Mini battery completely empty – resting currents

Moin. I have the following problem with a Mini One petrol engine, BJ 2004: the battery drains itself, period about 3 weeks. It has happened several times, today the battery was so dead that it didn’t even push anymore, because there was so to speak zero voltage. No consumers were left on, also the radio is switched off. I did a rest current measurement, the result is the following: shortly after clamping the multimeter: 510mA after some (but with various The following fuses have reduced the rest current: F21 (combiinstrument) : 500 -> 260mA F24 (alarm): 260 -> 210mA F27 (radio): 260 -> 160mA, in the second attempt 260 -> 173mA . The relays for the windscreen wiper and the fog lamp in the engine compartment have not been solved – does one know if and how they go off? My questions are: 1.: is a rest current of 110mA (on less is the ru After all, this is about 2 Ah per day and theoretically would be a 60Ah battery as it is empty in there after 30 days. 2.: is it normal that the resting current is at first 510mA and eventually goes down on its own? 3.: are the three mentioned consumers known causers of resting currents? Are the measured changes an indication of a defect of one of these consumers? 4.: if no, does anyone have an idea what it may still be? Greeting, Florian