Hi all,first post,so be kind!I have a 1999 318is.85000 miles.Had the radiator changed two weeks ago,pressure test done,all ok(other than the rad obviously).I still seem to be losing coolant,only a tiny tiny amout over 200 miles or so,but it is concerning me.What level should the coolant be at?It's just below halfway at the moment.I have no 'mucky'oil,steam or drips.Any ideas?