How to do soft reset on Mercedes Benz 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.
What happens when you disconnect the battery on a Lexus ES330?
For future reference be sure that when you disconnect the battery, that the alarm system has been disarmed ie doors are unlocked with remote or key. Ah. sorry for not being specific. They left an ES330 and RX300 in the garage when they went on a trip (1.5 months).
How is the sound system in a Mercedes Benz?
Mercedes-Benz uses fiber optic cables to transmit the sound signal between the different units. Fiber optics provides a faster transfer rates and better sound quality. All the audio related systems in the car are connected via the fiber optic cable in series, forming a ring or a loop.
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.
What causes a Mercedes Benz to have no sound?
Some common problems with the Mercedes-Benz COMAND system include issues such as: 1 Head Unit / Radio stuck on Mercedes-Benz logo 2 Turns on and then off 3 Shuts off randomly 4 COMMAND will freeze 5 Radio powers on but there is no sound 6 Audio Gateway (AGW) drains the car battery 7 Radio panel doesn’t turn on. (Hint: Check fuses.) More
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 happens if the battery disconnect switch is not working?
Otherwise, there is a high risk to your safety besides the RV battery disconnect switch not working. A switch can solve several RV battery-related problems. Do not keep the disconnect switch turned on when your RV is connected to shore power. Keeping your batteries connected to the unit will charge it well for use when you unplug the AC system.
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.