haha, no mate. those four bolts allows you to remove or move the top mount intercooler (the big black radiator looking thing in the middle of that pic) so you can access the spark plugs and leads. once you've undone those bolts, loosen up the circlips holding the hoses on and you'll be able to swivel the intercooler up so you can access the plugs and leads. you can see one of the leads to the left of that pic, just next to the rocker cover filter. once the intercooler is up in the air or remove, you'll see four of those. thats the leads, which you can literally just give a tug and they'll pop out. you'll then have a direct view of the plugs, well, with the use of a torch, so you can see if there's any water in there. the leads look aftermarket (big chunky blue NGK/Magnecor items from the looks of it), so it may just been that they aren't in position properly, thus allowing water in. either way you wont need to replace them as they've obviously been done recently. the only tool you'll need to get the plugs out is a plug removal tool, as i said its a few quid, however look online for instruction and torque figures for the plugs as you really REALLY dont want to overtighten them. you'll know if they're undertightened however, as it'll either not run, or run like a bag of shit.