"1. The headlights are not quite straight and have a shorter beam on
the drivers side. MB service (2 dealers) have told me that this is
normal for the drivers side - weird since none of my other MB' (2000
and 2001 has this)."
In my experience this is normal. I own 2 German cars, a 2001 E-430 and
a 2003 BMW. The driver's side have a shorter beam on both cars (and on
every loaner car that I have driven in the last 4 years (both makes).
The E-430 headlights were calibrated last service, and the driver's side
is still shorter. Like I said, in my experience, this is very normal.
I would be interested in hearing if this is not correct.