many thanks ridge. sounds like you did the same thing
on mine the bit which sticks out and rest against the clip had worn down the the clip didn't hold it in properly, so replaced the hose.
i bought a trolley jack from argos about £30 that came with a 2 tonne jack, axle stands and chocks
all you do is jack it up as normal, and then place the stands next to the jack, slowly lower the jack and the stand takes its place, do the same on the other side.
you'll need 2 axle stands which look like a camera tripod.
this raises the car enough for you to crawl under and have a good look.
it all depends on how confident you are if you've got basic diy skills then getting it jacked and the sump splash cover off is straight forward, that will then allow you to inspect the inter cooler from underneath.
taking the bumper off is literally 6 screws and 6 bolts, but again details on your confidence.