I know this is not the first post on this but I need some more help! My 02 A4 1.8T is letting in water and soaking the passenger foowell. I removed the tray covering the battery etc but could not get the battery out to clear out the debris properly. Trying to clear from underneath doesn't seem to be satisfactory (and it's bloody awkward working 'blind' without at pit!).

I noticed the battery is held down with a bracket and allen screw but how on earth do you access it? There is a big chunky rubber strip running almost the width of the car (brake pipes in this?), which is clipped to the metal upstand that the tray sits up to. I tried to get access by pulling this up but even then I needed a 10" long allen key (Ok slight exageration maybe but something like that) to undo the battery retaining bracket.

Any ideas? Many thanks