Should be able to get them from VW. if the engine is a 1.8 it is KR engine code, 6A or 9A or ABF if it's 2 litre. I think the throttle body mounts the same on all the models as the inlet manifold is the same.
N100 737 01 Allen Key Head Bolt. M8X60 4 required.

037 133 073 A Gasket for throttle body to inlet manifold
