A belated response. Dunlop have a good site that allows you to put your car details in and get the appropriate tyre details. Also gives pressures etc. see http://www.dunloptyres.co.uk/ourTyres/car/.We had a puncture and on checking the manual does not include tyre sizes or ratings.
Checked with VW and they eventually came up with "235/45R17 94V" as the specified tyre size and rating for a 2.0FSI in the UK.
Strange that ours is on "235/45R17 97W Extra Load" Bridgestone RE050As when these are also produced as 94Ws.