S600 Japanese comand replacement with EU unit
1. If I buy a second hand one on ebay, NTG3 version, can I simply swap it with the Japanese one. Without coding.
2. Can I swap it with NTG3.5? I do not have a split screen, but it is not so important. Is anything else needed? Is wiring for 3 and 3.5 different?
3. Anything else to consider?
Thank you!
Merc do not update comand or indeed any part of the car when they are at dealerships.... and in any case you can't flash the comand to EU or USA its different hardware (and that wiring)
every single module on a Merc is a one at a time update, that means it might be 100hrs of workshop time to update the car - but unless u want that, there aren't that many that should be updated
no one has fixed the clock bug on Jap spec cars (clue in last thread of the first link below) - its to do with WNRO event in 2019 meaning satellites send different data now than the car expects to see... some ideas of the fun in these
https://mbworld.org/forums/s-class-w...ate-diy-5.html
https://mbworld.org/forums/s-class-w...me-issues.html
https://mbworld.org/forums/s-class-w...uchscreen.html
https://mbworld.org/forums/mercedes-...rks-fixed.html



do you have any more detail how to do the clock change with Vediamo please?
loys of us have the software and hardware, but no one has been able to fix it.
I also have a Japanese spec car.
thank you.
Step 1: remove Comand and disconnect gps antenna (blue plug) - In Japanese command it is useless so you don't lose any functionality:

Step 2: Adjust time using this function in Vediamo:

and it's done


Trending Topics



very clear and easy instructions.
I imagine once the GPS plug is taken off, I can just push Command back in and connect Vediamo and adjust. ??
good work.
The Best of Mercedes & AMG




or you fix the broken car and update, so the vehicle understands the new WNRO epoch we are in using a cd in 10 minutes - and this way, not only is the year, data and time correct. the service schedule isn't muddled either



The basement fix works. Disconnect the blue GPS plug from the rear of the Command unit, then disconnect batt at 1159 and reconnect close to 1200.
The clock “resets” itself once the power comes on again, and your dashboard clock is now good to go….
Thanks Gents,
VetteBK - we can’t use the Command menu to set the time, because the option doesn’t appear in a Jap spec car that is being used outside of Japan.
The other issue is that no one has yet found a way to get into Engineer Mode, in these cars, so we can’t try to use Polar Bear’s fix.
( On other threads in this forum, it has been suggested that the PB fix, may also not work on a JapSpec unit due to their different setup)
I am away on holiday at the moment, but when i get back home, I will try the basement fix to see if my clock changes time, once I am out in the open.
I will then try the 12 noon battery fix to work out if 12 noon in Abu Dhabi does the trick, or whether I have to disconnect and re-connect at 0700 Abu Dhabi
time, which is noon in Japan ???
I will post when I have some answers.
Thank you all.
Last edited by jmirgy; Jun 29, 2023 at 08:35 AM.
looking at obscure update CDs for comand units we guess suitable for other markets... they too have the same out of date vespucci file amongst their other update folders... so it may be possible to take the patched vespucci file and create a cut back Jap comand update disc to get the same fix
so the battery disconnection idea (which in early cars is dead simple), open the boot, lift spare wheel cover, on the right side of the boot well, where you find a thin black flat earth strap with a red 13mm headed bolt - undo it at 11:59 and 30 seconds and reconnect at 11:59 and 47 seconds, the clock spins to midday taking the 12 seconds u gave it and starts life from midday (midnight if u r a strange one)....
Last edited by DamirB; Jan 18, 2023 at 04:06 PM.








