GLC63s, GLC63, GLC43 AMG SUV and Coupe (X253, C253) 2015 - Present

Condensation on headlight

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Old Sep 2, 2021 | 09:32 PM
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2020 AMG GLC 63s (ordered)
Condensation on headlight

I have noticed a consistent condensation on my 2020 GLC 63S Coupe's right side headlight after we get some rain. It has been raining frequently in the Mid-Atlantic region so this has been going on a few weeks. It happened before but it eventually went away, don't remember how long it took to go away.

Anyone else having this issue?

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Old Sep 6, 2021 | 09:10 AM
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I had the same issue once.
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Old Jan 9, 2022 | 03:01 PM
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gle 350d
Originally Posted by porchetto
I have noticed a consistent condensation on my 2020 GLC 63S Coupe's right side headlight after we get some rain. It has been raining frequently in the Mid-Atlantic region so this has been going on a few weeks. It happened before but it eventually went away, don't remember how long it took to go away.

Anyone else having this issue?

im having the same issue on my gle 350d, what was the outcome of this?
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Old Jan 9, 2022 | 04:13 PM
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Originally Posted by zaidar61s
im having the same issue on my gle 350d, what was the outcome of this?
Some condensation in MB's headlights are actually normal according to the user manual.

https://cimg3.ibsrv.net/gimg/www.mbw...2dabe966aa.jpg

However, OP's one is excessive and clearly a faulty seal. Is yours the same level as OP's?
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Old Jan 9, 2022 | 04:23 PM
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Issue was a faulty seal as others suggested. Dealer tried to repair headlight but condensation came back, then headlight replacement was done and issue was resolved. It was covered under warranty at no cost since the car was about a year old
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Old Jan 10, 2022 | 01:53 AM
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gle 350d
Originally Posted by W205C43PFL
Some condensation in MB's headlights are actually normal according to the user manual.

https://cimg3.ibsrv.net/gimg/www.mbw...2dabe966aa.jpg

However, OP's one is excessive and clearly a faulty seal. Is yours the same level as OP's?




this is mine im sure this is classified as excessive
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Old Jan 10, 2022 | 02:48 AM
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gle 350d
Originally Posted by porchetto
Issue was a faulty seal as others suggested. Dealer tried to repair headlight but condensation came back, then headlight replacement was done and issue was resolved. It was covered under warranty at no cost since the car was about a year old

what repair did they do? was it the gel packs?
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Old Jan 10, 2022 | 11:04 AM
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I didn't ask what the repair was, sorry.
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Old Jan 10, 2022 | 11:44 AM
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Originally Posted by zaidar61s




this is mine im sure this is classified as excessive
Hmmm so that is indeed more than usual, should indeed get it checked
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Old Jan 10, 2022 | 11:50 AM
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Originally Posted by zaidar61s
what repair did they do? was it the gel packs?
Don't fall for the moisture absorber fix, the content of those things may leak because of the headlight's heat, shorting out the circuit board of the control unit of the light.
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Old Jan 10, 2022 | 04:05 PM
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gle 350d
Originally Posted by W205C43PFL
Don't fall for the moisture absorber fix, the content of those things may leak because of the headlight's heat, shorting out the circuit board of the control unit of the light.

yes thank you. ive seen many posts regarding the mercedes repairs on headlights that cause more damage.

i have it booked in for friday hopefully they dont cause an issue
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Old Jan 10, 2022 | 09:02 PM
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Originally Posted by zaidar61s
yes thank you. ive seen many posts regarding the mercedes repairs on headlights that cause more damage.

i have it booked in for friday hopefully they dont cause an issue
I see good luck with the appointment and please keep us all posted.
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Old Dec 14, 2024 | 02:48 PM
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2020 GLC300
Condesnsation in Headlamp

Originally Posted by porchetto
I have noticed a consistent condensation on my 2020 GLC 63S Coupe's right side headlight after we get some rain. It has been raining frequently in the Mid-Atlantic region so this has been going on a few weeks. It happened before but it eventually went away, don't remember how long it took to go away.

Anyone else having this issue?
Yes, I have the same problem on left headlamp after I went to a new carwash. I tried the hairdryer which evaporated 80% of the condensation, but the directional and head lamp bulbs are still out. I have an
appointment to bring it in this week but was preemptively told the entire headlamp might need replacement. Seems like a design flaw that it doesn't vent properly.t
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Old Jan 4, 2025 | 02:10 PM
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Snap !

Hi !

I’ve got a 2019 GLC 63s, I’ve had it for 1 year and the passenger side (uk left) has gotten so bad.
the indicator & DLR don’t work, nor does the adaptive high beam.

yesterday I managed to get a new light fitted under warranty from my dealer but the light still don’t work properly.
they’ve said it now needs the light module changed which I’m going to argue out for the warranty. I don’t know why they didn’t get that in too.
On research there’s 2 per light. Has anyone had this replaced ?
it looks to be a very simple job apart from the fact the front bumper needs to be removed in order to get to the headlight.


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Old Jan 31, 2026 | 12:05 AM
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Yes they are related as the condensation short circuits the headlights which also include the turn signals. You would be well advised to have the truck scanned for codes and or take it to the dealerahip.
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