
A4's automatic locking does not require setup; it activates when the vehicle speed reaches 15 km/h. After automatic locking, doors can still be opened from the inside, but not from the outside. The purpose of the automatic locking feature is anti-theft, allowing the doors to lock quickly after driving to prevent door-pull robberies during traffic jams or at red lights, providing a certain level of security. Overview of automatic locking: The purpose of the automatic locking feature is anti-theft. It activates when the vehicle reaches a certain speed (around 15 km/h), preventing door-pull robberies during traffic jams or at red lights, offering a certain level of security. Disadvantages of automatic locking: The central locking system is a combination of mechanical and electronic devices. In the event of an accident, if the electronic components fail, passengers can still open the doors to escape (provided the locks are not damaged). However, if all occupants inside the vehicle are unconscious, rescuers outside may waste more time trying to open the doors.

A4 owners should know that the auto-locking feature needs to be manually enabled, as it's turned off by default. I accessed the vehicle settings menu in the central control system, found the 'Auto-lock' option under the door lock settings, and simply checked the box. Once set, the doors automatically lock with a click when the speed exceeds 15 km/h, providing peace of mind at traffic lights without worrying about someone trying to open the door from outside. I once forgot to set it up and drove for half a year, constantly having to press the lock button manually at red lights—it was both troublesome and distracting. I recommend new owners enable this feature on the day they pick up their car, and also turn on the auto-unlock function so the doors unlock automatically when the engine is turned off, saving passengers from frustration.

From my own experience with the A4, the auto-locking feature must be activated through the system settings. Simply tap the vehicle icon on the central control screen, select 'Central Locking,' and then turn on the 'Automatic Locking While Driving' option. Without this setting, it can feel unsafe in traffic—once at a red light, my passenger door was suddenly opened by someone trying to sell cleaning products, which gave me a real scare. After setting it up, the doors automatically lock at 20 km/h, and they unlock automatically in case of a collision for easy escape. This feature is especially important for families with children—my kid is quite active, and without auto-locking, I’d always worry about them playing with the door handles. To confirm the setting works, just drive a few hundred meters and listen for the locking sound.

When I first drove the A4, I thought the auto-locking feature was enabled by default, but later found out it needed manual setup. I located the vehicle settings page in the MMI system, checked the 'Auto-lock' option under the central locking section, and that was it. After setting it up, the doors lock automatically when the speed exceeds 15km/h, which is most noticeable during city driving when following other cars—no need to remember pressing the lock button. This feature is especially useful in areas with poor security and prevents accidental door openings on highways. Before setting it up, passengers often asked, 'Why don’t you lock the doors?' which was quite awkward. I recommend asking the dealership to set it up for you when picking up the car.

The A4's automatic locking feature requires manual activation and is not enabled by default upon delivery. The setup process is straightforward: access the settings menu via the central control screen, select the vehicle options, choose door lock settings, and toggle on the automatic locking function. After enabling it, the most noticeable benefit is the added peace of mind at traffic lights, eliminating concerns about sudden door openings. On long drives, it also prevents accidental door openings due to drowsiness. Despite being a basic feature, it's often overlooked—some owners remain unaware of its existence even after two years of driving. We recommend pairing it with the automatic mirror folding function for more intuitive parking lot security. Safety-wise, once activated, it automatically engages at high speeds even if you forget to manually lock the doors.

While studying the A4 features, I found that the auto-locking function requires manual setup. In the driver-side menu, I located the vehicle settings and selected the central locking option to enable automatic locking while driving. After setting it up, the doors automatically lock every time the speed exceeds 15 km/h, which is especially convenient at roundabouts. I tested it without the setting, and the doors would slightly vibrate during high-speed turns when unlocked. It's recommended to adjust the unlocking range during setup—the default setting of unlocking only the driver's door is safer. This feature, combined with the child lock, doubles the sense of security when traveling with kids.


