What is the tutorial for replacing the battery in the Mercedes GL420 diesel version key?

[McElena]

Mercedes GL420 diesel version key battery replacement tutorial is: 1. Remove the mechanical key; 2. Insert the mechanical key into the slot at the paddle position and pry upwards with force to pop open the back cover; 3. Take out the depleted old battery and replace it with a new one. The functions of car keys are: 1. Close windows after turning off the engine, windows will automatically rise and close; 2. Convenient for finding the car in parking lots; 3. Automatically open the trunk; 4. Remote window opening. Types of car keys: mechanical keys, remote keys, touchscreen LCD keys, smart wristband keys. Precautions for using car keys: 1. Do not place them together with electronic devices; 2. Do not expose the key to high temperatures or direct sunlight; 3. Do not use batteries of different power. The method for replacing the key battery is: 1. Take out the car key; 2. Use a flat-head screwdriver to insert into the gap on the side of the key and open the key cover; 3. Take out the battery and replace it.