What is the tutorial for replacing the battery in an old Mercedes CLK300 key?
2 Answers
The tutorial for replacing the battery in an old Mercedes CLK300 key is: 1. Gently press the small switch on the back of the key to remove the mechanical key. Before opening the key cover, press the release button on the back; 2. Open the battery compartment on the left side of the key to see the battery. Use a small flat-head screwdriver to remove the old battery; 3. Insert the new battery with the positive side facing up, then reattach the key cover and mechanical key. The old Mercedes CLK300 is a medium-sized two-door car with dimensions of 4528mm in length, 1840mm in width, and 1691mm in height, a wheelbase of 2755mm, equipped with a 7-speed dual-clutch transmission, and a fuel tank capacity of 66L.
I used to drive this type of car myself, so changing the key battery requires some caution. The older Mercedes CLK300 keys are usually those remote keys with buttons, and the battery is mostly a CR2032 coin cell, which you can easily find in supermarkets. First, don't rush to disassemble it—prepare a small tool like a flathead screwdriver or a coin. Then, look at the key; there's usually a seam in the middle. Gently pry it open, and the casing will separate. Next, remove the old battery, being careful not to mix up the positive and negative terminals. Insert the new battery in the same orientation and press it firmly to ensure good contact. Finally, snap the casing back together tightly, and you're done. The whole process is simple, but avoid using too much force—the plastic casing can crack easily, and if it breaks, it can be quite troublesome. It's best to work in a well-lit area to avoid misplacing the battery. Also, key batteries typically last one to two years. If you often forget to lock the car, replacing it early can prevent malfunctions. I've tried several brands, and they all seemed reliable.
