I didn't mind doing it on the TL because it doesn't have those expensive leveling/cornering components that move the headlight. I just removed bumper and the ballast from the headlamps, and baked the headlight for a few mins and was able to pop it open. I had re-sealing issues on one headlight (condensation) and ended up having to remove front bumper a second time and re-bake the headlight. I'm skeptic because I imagine doing something like this to the E90 would be detrimental to the adaptive functions.
'10 Mercedes C63 AMG
'09 E90 335i Fully Loaded-Sold