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Old Sep 11, 2021 | 07:38 AM
  #1  
lug's Avatar
lug
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From: Gibraltar
C320 CDI 4matic Brabus D6(III), Black.(SOLD). Current - EQE 350 W295
No audio except CD

I have a strange problem which I haven't seen mentioned elsewhere (yet). I have a W204 with COMAND (NTG4 I believe). A few months ago I noticed that when I started the car after a few days the audio system worked perfectly. If I stopped the engine and restarted it within a few hours the memory card, radio, internal HDD music register, navigation voice and Bluetooth audio from the phone would go silent - the seconds of play of any song will continue but no sound. The strangest bit (at least to me) is that the CD/DVD disks will play normally.

I have tried resetting the unit by pressing the power button until it restarts and via the engineering menu but this does not help. Only by switching off the car for more than 6 hours will the unit work properly.

Anyone has an idea of what could be the cause of this?
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Old Sep 12, 2021 | 02:56 AM
  #2  
RadioguiyBill's Avatar
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280SL
No audio except CD

If you have the code. Disconnect the battery for about 1/2 hour.

Bill N
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Old Oct 27, 2021 | 09:55 AM
  #3  
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lug
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Joined: Mar 2008
Posts: 61
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From: Gibraltar
C320 CDI 4matic Brabus D6(III), Black.(SOLD). Current - EQE 350 W295
Originally Posted by RadioguiyBill
If you have the code. Disconnect the battery for about 1/2 hour.

Bill N
Thanks for your reply.
I took the car to the garage and they've tried everything and the conclusion is that the head unit is faulty...
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