Will the BMW 525 automatically lock if I forget to lock it?
3 Answers
If the Mercedes-Benz car door is opened and then closed without being locked, it will not automatically lock. In case of a malfunction, it will automatically lock. There is also an anti-misopening function: after the vehicle is locked, if it is unlocked again but no door is opened, the system will assume that the unlock button was accidentally pressed and will automatically lock again after a few minutes. Additional information: 1. Self-completion: It often happens that drivers forget to lock their cars after parking, which can lead to the risk of theft of property inside the car, causing significant trouble and loss in work and life. When the key is removed, the power is cut off, and the door is closed, the driver must actively lock the car using the remote key. The reason is that most models on the market do not have a key electronic signal distance detection function, so automatic locking cannot be completed by the car itself. 2. Not locking the car after getting off will not result in automatic locking: However, there is a reminder function that requires the remote. If the car is unlocked with the remote after locking and no door is opened, the doors will automatically lock again. The automatic locking scenario occurs when the car is unlocked with the remote key, and no one touches any door, including the trunk, within one minute. The doors will relock within one minute. But if you get out of the car, close the door, and forget to lock it, the vehicle will not automatically lock. What if the key is left inside the car? Therefore, you must press the remote to lock the car. The two common ways to lock a car are: most cars use a remote key to lock, while some require inserting the key into the door lock cylinder and turning it to lock.
When I first drove the BMW 525, I used to worry about this a lot. After testing it several times, I found that as long as you turn off the engine, close the door, and walk away with the key, the car will automatically lock itself after about 3-5 meters, and you can hear a clicking sound. However, never rely entirely on this feature! Once, I left the key in my jacket pocket while I was organizing things in the trunk for half an hour, and the car never locked. Later, I asked the 4S dealership and learned that the auto-lock feature requires all doors to be properly closed and the key to be out of the sensing range. If you park in an area with strong signal interference or if the key battery is low, this function might fail. Now, I’ve developed the habit of checking the auto-folding mirrors for confirmation, which gives me more peace of mind.
My 525 does have the walk-away auto-lock feature, but the triggering conditions are quite specific. The key must leave the vehicle's sensor range, and all doors including the trunk need to be completely closed. I remember one time at the supermarket, I put the key in a shopping bag and threw it in the trunk—ended up finding the car completely unlocked after shopping. An engineer friend explained that there are seven or eight sensors around the vehicle detecting the key's position. If the key stays within one meter of the car for more than two minutes, the system assumes someone is using the vehicle and won't auto-lock. So the safest bet is still manually pressing the lock button on the key fob—waiting for those two red light flashes is the real peace of mind.
