2017 SLC 200 Sports Petrol Automatic: I've been advised these are original bulbs. BUT both full beam and dip are noticeably poor/dim barely lighting up country roads at night. Driving lights LED. Anyone know if this is common please? Or advise on the BEST white light bulbs if these can be safely replaced? My first Merc just bought a week ago from Large General Dealer (he says he can't help) One lady owner from new barely done 2000 miles full extras full History Checks several sites done by me ok all counts. PX by owner for new BMW from the dealer's BMW branch. Been searching for a YEAR! Bought fpr less than twenty and to date love it!