot (2023 M4 Comp xDrive) had it in both.
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02-07-2023, 09:28 AM	#5
Limegrntaln Major General 13472 Rep 6,962 Posts Drives: 2022 DG/BLk xDrive M4C Wk 34 Join Date: Mar 2008 Location: Sacramento Area iTrader: (3) Garage List 2022 G82 M4 Competi ... [9.23]	It’s a warranty replacement for headlights. Haven’t heard anyone complaining about the taillights. So, apparently the people with condensation in the tails, are keeping quieter about it. __________________ 2022 DravitGrau /Black Full Merino M4 Competition M xDrive / Production Week 34/ Delivered 10/19/21/ IG: dravit_m4_comp YT: G Dubyou
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02-07-2023, 09:42 AM	#6
Forzanerazzurri Banned 6918 Rep 3,277 Posts Drives: E46 M3 Coupe/G80 M3CX Join Date: Jul 2021 Location: Alberta iTrader: (0) Garage List 2003 BMW M3 Coupe [0.50] 2022 BMW M3 Competi ... [5.12]	I've never known this to be normal and never seen it on any car ive owned.
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02-07-2023, 12:37 PM	#7
Alpine300zhp Lieutenant Colonel 1448 Rep 1,719 Posts Drives: 24 M4 Comp RWD Join Date: Oct 2009 Location: South Florida iTrader: (0)	It is not normal. My car has 27k miles on it and it’s seen a ton of rain and car washes. Not a drop of condensation in either head or tail lights. Get this fixed under warranty. __________________ ~ 24 M4 Comp ~ Prior BMW's - Too many to list here (27)
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02-07-2023, 01:20 PM	#8
kooft Private First Class 169 Rep 140 Posts Drives: BMW M3 Join Date: Mar 2022 Location: Los Angeles iTrader: (0)	I have had some build up and go away. Apparently BMW's have a "membrane" which the light will eventually clear up the water build up. Im not sure how valid this is but it does seem to be a common theme if you search it on the forum. There are other threads with pictures for this topic. https://g80.bimmerpost.com/forums/sh...5&postcount=10 Last edited by kooft; 02-07-2023 at 01:21 PM.. Reason: added item
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02-07-2023, 05:52 PM	#10
Ilma Colonel 184 Rep 2,841 Posts Drives: 2008 135i Join Date: Nov 2008 Location: Mississauga iTrader: (0)	Fog inside headlight lens was considered "normal" by the dealer and they had another car on the lot that displayed the same thing. Only happened once after I picked up the new car and ran the headlights for the first time. Attached Images
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02-07-2023, 06:06 PM	#11
luckylingy Lieutenant Colonel 3234 Rep 1,661 Posts Drives: X3M Join Date: Oct 2015 Location: Up North iTrader: (0)	Condensation in the taillights isn't normal. None here, and I power-wash the car at least weekly. I did experience headlight condensation last summer, about the time BMW issued a service bulletin to install a redesigned drain vent. There's a separate thread over in the Cosmetic and Lighting Modification section, IIRC.
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03-27-2024, 11:43 AM	#12
Spectrum-Z39 Spectrum-Z39 0 Rep 1 Posts Drives: BMW M4 Competition xDrive Join Date: Mar 2024 Location: Long Island iTrader: (0)	For anyone experiencing the taillight condensation issue... I have it as well. Brand new car literally of the showroom floor. Washed the car a week after and noticed the condensation. Taking to BMW in a week to see if I can get it replaced (going to try to finesse for CSL lights)
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03-27-2024, 03:15 PM	#13
kingikra Second Lieutenant 122 Rep 278 Posts Drives: BMW M2 Join Date: Apr 2016 Location: Israel iTrader: (0)	Had that in my 2018 M2. Some guys on this forum told me that it is normal but I kept on bugging the service about it and they have replaced them under warrenty. Nothing since. In my G82 I haven't seen that but saw it when I was at the track on a M135. Never had or seen it in any other brand that I ever had.
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