2006 ML350 headlights?
https://www.youtube.com/results?sear...dlamp+cleaning
If you want maximum output, a retrofit is your best option, though it takes a fair bit of work. See this: https://mbworld.org/forums/r-class-w...-retrofit.html
If your headlight lens are yellowed, the restoration procedure will bring back some brightness. Keep in mind that you will need to do this about once a year once you start.
If you have halogen headlights, there are brighter bulbs available with the tradeoff of shortened lifespan. Halogen bulbs also get dimmer as they approach end of life.







