2008 S550 Clock Reset




So the trick is to reset the clock before it has a chance to sync. You can do this by letting the car rest overnight and then first thing in the morning put the car into key position 1 (one press of the start/stop button with your foot off the brake). Once in position one, you can go in and change the time and the analog clock will adjust. I just did this two weeks ago after I changed my starter, works like a charm. Apparently there's no fix for the date, and honestly I really don't care that much, as long as the clock is right.
To adjust time & date make sure the GPS is OFF. Switch off before stopping the engine. Key out,
Key in - turn to pos 1 - (GPS will not start in this pos) .... Adjust time/date/timezone and remove key again. Next time you fire up all is ok --- works for me every time.
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To adjust time & date make sure the GPS is OFF. Switch off before stopping the engine. Key out,
Key in - turn to pos 1 - (GPS will not start in this pos) .... Adjust time/date/timezone and remove key again. Next time you fire up all is ok --- works for me every time.
Last edited by Mike Pierce; Sep 23, 2019 at 10:00 PM. Reason: CORRECTION
So the trick is to reset the clock before it has a chance to sync. You can do this by letting the car rest overnight and then first thing in the morning put the car into key position 1 (one press of the start/stop button with your foot off the brake). Once in position one, you can go in and change the time and the analog clock will adjust. I just did this two weeks ago after I changed my starter, works like a charm. Apparently there's no fix for the date, and honestly I really don't care that much, as long as the clock is right.
So, I went to my local dealership, requesting a fix, they told me that the dashboard clock was defective and I couldn't buy a replacement. This forum saved me from wanting to sell my car. I searched this forum to see what other S550 owners were doing to fix this issue, and came across this solution and it worked like a charm. Thank you MB World Forum, Thank you.
To adjust time & date make sure the GPS is OFF. Switch off before stopping the engine. Key out,
Key in - turn to pos 1 - (GPS will not start in this pos) .... Adjust time/date/timezone and remove key again. Next time you fire up all is ok --- works for me every time.
https://mbworld.org/forums/s-class-w...ml#post8494456






