What is the reason why the Octavia ignition lock cylinder cannot turn?

[MacJustin]

The lock cylinder not turning indicates an issue with the cylinder. First, check the specific reason why the cylinder won't turn. If it's due to stiff lock pins or the key getting stuck with the wafer, you can use a rust remover by spraying it into the keyhole and then working the key. It could also be that the steering wheel is locked, which is a common anti-theft feature in cars. In this case, do not force the key. Here is additional information: Lock cylinder function: The main function of a typical lock cylinder is to transmit torque from the head, which then drives other parts of the lock, enabling it to open and close. Under normal circumstances, when the key is inserted, the knob of the lock cylinder should drop, aligning flush with the surrounding surface, allowing the cylinder to turn. When the key is removed, the knob pops back up, preventing the cylinder from turning.