How to Replace the Shell of an Aging Car Key by Yourself?
3 Answers
Pull apart the original remote controller vertically. The lower part is the remote section, while the upper part contains the key and the anti-theft chip. Open the lower part, remove the remote circuit board and battery inside, install them into the new shell, and then close the lower part to complete the process.
Last time my car key shell was cracked, and it was actually quite simple to replace it myself. First, you need to buy a shell kit online that matches your car model, which only costs a few dozen yuan. When disassembling, use a thin card to gently pry open the key gap, being careful not to apply too much force and damage the circuit board. After removing the old shell, carefully transfer the key chip, battery, and mechanical key into the new shell, making sure the battery is installed with the correct polarity. The most troublesome part is aligning the rubber button pads, which can be adjusted with tweezers. Finally, press the new shell together until you hear the snap of the clips to ensure it's securely fastened. After replacement, remember to test the lock and unlock functions to make sure they work properly. Doing it yourself saved me over a hundred yuan in repair fees, which feels quite rewarding.
I've thought about replacing the key shell, and the key is to be meticulous. First, prepare small screwdrivers and pry tools, and use a bowl to hold the parts to prevent loss. When removing the old shell, pay attention to the position of the clips—older keys have four hidden clips that need to be pried open slowly. After taking out the core components, clean off the dust, and wipe the button positions of the new shell before placing the soft rubber pads. During installation, the battery compartment cover is particularly prone to being misaligned, so be sure to check if the spring contact plate is pressed tightly. For the mechanical key part, ensure the rotating shaft is aligned, and after assembly, press the buttons several times to test responsiveness. The biggest advantage of replacing the shell yourself is being able to choose your favorite color—I went with a carbon fiber pattern, which looks better than the original.
