What is the reason why the right rear door of a Mercedes-Benz cannot be opened from the inside?
2 Answers
Mercedes-Benz right rear door cannot be opened from the inside because the child safety lock is engaged. There is a small switch on the door frame, just flip it to unlock. Below is an extended introduction to the car child lock: 1. The car child lock, also known as the door child safety lock, is set on the rear door lock of the car. After opening the rear door, there is a small lever (safety mechanism) below the door lock. Flip it towards the end with the child icon, then close the door. At this time, the door cannot be opened from the inside, but can only be opened from the outside. 2. Its function is to prevent active and unaware children from opening the door during driving when they are seated in the rear, thereby avoiding danger. In this case, the door can only be opened by an adult from the outside after parking. If the rear door of the car cannot be opened from the inside but can be opened from the outside, it is highly likely that the child lock is in effect. This is caused by the rear passengers triggering the safety mechanism when getting on or off the car, and it only needs to be reset.
I've encountered this issue a few times as well. Actually, the most common reason why Mercedes rear doors can't be opened from inside is that the child lock was accidentally activated. The child lock switch is located in that small hole on the door edge, and you need a key or screwdriver to toggle it. Many people accidentally touch it after car washing or repairs. Of course, it could also be that the door handle is broken, with the internal cable loose or snapped, making the handle unresponsive when pulled. If both these possibilities are ruled out, then the lock mechanism itself might be jammed, requiring door panel removal for inspection. But honestly, don't try to fix it yourself blindly. Modern Mercedes door locks are electronically controlled, and improper disassembly can easily damage the circuit board. It's safer to visit an authorized dealership as soon as possible, especially since this concerns driving safety.
