I'm replacing the front suspension on an Volkswagen MK5 GTi.
There's three bolts which secure the top strut mount to the engine chasis. I've removed two of them, but the third one is spinning without loosening. There's a nut built-in to the strut mount which I am struggling to find a way to grip, due to very limited space in the wheel arch. It's so close to the rubber of the mount that I can't get a socket over it. Open end of a spanner fits, but can't grip due to limited space.
Do I have any options other than angle grinding the head of the bolt off?
Here's a picture of the strut assembly, bolts #9 on the diagram are the ones in question.
Thanks for any help.