the width of the needle

I had some fun experience last night. Thought I'd share it here.short flight from LOWI to EDDM in pmdg700. Ok weather (AS2004) at take off with a low cloud layer but as I headed north, I found myself over a thick deck of cloud. With my descending into it, visibility decreased rapidly. Munich ATIS reported a 5-5 temp vs. dew so I knew I'd expect a near 0 visibility. And that's what I got. Runway 8s in use but I just could not make it. I think (not sure) that the ILS on runway 8s are reversed so glideslope was not helping. I ended up over flying the runway at 120 feet (could not see anything AT ALL!) and circled to aim for runway 26R. Teardrop turn and estabilished on ILS. Visibility was absolute 0. The ILS track on my display is a bit to the left of centerline at the last moment. I hand flew it and tryed my best and ended up touching down in the touch down area but with my right landing gear outside the runway.Even when I came to a stop I could not see a thing outside my windows. Not even the runway itself.I once heard from my instructor that "on approaches, all the tolerance you have is the width of the needle". I am glad I prooved it in my sim but not in real life.Jason Zhang