I have the thule too, thesealso use the holes at the front (the front bar roof clamps have a pin that goes in the holes above the front door frames... and yes these are standard mounts for roof bars, and similar on many car models without roof gutters) and are cheaper than the VW I believe too. They just clamp in the space above theside windows (no holes required for rear clamps)
Thule are also the MASTERS of roof bars... you can't go wrong with a Thule roof bar! Quality in design and construction... I discovered them for my Volvo and went for the same on the up!
Some tips- the rear bside windows have markers on them denoting the area for clamping within DO NOT CLAMP OUTSIDE THESE... These marks are hard to see on the darker tinted rear side windows, but they are there still, I found them on mine.
Use the torque key to tighten the bars onto the roof, but be careful this isnt that easy to tell that you might be overdoing the tightening... i had a cycle torque wrench and used this to ensure i used the correct tightness (it was 3nmI beleive but check with your bars before doing them up please)
I have used helicopter protection tape to protect the paint/body of the car where they clamp...
Here are my roof bars with my sail rigtube on (using fasty quick release winches)
Edited by: Markmod1