Botus
Senior Member
It seems as soon as the car is switched off then on again it has the right date and the clock can be altered however when you alter the clock or move the car the date reverts. Does seem to be getting better though as when this prob started the date was never right and could not be altered.
I think you need to take it off auto summer winter or you will continue to get frustrated.
I believe the car just picks the date it finds from whichever satellite it comes across first....
if it picks an old one, the date goes to British summer time and between the digital and analogue clocks it goes in a tail spin unsure which to move or which is master - take it off auto switch over, and for the next 5 months it doesn't matter what the date is - when it next finds a satellite beaming out the right date and time, it allows you to line up the two clocks and gets over the issue - temporarily (and should remain on the correct time for 5 months... come BST 2019 I think we should try moving timezone to IRL, or hope Mercedes do a very simple software fix to pick whichever date is the latest)