IMPORTANT: If both selections are turned on already, make sure to turn them off completely… and then turn them on again. There you’ll see 2 selections: “BT Audio” and “Bluetooth” as you can see in the photo below. Once you enter the engineering mode on the screen, scroll down to “HU Parameter” and enter. The buttons are highlighted on the photo below: The 3 buttons to press together are: RED PHONE PICKUP button + “1” button + “#” button. In order to enter the system Engineering Mode, you have to press and hold 3 buttons for about 5-6 seconds until you see the Engineering Mode menu pops up on the screen. One of the menus in the AUDIO has to be “Bluetooth Audio”, but if you don’t see this menu on the screen (like on the photo below), then you need to enter the system Engineering Mode. Then go to AUDIO on the screen and select it.
#Mercedes w203 radio no sound Bluetooth
On your screen, go to SYSTEM and then to SYSTEM SETTINGS, then make sure that ACTIVATE BLUETOOTH box is selected. A lot of people contacted me with the same problem, so I decided to write an article with the solution to this problem, which will require to enter the Mercedes “Engineering mode”.įirst, you have to make sure that Bluetooth is active in your car. If you have a Mercedes-Benz model equipped with the Bluetooth Phone, but can’t find Bluetooth Audio – read this! “BT Audio” is designed for the streaming of audio from your phone, or any device compatible with a Bluetooth technology.
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