S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

Dash board clock reset

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Old Dec 1, 2018 | 06:15 PM
  #1  
Mags2016's Avatar
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S 320 CDi
Dash board clock reset

Dear all,

i had my right wing mirror not folding .. I disconnected the negative battery terminal and reconnected it again .. the mirror worked perfectly fine but the dash board clock gone 3 hours back .. I tried to reset through the comand from vechile - system - time and date but every time I change the time the dash clock doesn’t move or reset .. any advice?
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Old Dec 1, 2018 | 11:27 PM
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2008 S63
Unhappy

I am also trying to reset my clock for day light savings time. i can change the time in the command center but the dash clock will not change.
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Old Dec 2, 2018 | 01:13 PM
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2009 W221
Welcome to the club :-(
Let me venture a guess: If you try to adjust the date, It won't let you do that either and goes back to March or April of 2003?
It looks like it's happened in many cars, here's more info:
https://mbworld.org/forums/s-class-w...-problems.html

and if you can read German, here's more:
https://www.motor-talk.de/forum/datu...78.html?page=7

Last edited by Hatzenbach; Dec 2, 2018 at 01:20 PM.
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Old Dec 2, 2018 | 02:38 PM
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2009 W221
OK,

I found a workaround on the German Forum:for not being able to set the clock:
When you get into the car first thing in the morning, you have a short time window (maybe 1 min) where you can actually adjust the clock via Command
So wait until the car had a "good night's sleep" and give it a try.
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Old Dec 2, 2018 | 03:34 PM
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S320CDI
Originally Posted by Hatzenbach
OK,

I found a workaround on the German Forum:for not being able to set the clock:
When you get into the car first thing in the morning, you have a short time window (maybe 1 min) where you can actually adjust the clock via Command
So wait until the car had a "good night's sleep" and give it a try.
If that doesn't work for you, try this last resort: https://mbworld.org/forums/s-class-w...ml#post7619070
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Old Dec 2, 2018 | 05:15 PM
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S 320 CDi
That’s absolutely correct it shows April 2003 .. I tried to disconnect negative power terminal the clock goes back to 0.00 I’ll try to do it again by mid night and let you know
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Old Mar 18, 2021 | 01:52 AM
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Hey Guys. Just return to my home in Florida after being stuck up north for 13 months because of COVID-19. My trickle charger was disconnected months ago and apparently my accessory battery went to sleep. I was able to start the car and after waiting for the car suspension to raise I ran into the Analog clock not syncing with my attempted setting. I am going to try all of the suggestions and report back. Thank you.
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Old Mar 18, 2021 | 08:46 AM
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it needs a software update check the recent post about time fix the link to make your own update CD is there

April 2019 WNRO - a satellite date roll over means your can has lost the plot
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Old Mar 18, 2021 | 10:11 AM
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Success on setting my time, date and analog clock

Was able to set my time, date and analog clock within the first minute of entering this morning. Thanks for that heads up.
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Old Mar 18, 2021 | 02:29 PM
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S500
there are two situations where a car without the software update might appear to get the time and date correct

if the car can't see any satellites (like an underground carpark) it may allow manual adjustment of the time and date (but will usually auto correct back to wrong on a drive)
if it see's a satellite that is beaming info it understands, it can temporarily show the right time and date (but will auto correct wrong with 90% of the satellites beaming info it can no longer correctly interpret post April 2019 as they wiz overhead)

a tips doc from Jan 2020 shows the polar bear software fix is now official


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Old Mar 22, 2021 | 04:41 PM
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I did my clock adjustment in a ground level garage and have been driving it since without loosing the time. All is good. Thank you. `
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Old Mar 23, 2021 | 09:47 AM
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if you update the faulty software it just works everywhere like a normal car....
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Old Mar 23, 2021 | 05:45 PM
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Smile Thank you

I will try updating. Thanks again. .
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