Changed D1S bulbs today, man once I started with the job and removed the first I regretted why I even started this job DIY, there's literally no space for hands to fit and the plugin cables are so short U basically can't move. U basically need to learn the inside of they bay and work blind by feeling the parts with your hand and still worry about damaging the bulb, putting back the wire clips was a bit###c too. But doing the 2nd one was much easier.