How to Replace the Key Battery for the New Mercedes-Benz SLK300?
3 Answers
Slide open the tab at the rear end of the key to remove the mechanical key. Insert the mechanical key into the slot at the tab position and apply slight pressure to pop open the rear cover. Remove the depleted old battery, replace it with a new one, and then close the rear cover. Additional relevant information is as follows: 1. Body Dimensions: The Mercedes-Benz SLK300 measures 4084 mm in length, 1785 mm in width, and 1286 mm in height, with a wheelbase of 2430 mm. 2. Powertrain: The Mercedes-Benz SLK300 is equipped with a naturally aspirated engine, delivering a maximum horsepower of 231 hp. The engine reaches its maximum power at 6000 rpm and achieves peak torque between 2500 to 5000 rpm.
Last time I changed the battery for my SLK300 key myself, and it went quite smoothly. First, locate the opening slot or small button on the back of the key, then gently pry open the casing using a small knife or nail clipper—be careful not to use too much force to avoid scratching the plastic. Inside, you'll find a CR2032 battery. Pay attention to the polarity; usually, the positive side faces upward. Simply remove the old one and insert the new battery. I recommend buying branded batteries to avoid premature failure. After reassembling, press the casing firmly and test the unlocking function to ensure it works. The whole process takes about 5 minutes, saving you a trip to the dealership and helping you get familiar with small vehicle components. Remember to use clean tools, as static electricity can affect electronic parts. Regularly checking the battery life can prevent the embarrassment of an unexpected power loss.
As an SLK300 owner, I was quite nervous when changing the key battery for the first time, but quickly learned from online tutorials. The steps are: press the side button of the key to release the mechanical key part, then use a screwdriver or plastic pry tool to separate the main housing, exposing the circular battery compartment. Remove the old CR2032 battery and replace it with a new one, ensuring the positive mark faces outward - it may not work if reversed. When reassembling, gently snap it back together until you hear a click indicating proper alignment. I recommend doing this in a well-lit area to avoid losing small parts. This task is simple and cost-effective, with replacement batteries costing just a few dollars. Key point: The SLK key has a screwless design making it easy to open, but if repeated attempts fail, it's safer to seek professional repair.
