What causes the Mercedes-Benz C260L screen to go black but still have sound?
2 Answers
Mercedes-Benz C260L screen goes black but still has sound for the following reasons: Infotainment system defect failure: Due to incompatibility between certain brands and models of mobile phone Bluetooth, third-party software and the host software, the infotainment screen may go black when connecting or playing songs. In this case, the infotainment system usually returns to normal after a restart. Power circuit failure: If this is the cause, the owner can only go to the 4S store for maintenance, because circuit failure cannot be handled by oneself. Outdated firmware failure: Since the infotainment system has not been updated and upgraded in time, it may also cause the screen to go black. The owner only needs to hand the car over to the 4S store for upgrading and updating the latest firmware to solve the problem.
I've driven a Mercedes C260L for many years and have also encountered the issue of a black screen with sound still playing—it's quite frustrating. Simply put, this could be due to a burnt-out backlight in the screen, a loose video output connection (the system is still running, hence the sound works), or a software glitch causing the system to freeze. Restarting the infotainment system usually helps: hold down the volume knob and the main power button for a few seconds to shut it down completely, then restart. Sometimes, it's a software bug, and updating the vehicle's software can prevent it. If you've installed third-party accessories like a dashcam or GPS, wiring interference might also be the culprit—check those connections promptly. Keep the interior clean to avoid overheating the electronics. If the problem persists, visit a dealership for a thorough inspection to prevent minor issues from turning into major repairs.
