Do you mean this one (click on the pics for full size, not 100% on resizing them)
I fitted one from central panels last year
Absolute B and a half to get the remains of the old one off
I just trimmed back the top so it would fit up into position on the chassis rail properly
You will also find the mounting holes for the bolt are also too big
On the mk5 there is a piece on either side like a large washer, I salvaged these from the old one and transferred them to the new panel
Everything lines up where it should (I'm a touch ocd about that)
Left the welds showing and was straight up with the tester and had no problems getting a fresh ticket