Long story short, I had a hitch (OEM one) put on among other things and when I picked up the vehicle, I noticed that the bumper was sitting lower and slightly further back on the left side compared to the right. The shop manager told me that you cannot do any adjustments and we looked at two other E53s and they looked the same with the left side lower and slightly back.

I never noticed anything being off before that (mainly b/c I never paid attention), so is this true that no adjustment is possible? Or is there a possibility that the bumper was not put on correctly? If so, what is the trick to get it right?

Here are a couple of pics showing what I mean. Also, no pic but the left side is not as far forward as the right side is.