: If the button feels mechanically sound, a technician can clear the code using a Mercedes-specific tool (like XENTRY) to see if the signal error was a one-time glitch.
: Pressing the Favorites button does not bring up your preset menu on the MBUX or COMAND screen.
: The favorites menu might appear and disappear randomly if the button is "ghosting" or partially stuck. Why Does This Happen? mercedesbenz b1e9e2a
While Mercedes-Benz uses high-quality materials, cockpit buttons are susceptible to daily wear and tear. Common causes for B1E9E2A include:
: The button may physically feel sluggish or fail to click back into place after being pressed. : If the button feels mechanically sound, a
Unlike critical engine codes, this issue usually does not affect the drivability of the car, but it can be a nuisance for users of the MBUX infotainment system .
If you need to replace the control unit associated with this button, you can search for genuine parts using your VIN on the Mercedes-Benz Classic Parts Search or through authorized Mercedes-Benz Parts Catalogs to ensure compatibility with your specific model year. Why Does This Happen
: Coffee, soda, or cleaning agents can seep behind the button housing, creating a sticky residue that prevents the mechanical return of the switch.
The diagnostic trouble code (DTC) specifically refers to a mechanical or electrical failure of the "Favorites" button (often identified as the button with a star icon) on the center console or steering wheel control bank.
: Using a specialized electronic contact cleaner or a small amount of isopropyl alcohol on a soft brush can sometimes dissolve residue causing the stickiness.