How to replace the battery in an old Mercedes-Benz B180CDI key?
2 Answers
Method for replacing the battery in an old Mercedes-Benz B180CDI key: 1. Push the sliding switch on the back of the remote to remove the mechanical key; 2. Insert the mechanical key into the prying hole on the remote and push firmly to the bottom, the back cover will pop open automatically, then remove the back cover of the remote; 3. Take out the old battery from the remote key and quickly replace it with a new one, ensuring the new battery is installed within 30 seconds. The dimensions of the Mercedes-Benz B180CDI are 4359mm in length, 1786mm in width, and 1558mm in height, with a wheelbase of 2699mm. The car's multimedia features include GPS navigation system, LCD screen on the center console, built-in hard drive, car TV, and rear LCD screen.
Replacing the battery in an old Mercedes B180 CDI key is actually quite simple—I’ve done it several times myself. First, hold the key vertically and look at the back. Use a coin to gently twist the small indentation, and the back cover will pop open. Inside, you’ll find a coin-cell battery, usually a CR2032 model, which is readily available at supermarkets. Before removing the old battery, take a photo with your phone to note the correct orientation of the positive and negative sides—installing it backward would undo all your effort. When inserting the new battery, a click means it’s securely in place. Then, align and press the back cover back on. After replacement, test the lock/unlock buttons to ensure they work—sometimes you might need to press them a few extra times if the contact isn’t perfect. The whole process takes about five minutes, saving you a trip to the dealership and unnecessary expenses. It’s best to wear gloves to avoid transferring oils from your hands onto the circuit board.
