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Front LED DRL lights are dimmed

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Old May 19, 2025 | 12:04 AM
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Front LED DRL lights are dimmed

Hey guys,

I just purchased my car 2021 c63s and after just a few days I noticed that my left headlight LED is much brother then the right one.

it seems like the light is dimmed and not as bright as the left one.

any ideas as to why it happening and how can I fix it.

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Old May 19, 2025 | 12:21 AM
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In the picture it looks yellow. Is it yellow in person? White LEDs turn yellow when the phosphor coating that's responsible for the white visible light degrades and changes color. This happens naturally over time, but if it happens prematurely, then the LED was exposed to excessive heat and is basically toast.
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Old May 19, 2025 | 06:21 AM
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Originally Posted by EricC63
Hey guys,

I just purchased my car 2021 c63s and after just a few days I noticed that my left headlight LED is much brother then the right one.

it seems like the light is dimmed and not as bright as the left one.

any ideas as to why it happening and how can I fix it.
LED is cooked, do you have PPF installed by the way?
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Old May 19, 2025 | 09:00 AM
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Originally Posted by Jimmy_c63s
LED is cooked, do you have PPF installed by the way?

I do have front PPF, the car was under the sun yesterday for a meet. Do I need a new headlight or they can replace just the LED ?
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Old May 19, 2025 | 09:01 AM
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Originally Posted by superswiss
In the picture it looks yellow. Is it yellow in person? White LEDs turn yellow when the phosphor coating that's responsible for the white visible light degrades and changes color. This happens naturally over time, but if it happens prematurely, then the LED was exposed to excessive heat and is basically toast.
yes it was under the sun yesterday, I was at a meet and maybe it got toasted.
Do I need to replace the whole headlight or just the LED?
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Old May 19, 2025 | 09:02 AM
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Originally Posted by EricC63
yes it was under the sun yesterday, I was at a meet and maybe it got toasted.
Do I need to replace the whole headlight or just the LED?
Whole headlight replacement. PPF installer heated it up too much
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Old May 19, 2025 | 09:03 AM
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Originally Posted by Jimmy_c63s
Whole headlight replacement. PPF installer heated it up too much
so I should remove the PPF for the future?
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Old May 19, 2025 | 06:39 PM
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Originally Posted by superswiss
In the picture it looks yellow. Is it yellow in person? White LEDs turn yellow when the phosphor coating that's responsible for the white visible light degrades and changes color. This happens naturally over time, but if it happens prematurely, then the LED was exposed to excessive heat and is basically toast.
That's a shame because I was going to say it was module issue. Oh well.
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Old May 21, 2025 | 07:10 AM
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Originally Posted by EricC63
so I should remove the PPF for the future?
No. Find a better PPF installer for your new headlight.

Whoever installed the PPF has heated your headlight too much and ruined the DRL.
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