No Pandaf,
Unfortunately a VW Golf Mk4 has roof bars attached by bolts that go through from underneath. You apparently have to remove plastic covers on the bars to reveal the nuts, which can be removed from the outside, but then you have to draw the bolts out from below.
But a few neat holes in the head lining would not be a problem I'm sure, ...just big enough to fit a 13mm socket through to access the bolt heads. I can finish the holes with blanking caps or closed rubber grommets if I drill them the right size.
Mk4 wagon roof bar delete howto? - TDIClub Forums
I'd like to be able to take the bars on and off without removing the head lining.