Weird ILS high beam behaviour

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Old Dec 8, 2024 | 05:57 AM
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2011 C250 CDI
Weird ILS high beam behaviour

I have a weird behaviour with my high beams C204 Facelift with ILS, the low beams are fine and light up the road nicely, however when I switch to high beams (does not matter, whether automatic or not) it cuts the left beam lower, meaning that it illuminates only a small portion of the road, while it lifts the right beam higher (as you would expect with high beams), ILS is turned on, car is in Left Hand Drive Traffic, the behavior does not change if I switch from LHD to RHD or turn ILS on or off, during startup, the headlight do their little dance of up and down, left and right, any ideas what could be causing this?
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Old Sep 15, 2025 | 08:37 AM
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2011 C250 CDI
The issue was that one of the headlights was from a UK vehicle, most likely a poor make over, replacing it with an EU one solved the issue.
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Old Sep 16, 2025 | 08:46 AM
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2013 C204 C250 Coupe
Thanks for bothering to update with the solution 👍
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Old Oct 27, 2025 | 05:00 PM
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Thank for this solution you shared.
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