ECU advice please
#1
Junior Member
Thread Starter
ECU advice please
Can anyone please advice me that if i disconect the ECU and then insert it back, do i need to connect it to the star diagnostic scan after or it will work without even?
Thanks
Thanks
#2
they have up to 56 ECUs in these vehicles... which one do you want to disconnect?
so long as the systems are asleep (key out for 8 mins shouldn't be much of an issue)
so long as the systems are asleep (key out for 8 mins shouldn't be much of an issue)
#3
Junior Member
Thread Starter
I think someone may have moved it or disconnect it a week ago, now i'm getting lots of warning lights going on/off on the instrument clauster and the RPM's & KM/h gauge is jamping crazy, also it does not want to go into gear imediatly.
Dont know if its just the disconnect/move unit issue or it is just a coincidence happaning a week after?
Last edited by superveloche; 01-16-2020 at 12:19 PM.
#5
sounds more like the fun between EZS, ISM and gearbox
you need good diagnostics and prob and expert (all quite normal on a merc)
you need good diagnostics and prob and expert (all quite normal on a merc)
#7
battery voltage?
you can (and should) top up the AGM batteries with distilled water... will work properly and last another 10 years
these 221's use 37 amps with the key on and drop to critically low volts inside 20 minutes without the engine running
random really serious electronics issues are standard with a modern Mercedes - you need dealer spec diagnostics to reliably make it home from the corner shop !!!
you can (and should) top up the AGM batteries with distilled water... will work properly and last another 10 years
these 221's use 37 amps with the key on and drop to critically low volts inside 20 minutes without the engine running
random really serious electronics issues are standard with a modern Mercedes - you need dealer spec diagnostics to reliably make it home from the corner shop !!!
Last edited by BOTUS; 01-18-2020 at 05:27 AM.