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C117 Headlight coding issue arrrgghh!

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Old Feb 2, 2025 | 05:46 AM
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C117 Headlight coding issue arrrgghh!

Hi guys,
I wonder whether anyone has any suggestions to help?
My 2016 cla 220d headlight control unit stopped working and our MB approved garage have bought a new one.
Problem is they can't scan the QR on the headlight unit (because it is smudged, the headlight has been tested and is definitely working) Because the headlight QR wont work they can't code the control unit to the headlight.
The garage have raised the issue with MB who advised only option is to buy a new headlight unit, which is going to cost nearly £1000 after installation costs.
Surely this cannot be right? Absolutely gutted. Hoping someone has a solution, thank you
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Old Feb 2, 2025 | 07:06 AM
  #2  
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W213 All-terrain
Try those,

Left

HLI6Ch600C3Ch55B00Ch43800Ch34200Ch200C0Ch100C1CS46 A1178206761Q001ZGS008

C05A00C13800C30709CS03


Right


HLI6Ch600C3Ch55B00Ch43800Ch34200Ch200C0Ch100C1CS46 A1178206861Q001ZGS008


C05000C13800C30712CS74
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Old Apr 26, 2025 | 01:10 AM
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Did u get it solved? Here is how

Originally Posted by SH1979
Hi guys,
I wonder whether anyone has any suggestions to help?
My 2016 cla 220d headlight control unit stopped working and our MB approved garage have bought a new one.
Problem is they can't scan the QR on the headlight unit (because it is smudged, the headlight has been tested and is definitely working) Because the headlight QR wont work they can't code the control unit to the headlight.
The garage have raised the issue with MB who advised only option is to buy a new headlight unit, which is going to cost nearly £1000 after installation costs.
Surely this cannot be right? Absolutely gutted. Hoping someone has a solution, thank you
No this just Mercedes in a nutshell, if is working why does it need coding?????

You can buy new module yourself they exist as PnP only downside is no communication with diagnostic.
http://www.oemxenonshop.com/Mercedes...placement.html

good luck

Last edited by SuperChargerE55; Apr 26, 2025 at 01:12 AM.
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