What is the reason for the lack of horn sound when locking a Mercedes-Benz car?
2 Answers
Mercedes-Benz car locking without horn sound is due to: 1. The car door is not properly closed; 2. The lock sound reminder is turned off in the central console settings. Taking the 2021 Mercedes-Benz A180 as an example, it belongs to the compact car category, with body dimensions of: length 4419mm, width 1796mm, height 1432mm, and a wheelbase of 2729mm. The 2021 Mercedes-Benz A180 features a McPherson independent front suspension and a torsion beam non-independent rear suspension. It is equipped with a 1.3L turbocharged engine, delivering a maximum horsepower of 136PS, maximum power of 100kW, maximum torque of 200Nm, and is paired with a 7-speed dual-clutch transmission.
My Mercedes-Benz car's horn doesn't sound when locking, and I suspect the vehicle's personalized settings may have turned off this feature. Mercedes-Benz vehicles have an option in the infotainment system called "Lock Confirmation Sound," which users can toggle on or off in the settings menu on the central display. Sometimes, it might get turned off after a car wash or accidental touch, resulting in no sound when locking. If the setting is not turned off, it could be that the remote control battery is dead, causing weak signals and making the system unresponsive. I also noticed that the car won't make a sound when locking if the doors aren't properly closed, so checking all doors and the trunk is a good habit. Confirming whether the car lights flash when locking can also help verify the status, avoiding worries about whether it's locked. In short, start with the settings, and if that doesn't work, take it to the dealership to check the software.
