C-Class (W204) 2008 - 2014: C180K, C200K, C230, C280, C300, C350, C200CDI, C220CDI, C320CDI

2009 C350 Command Problem

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Old Oct 11, 2015 | 01:49 PM
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2009 C350 Command Problem

Hello guys,

One day when I started my car the command display was not turning on. I can only press the "on" button to turn it on but it didn't display time. Couple minutes later it says "please start the engine or the comman will shut off in 10 secs".... But I'm driving the car....

Since then, when I start my car, comman doesn't turn on unless I press the button. But the system seems not to connect with the engine. When I turn off my car, the display is not shutting off.... Even though I press the button to shut it off, the radio is still playing.... I tried reset the command system but I didn't help at all...

I'm really confused... Could anyone help?

Last edited by trueblue22; Oct 11, 2015 at 01:51 PM. Reason: Add on
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Old Oct 11, 2015 | 11:25 PM
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Please help me..
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Old Oct 12, 2015 | 10:24 AM
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Need help
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Old Oct 13, 2015 | 02:57 PM
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Does anyone have any idea?
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Old Oct 14, 2015 | 01:43 PM
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Please...6
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Old Oct 14, 2015 | 05:12 PM
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How old is your battery? Do you have any aftermarket electronics in the car?
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Old Oct 14, 2015 | 07:41 PM
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Originally Posted by vipsa
How old is your battery? Do you have any aftermarket electronics in the car?
I bought the car two years ago and I changed the battery. No aftermarket electronics in the car...
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Old Oct 15, 2015 | 03:46 PM
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Have you tried pulling the radio and reconnecting all the plugs? Also, check all the audio related fuses.
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Old Oct 15, 2015 | 04:04 PM
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Originally Posted by vipsa
Have you tried pulling the radio and reconnecting all the plugs? Also, check all the audio related fuses.
Where are the plugs and fuses? I wanna have a try.
Thanx!
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Old Oct 21, 2015 | 10:17 PM
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Originally Posted by vipsa
Have you tried pulling the radio and reconnecting all the plugs? Also, check all the audio related fuses.
Could you help me? Thanx
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Old Oct 22, 2015 | 12:17 PM
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I would start with checking all the fuses. Take a look at this page and check all audio related ones from the chart:

http://www.mercedesmedic.com/c-class...ayout-diagram/

Check this thread on the radio removal. Then I would unplug and plug back in every connector to radio head unit.
https://mbworld.org/forums/c-class-w...c-install.html

Did you mess with anything in the engineering menu? Either way take a look here and see if something seems related. If neither of those fix the issue, fully disconnect the battery over night and connect it back in.
Saying did you replace the battery yourself? Did you use an aftermarket battery by any chance? Are you sure your terminals are secured correctly and not corroded? If you used an after market battery, it might not be the right one for the car. Did you try and read the codes stored in the system?

http://www.benzworld.org/forums/audi...en-w204-2.html
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