At first I thought it was me imagining things but I've now had to adjust my clock about 3 or 4 times since I got the car in April, over a month or so it will lose 1 or 2 minutes. I thought it might have been my watch but I've verified that and my phone and the Z4 clock is definitely slightly slow. Its not the end of the world and something I can cope with but has anyone else come across this?