Hi mate @@bignev not a problem, we're all learning as we go so no worries! Yes, the wiper scuttle and full assembly comes out and I'd done that so many times for various fixes, changing the coil springs, dampners, etc, to get access to the top bolt. So yes, when we attempted the thermostat (twice!) we had that out, I was lying on top of the engine reaching down, from memory (I didn't take pics unfortunately) that I could just reach the thermostat (I thought it was 3/4 way down the engine, but see pics below) but it's that close to the bulkhead into the cabin that getting a regular spanner/socket on there was next to impossible so couldn't get the purchase on the bolts to free them. Since it's been a while (And I sadly don't have my GV any more) I've looked up a couple of pics, so the thermostat looks like: So the 3 or 4 bolts sit beneath the main pipework. And the engine: So you see it top right, not as low as I thought, but getting access to it is the problem as the exhaust manifold is directly below it blocking access from underneath, and from the top your spanner can't get in! Well at least mine didn't! But I know it's possible as there are others that have confirmed they've managed. Ah well, not an issue for me anymore as unfortunately mine is long gone (And I'm stuck with a Zafira now) Cheers, Andy