ktpsmf

Hello dear forum,
just wanted to share my trip finding really hard solution in my W221 S320 2007.

My Analog clock started to run itself, i noticed that it is a bit wrong, so i went to COMAND settings and tried to set it, i noticed that my Year is 2003 , after setting time on COMAND it did not changed on my analog clock.

Than i noticed this symphtoms :

1. Clock does not synchronize
2. Cannot change S (Sport) to C (comfort) - simply button was not reacting.
3. All COMAND functions was working - Audio, NAV, DVD (even safety rutned on when in motion).
4. All Car settings (seats, lightning) was not working on COMMAND.
5. I could not reach phone, audio, nav from my speedometer (dashboard).

I had Autocom VCI+ 100251 and it showed me MB errors : C02f and C037 - no CAN communication with unit COMAND.

so i searched in this forum, there is many similar problems but no solution, so i started to look around for CAN.
i found this diagram :



on Documentation A1 is a Instrument cluster and A40 is a Command



so i started to search for a CAN that is X30/20 .
On additional wire diagram i found :



and WOOT : i found it, took it out, cleaned all connectors, put it back and i have working all again .




adding additional documents

Rycka Weikejas

[QUOTE=ktpsmf;7666464]Hello dear forum,
just wanted to share my trip finding really hard solution in my W221 S320 2007.

My Analog clock started to run itself, i noticed that it is a bit wrong, so i went to COMAND settings and tried to set it, i noticed that my Year is 2003 , after setting time on COMAND it did not changed on my analog clock.

Than i noticed this symphtoms :

1. Clock does not synchronize
2. Cannot change S (Sport) to C (comfort) - simply button was not reacting.
3. All COMAND functions was working - Audio, NAV, DVD (even safety rutned on when in motion).
4. All Car settings (seats, lightning) was not working on COMMAND.
5. I could not reach phone, audio, nav from my speedometer (dashboard).

I had Autocom VCI+ 100251 and it showed me MB errors : C02f and C037 - no CAN communication with unit COMAND.

so i searched in this forum, there is many similar problems but no solution, so i started to look around for CAN.
i found this diagram :



on Documentation A1 is a Instrument cluster and A40 is a Command



so i started to search for a CAN that is X30/20 .
On additional wire diagram i found :



and WOOT : i found it, took it out, cleaned all connectors, put it back and i have working all again .





It happened forme aswell i changed the date and suddenly everything stopped working...I tried to do what you done but no luck...Not sure what else i could do..

Rycka Weikejas

[QUOTE=Rycka Weikejas;8310457]