Strange dashboard clock behaviour

[Orwic]

Getting in the car (E320cdi 2009) this afternoon (26th OctoberI glanced at the clock. It's reset itself to GMT - it's gone back one hour. Supposedly clocks are supposed to go back an hour on 29th October. So why has my clock gone back 3 days early? Wonder if anyone else has had this issue. It's never happened before.
Just wondering where the time signal comes from anyway - would it be the NPL that sends out time signals to all 'radio clocks'. The auto-adjusting clocks in the house are reading the correct time.

 

[EmilysDad]

the clock in my ML & the clock in my previous R Class weren't clever enough to use RDS to alter the clock. The first time I had it during an hour change the ML did not change until I found a menu setting to tell it to ..... it's always been on the correct week end though.

Even my crappy Astra Gs were clever enough to use RDS for their clock settings ...

 

[V6Matty]

They did it last Saturday/Sunday, never known why but they always do it a week early

 

[Orwic]

They did it last Saturday/Sunday, never known why but they always do it a week early

Thanks for that. Haha - this just shows how unobservant I am. All these years and I've never noticed before!

 

[rf065]

Thanks for that. Haha - this just shows how unobservant I am. All these years and I've never noticed before!

Out of 3 MB's I've owned, none have ever changed early?

 

[Srdl]

@Wighty will know - he has a similar car, similar era

 

[Botus]

you need to turn off the auto time and date - it pulls info from satellites - if you check your cluster setting you will highly likely find the date has the wrong year and it no longer understands whats going on correctly -


an event known as WNRO https://en.wikipedia.org/wiki/GPS_week_number_rollover is a strange extra befalling older satellites due to nasty choice of logic used to calculate the date - in April 2019 they all flipped over the second WNRO episode and most lost the plot miscalculating what year it is - the date of your car is probably saying 2003 because the satellites are lying to the car. It could be simply fixed by a tiny software update to your car so it understand they lies and turn them back to the correct date - but mercedes can't be bothered to offer it for older cars -

W221s got an update because an IT nerd worked out what to do - Merc then adopted it

 

[sonic]

We have owned 6 MB's since 2003, all the clocks changed at the correct day.

 

[EmilysDad]

just checked mine ... still on BST

 

[V6Matty]

The 212 is always a week early, the 246 on the other hand is correct,

 

[Wighty]

I leave it on BBC4/2 I think the time signal comes from there .
My only other suggestion is check in the cars dash settings that the date in the memory is correct ,( so it knows the date it changes BST )

 

[Botus]

in the cluster menus check the DATE, forget the time, its the date that's throwing a curved ball in the mix when it comes to daylight saving changes

AFIK merc only rolled out patches to 2018 or newer cars

https://forums.mercedesclub.org.uk/...di-estate-command-module.198229/#post-2073885

 

[Botus]

We have owned 6 MB's since 2003, all the clocks changed at the correct day.

and tend to do so - SO LONG AS THE BATTERY IS NOT DISCONNECTED - at it retains the date it once had, when it boots after the battery has been off it starts life over again in the new muddled WNRO world

this model went in to first production in 2006 - when the patch in the photo in post #7 is applied, this menu says 423 and the time and date come out normal

 

[Orwic]

Many thanks for your contributions everyone. I'll check that date setting

you need to turn off the auto time and date - it pulls info from satellites - if you check your cluster setting you will highly likely find the date has the wrong year and it no longer understands whats going on correctly -


an event known as WNRO https://en.wikipedia.org/wiki/GPS_week_number_rollover is a strange extra befalling older satellites due to nasty choice of logic used to calculate the date - in April 2019 they all flipped over the second WNRO episode and most lost the plot miscalculating what year it is - the date of your car is probably saying 2003 because the satellites are lying to the car. It could be simply fixed by a tiny software update to your car so it understand they lies and turn them back to the correct date - but mercedes can't be bothered to offer it for older cars -

W221s got an update because an IT nerd worked out what to do - Merc then adopted it

It's due for a service in late December or in January, so I'll ask them to do it then - if they know how!! I've made a habit if saying 'please apply any software updates where appropriate' for years. But whether they do it or not, I'm not sure.