Why Doesn't the Mercedes-Benz Make a Sound When Locking?
3 Answers
Mercedes-Benz locking does not sound for the following reasons: 1. There will be no alert sound if any door is not properly closed; 2. Check in the central console settings whether the locking alert sound is turned off. Method to adjust the Mercedes-Benz locking sound: Press the right button on the steering wheel to enter the vehicle settings interface, then use the up and down buttons to navigate to the central locking sound option. Under the feedback option, press the OK button to enable or disable the sound. Taking the Mercedes-Benz E-Class 2021 E260L as an example: The manufacturer of this car is Beijing Mercedes-Benz, classified as a mid-to-large-sized car, with a 9-speed automatic transmission, a 4-door 5-seater sedan body type, and a turbocharged intake form.
Last time, my Mercedes suddenly had no sound when locking, and I thought something serious was wrong. After struggling for a while, it turned out the remote was set to silent mode. Mercedes cars have a customization feature where you can adjust settings on the central screen or dashboard, and accidentally tapping the wrong option can mute the sound. That's not all—other common reasons include doors not being fully locked or windows not completely closed, causing the system to deem it unsafe and not sound the alert; or a blown fuse in the horn, requiring a check of the fuse box; or even an electronic module malfunction, leading to failed signal transmission. My advice is not to panic—first, try turning the car off and restarting it. If that doesn’t work, check the manual to adjust the settings. If the issue persists, it's best to have it inspected by a professional shop promptly to avoid potential security risks if the anti-theft alarm fails someday.
During car repairs, I've seen many Mercedes-Benz owners complain about the lack of a beep when locking the car. This is usually caused by minor issues, with improper settings being the most common. The Mercedes remote system allows you to toggle the lock/unlock beep, which might have been accidentally disabled. It could also be a battery issue—either the remote key's battery is too low or the car battery isn't performing well, affecting signal transmission. Alternatively, there might be a circuit problem, such as loose wiring for the horn or a faulty sensor. I recommend first trying a system reset by disconnecting the car battery for a few minutes and then reconnecting it. If there's no improvement, head to the dealership for a check-up immediately, as ignoring it could compromise driving safety. Regularly checking settings during routine maintenance can help prevent such annoyances.
