How to Replace the Battery in an Older Mercedes-Benz C63 Two-Door Coupe Key?
2 Answers
Here is the method to replace the battery in an older Mercedes-Benz C63 two-door coupe key: 1. There is a sliding switch on the head cover of the Mercedes-Benz car key. 2. Use your hand to push this sliding switch to open and remove the mechanical key. 3. Insert a small metal object and gently pry to remove the Mercedes-Benz logo piece. After removing this piece, you can see the key's battery. Replace it with a new battery, and the key will function normally. Below is related information about the lifespan of the Mercedes-Benz key battery: 1. The lifespan of a Mercedes-Benz key battery is generally two years, while the original factory battery can last up to six years. 2. When the key battery is low on power, the Mercedes-Benz vehicle will provide two types of alerts. The first is when you press the ignition switch, the Mercedes-Benz dashboard will display a message to replace the key battery. The second is when you press the lock or unlock button on the key, if the indicator light on the key becomes dim or does not light up, it's time to replace the key battery.
I've been driving an older Mercedes-Benz C63 coupe for several years, and changing the key battery is quite straightforward. The key usually has a small plastic casing that can be gently pried open from the edge using a fingernail or a small tool. Be careful not to force it open, as you might break the clips. Inside, there's a small coin cell battery, typically a CR2032, which can be easily found at supermarkets or auto parts stores for just a few dollars. Before replacing it, test the remote; if it's slow to respond or has a short unlocking range, it's likely a battery issue. After opening, remove the old battery, clean the slot, and place the new battery with the positive side facing up. Make sure it clicks into place when reassembling. The whole process takes about five minutes, but if it's your first time, I recommend watching some online videos for reference to avoid mistakes. Regularly changing the battery every two years can prevent unexpected issues, saving you from any inconvenience during critical moments.