People My 124 Estate has a "drain" hole directly under the spare wheel. I am guessing that this should have a bung/grommet in it? Unless being used to drain water from a wet spare wheel? Can anybody confirm please. I am guessing that this may be the source of some (if not all) of my rear end condensation. I have a good tailgate seal and also had all the rear windows seals replaced and rust spots removed.