2.0 shuts down after 20-30 minutes on a running car even with ignition on!goes on asking to turn ignition on!
I checked and found all the fuses are intact and pins 4,5 &7 show +12 volt.
Please help as it is irritating to turn it on when the navigation stops at critical points.
Regards

Replace unit with new one.

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www.benzmodz.com .... putting the Me into Mercedes.

Changed unit still same problem!maybe richard has a clue!

Do you get the display on the cluster showing the audio and navigation info, or does it just show '----'

If it shows ---- you have a CANBus fault. Otherwise I would have said it was a COMAND unit fault and replace/repair it.

I have presumed it once worked in your car ... Or did you just retrofit it and it doesnt work..

Richard

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Of course i'll take it apart.

www.mercupgrades.com
http://www.comandonline.co.uk

I put another unit and same thing happens!NAVIGATION AND EVERYTHING WORKS PERFECTLY.
I bench tested both units and gave power 12 volt + to pins 4,5,7 and -ve to pin 8 in the A Connector but even then they shut off after 30 minutes and before shutting off they warn me to turn on the ignition!
I think there ought to be some pin that needs +12 volt that I am missing in the A Connector!

Check your C1 and C2 connections are installed.

__________________
www.benzmodz.com .... putting the Me into Mercedes.