How to Replace the Key Battery for the New Mercedes-Benz CLS550?

[LailaMarie]

The method to replace the key battery for the new Mercedes-Benz CLS550 is as follows: 1. First, press the small button on the back of the key to pull out the mechanical key; 2. Use the tip of the mechanical key to press against the middle of the key, apply a little force, and the key cover will pop open; 3. Use your fingernail to remove the button battery and replace it with a new one, ensuring the correct battery model is used with the positive side facing outward. The new Mercedes-Benz CLS550 features the brand's signature freestanding multimedia display, and the newly designed three-spoke steering wheel appears more youthful and dynamic compared to the current model's four-spoke design. Additionally, the interior incorporates more wood trim and leather upholstery, with added features such as ambient interior lighting, a human-machine interaction system, and a remote connectivity online service system.

[DeMatteo]

I recently replaced the battery in my new Mercedes-Benz CLS550 key fob, and the process is actually quite straightforward, suitable for a DIY approach. First, you'll need a CR2032 coin cell battery, which is the standard model. Locate the small notch on the key fob, usually on the side or top, and gently pry open the casing using your fingernail or a small plastic pry tool—be careful not to apply too much force to avoid scratching the plastic. Once you see the old battery, remove it with your fingers or tweezers, noting the orientation for reference. Insert the new battery, ensuring the positive side faces up (the side with the plus sign marking), and press it down gently. Then, snap the casing back into place until you hear a 'click' indicating it's securely locked. Finally, test the remote buttons by pressing the unlock or lock button to confirm normal response. The entire process takes no more than five minutes. It's recommended to replace the battery every two years, or when you notice reduced remote range or delayed button response. Keeping spare batteries at home makes timely replacements convenient.

[OZoe]

When replacing the key battery, extra care is essential—I always emphasize safety first, as minor mistakes can damage the internal components. Start by gently inserting a tool like a small flathead screwdriver or a dedicated pry tool into the seam of the key casing, then slowly pry it open without forcing it. After removing the old CR2032 battery, avoid touching the metal contacts to prevent electrostatic damage to the circuit. Before inserting the new battery, check if the contacts are clean—wipe them with a tissue if needed. Once installed, press the cover firmly to ensure a tight seal and prevent moisture ingress. It’s best to perform this in a dry indoor environment. After replacement, immediately test all button functions to avoid malfunctions while driving. If the key occasionally fails, it may indicate low battery—timely replacement prevents being stranded. Additionally, carrying a spare key adds security, as driving safety relies on it.

[AaliyahMarie]

Changing the battery in my Mercedes key for the first time was surprisingly easy. First, locate the small slot on the key and use your finger to pry open the cover. Inside, there's a small round battery that can be directly removed. Replace it with a new CR2032 battery, making sure not to reverse the positive and negative sides. Close the cover firmly and test the button response to see if it's quick. Keep an eye out for reduced remote distance or lights not working as usual signs that it's time for a replacement. It's handy to keep spare batteries in your car or at home for immediate use, avoiding any sudden power loss stress. The whole process requires no tools and takes just a minute, so even beginners shouldn't worry about making mistakes.