Just purchased my first BMW vehicle. It's a used '04 645ci. So far I'm just getting to know the car. One of the things I've noticed is that the low beam's are exceptionally low (it is very easy to over drive them). Is there a way to easily adjust them without the using a dealers service? Also my vehicle doesn't have its day time running lights enabled (it's a US vehicle). Is this something I can enable myself?

Finally, one observation I made is that when driving over rough surfaces in cold weather the car seems to wiggle a bit. I'm not sure if this is a normal with the 18" run flats.

Thanks in advance for your help/input.2004 BMW 645ci coupe