just being trying to remove battery in my R reg A4 (ended up charging it in situ), but then noticed a clear plastic tube about 1 foot long that comes out of hole in metal next to battery at left then goes to nowhere (currently !). It was behind or under the battery before I presumably dislodged it. It has a right angle plastic end on it looks like it should plug in somewhere. Any ideas what it is or where it goes ? Drainage maybe ?
thanks Rik