Started the ST this evening and noticed the o/s xenon didn't do it's usual auto adjust. Once driving, the beam on the o/s was only lighting about 5 meters of the road ahead. Luckily the n/s was providing some cover. Git home and double checked the lights against my wall, the o/s isn't adjusting when the lights come on. Any ways of checking for faults? I know the sensors ate in the wheel arches, not sure what they look like though. Any idea how much Ford charge to sort these?