Why Does the Car Door Lock Make Noise?
2 Answers
The noise from a car door lock can be analyzed from the following aspects: 1. Noise caused by the door seal: Over time, the door seal itself gradually ages, creating friction between the door seal and the car body, which may produce noise while driving. 2. Noise from the door itself: This issue occurs when the door lock striker is installed too outward, causing the door to not fit tightly with the car body. 3. Noise from the door hinge: After prolonged use, the hinge's friction increases significantly, leading to noise. 4. Noise from the door limiter: If the door limiter is not regularly maintained, it can also cause the door to produce noise. 5. Noise from friction in the door glass seal: Over time, the glass seal may become misaligned, which can also generate noise while driving.
My previous car's door locks used to make annoying squeaking noises, especially when opening and closing. The main reason was severe internal component wear. Long-term use caused gears, springs, and other parts to age and loosen, increasing friction which naturally created noise. Insufficient lubrication was also common - dust getting stuck inside or issues with the power lock motor could make the sound worse. I tried spraying some WD-40 for lubrication myself, which helped but wasn't a complete solution. Eventually, I had a professional auto repair shop do a full inspection. Safety first - don't wait until the door unexpectedly won't open to address the issue. I recommend paying attention to any changes in the sounds and doing regular maintenance to save big money in the long run.
