How to Replace the Key Battery for the New Mercedes-Benz C32-AMG?
3 Answers
To replace the key battery for the new Mercedes-Benz C32-AMG, follow these steps: 1. First, locate the sliding switch on the car key and slide it to open the mechanical key. 2. Pull out the mechanical key. 3. After removing the mechanical key, you can see the inside of the car key; insert the metal key and pry open the car key cover. 4. Then, remove the old battery. 5. Insert the new battery and reattach the car key cover. Notes: 1. Do not press the mechanical key downward too hard, as this may break the cover clip. 2. Pay attention to the battery's positive and negative terminals when installing the new battery.
I've got over a decade of experience replacing Mercedes C32 key batteries. There's usually a small seam on the side of the key - just gently pry it open with a thin screwdriver or coin, and the cover will pop right off. Inside, you'll find a CR2025 battery - make sure you don't get the wrong model. When removing the old battery, avoid touching the circuit contacts with metal to prevent static damage to components. Insert the new battery with the positive side facing up, align it properly and press firmly. When closing the cover, you should hear a distinct 'click' to ensure proper sealing. Don't skip testing - immediately try the remote to check if the car lights respond from a distance after replacement. These smart Mercedes keys don't drain quickly; normally they last 2-3 years before needing replacement. Keep the key in your pocket without putting pressure on it to avoid cracks during disassembly. If it still doesn't work after replacement, consider whether the circuit board might be fried - but most people won't have problems if they follow the steps correctly.
This is a piece of cake for car enthusiasts. There's a slot at the back of the key—just pry it open with a bank card or your fingernail. Inside, you'll find a CR2025 lithium battery, which costs just a few bucks on Taobao. Before inserting the new battery, check the electrode direction; for Mercedes, the positive side usually faces up. Close the cover and press it—the red light should flash, and you're good to go. If it doesn't work, the cover might not be closed tightly or the battery could be inserted the wrong way. I once broke the plastic clip by applying too much force while replacing it, costing me over a hundred to fix. It's best not to leave the key in direct sunlight to avoid draining the battery faster. By the way, Mercedes' smart key sensors are quite responsive—after replacement, stand close and test the unlock function to ensure the trunk opens and closes properly. Regular battery changes can prevent locking failures—safety first.
