What to do if your Mercedes Benz has no sound?
The fist thing you should try is to do a soft reset of the COMAND unit. To do a reset you will need to remove the fuses for at least 10 min for these systems: By removing the fuses for these systems, you will be forcing the command unit to perform a rest. This will generally fix the problem. There is a chance that the symptoms may return again.
Can a Mercedes Benz audio gateway be defective?
The Audio Gateway AGW can also be defective. That is the brains of the Mercedes-Benz COMAND system, therefore you can not bypass it. You will need to replace the whole unit. The only testing that you can really perform with the AGW, is to make sure it is getting power.
How is the audio system in a Mercedes Benz connected?
All the audio related systems in the car are connected via the fiber optic cable in series, forming a ring or a loop. The signal will travel through all the different components and return back to the same component if required. Components that are part of the fiber optic ring are:
What to do when there is no sound in your car?
If you have extended the ground wire, make sure the splice is firmly connected and you may need to use a larger gauge (thicker) ground wire. Turn on your audio system without the car running. Put in a CD and set the CD player on pause, or insert a blank tape if you have a cassette deck. Turn up the volume to a normal listing level.
The fist thing you should try is to do a soft reset of the COMAND unit. To do a reset you will need to remove the fuses for at least 10 min for these systems: By removing the fuses for these systems, you will be forcing the command unit to perform a rest. This will generally fix the problem. There is a chance that the symptoms may return again.
The Audio Gateway AGW can also be defective. That is the brains of the Mercedes-Benz COMAND system, therefore you can not bypass it. You will need to replace the whole unit. The only testing that you can really perform with the AGW, is to make sure it is getting power.
All the audio related systems in the car are connected via the fiber optic cable in series, forming a ring or a loop. The signal will travel through all the different components and return back to the same component if required. Components that are part of the fiber optic ring are: