1. I think they will fit but it won’t be the right height.
2. The part for the 16v version is 201 320 44 30, but the regular 2.3 like yours takes a 201 320 41 30. These are superseded number the old number also do not cross either.
3. To do the work, you will also need hex key and a special socket to toque them properly see this pages:
http://www.hazet.de/eng/katalog/suche_3.asp?F=2593%2D19&H=100&U=230
Thai GI sends…