hi i have e350 2010 but usa model not the euro so the head lights are normal bulbs not xenon so i bought aset of xenon head lights and awork shop installed it to my car with the fog led but i have aproblem that when i want to switch the light to more higher ( to make the cars move from my street way or flash them ) it not work !! just in the normal position all the time i mean always in the same normal bright canot make it higeher when i press the higher control !! the man said he already switch the programming for the new model but may be i need some thing called sim or i donot know can any body help me plz ?