Mine has shoulders on the tensioner (based on the VIN) If it turns out to be moded I will put a bid on your unused tensioner
PS any further joy with your rear leak problem
Dave,
I think you are on the right lines. I am sure that there was a technical bulletin about leaks where the gutter meets the roof and that someone posted it on here once. May be some searching will find it!
I guess i could run a line of masking tape along the roof down near the gutter then give it a good seeing to with sealant, i dont want the gunk showing above the gutter.
Thanks for that, it would point towards "Flange E" in the flow chart so i'll have a look there, my vin number was before they "moved the joint inside" so its possible.