Hi everyone

I have a 2025 US spec GLS450, I have RJ Automotive from the UK to activate the Multibeam feature first thing after I pick up the car.
(only Auto Highbeam available in the US, which is only available with full highbeam on or off, unable to activate individual LEDs)

But I have noticed the bottom 3 high beam reflectors are permanently disabled once I have coded the headlamps to Euro spec,
The reflectors will not turn on either in Auto or manual mode when I pull the stock

I checked with RJ regarding this, and they answered that those 3 reflectors will activate when the condition is suitable, which I have not seen after they coded the headlamps ( about 6 month )

I want to ask any non-US-spec GLS owners with the activated Multibeam feature if the bottom reflector will turn on when you pull the stock, or while you are driving in a dark area to increase brightness on the road

Thank you in advance

It's a software issue with the firmware of the headlight module that is coded when you enable. There is another thread on this and a different coder got it working fine.

https://mbworld.org/forums/gls-class...-function.html

Thank you for helping me out out !!!!

I will see if RJ will be able to fix this issue

I wonder if that's the fog light set of LEDs.