How to Replace a Mercedes Car Key?

[LeLuna]

Mercedes car keys can be replaced at 4S stores or auto parts markets. More details about car key replacement are as follows: 1. Most car keys are equipped with electronic chip anti-theft technology, using two-way communication between the key and the vehicle. When the key ID verification is successful, the CAN communication sends a signal to the BCM to allow engine start-up. Only keys with registered ID codes in the BCM and ECM can start the engine. 2. 4S stores use specialized diagnostic computers and software to register keys. After initializing the ignition key, the key ID code is registered step by step. Auto parts markets may use password decryption methods to match keys, which has lower security. 3. For vehicles with smart keys, simply re-register the key. For mechanical keys with chips, 4S stores need to replace the steering lock to register the key and recommend replacing all mechanical lock cylinders in the vehicle.