yeah.. i had a mercedes from around 2006 which got the clock via GPS sat .. most mercedes models with this system are now unable to get the right time and you cant set it manual.
some automatic models have winter/summer change , so you are driving in summer with winter mode on, kickdown etc is disabled by software
no fix since more than 15 years. they just ignore it ! you can go to mercedes and they know the problem for more than 10 years, but they are unable to fix it because the company who made the systems cant do it anymore ! they already trashed all equipment.
S-Class (W221) - GPS Time Rolls Over Tonight - This will be interesting... Since October, everyone with a COMMAND NTG3 head unit has been dealing with issues related to the date and time. This was caused by a bug in the interpretation of the received GPS Time signal: On October 21, 2018, the...
mbworld.org
there are also some old garmins which have the same problem !