Today I installed the Osram H7 65W bulbs that I ordered. On the pic you see left the new bulb and right the old one. The manual tells shit, if you arent a superhero you cant replace bulbs on this car with the headlights in place. I removed the headlight and part of the front bumper. Couldn´t wait until night and now after a little test I am very very happy with the result, almost 2 times brighter than before and I have tested temperature after driving with the lights for about 20 minutes, the headlamp was still cool from outside. I would not recommend to take higher wattage bulbs than the 65W else the inside of the lamp might melt. If you cant get these bulbs in the US, shoot me a PM.