What Are the Reasons Why a Mechanical Key Can Be Turned But Cannot Open the Car Door?

[VonEmerson]

Mechanical key can be turned but cannot open the car door may be due to the mechanical key not matching, the car door being frozen, or the lock cylinder malfunctioning. Mechanical key not matching: Only a mechanical key that matches the lock cylinder can open the car door. When a new key cannot match the lock cylinder, it may cause the car door to fail to open. Car door being frozen: In winter, when the temperature is too low, the car door is extremely prone to freezing. In this case, even if the lock cylinder is unlocked, the car door still cannot be opened. Lock cylinder malfunctioning: If the internal parts of the lock cylinder are broken, even if the mechanical key can be turned, the car door still cannot be opened.