How to Replace the Key Battery for the New Mercedes-Benz CLS350-CGI?

[DiBeckett]

Here is the method to replace the key battery for the new Mercedes-Benz CLS350-CGI: 1. Prepare a screwdriver or pry tool; 2. Pull out the metal key; 3. Carefully pry open the key and replace the battery (positive side facing outward); 4. Reassemble the key after replacing the battery. Below is an introduction to the Mercedes-Benz CLS350-CGI: 1. The 2012 model of the Mercedes-Benz CLS350 features a more attractive design compared to its predecessor. The front fascia showcases the family-style grille with a prominent three-pointed star logo, while the diamond-shaped headlight assembly with 71 LED light sources draws significant attention. Additionally, the side profile highlights dual character lines that seamlessly blend with the U-shaped rear design, complemented by wraparound taillights for a sporty appeal. 2. The interior of the new-generation CLS also underwent significant changes. The 'T'-shaped center console follows a traditional design, while the new three-spoke steering wheel and white-background instrument cluster with a cannon-style layout enhance the driver's enthusiasm. Notably, the CLS reintroduces the classic Mercedes-Benz column-mounted gear selector (the AMG version features a gear lever). 3. Furthermore, the CLS offers up to 11 exterior color options and multiple interior styles, along with added safety features such as Active Parking Assist and other high-tech configurations. The powertrain also sees notable improvements. The CLS350's engine now delivers a maximum power output of 306 horsepower (up from 272 horsepower) and a peak torque of 370 Nm (up from 350 Nm).

[LeAllie]

Last year, I replaced the key battery for my family's Mercedes-Benz CLS350, and the process was quite simple. First, use a small flat-head screwdriver or a coin to gently pry open the clips on both sides of the key, being careful not to use too much force to avoid scratching the plastic casing. The key usually splits into two halves, and once opened, you can see the battery compartment. The old battery is typically a CR2032 model, 3V. Remove it, making sure to note the positive mark to avoid installing it backward. Before inserting the new battery, wipe the compartment with a dry cloth to prevent poor contact, then press it firmly in place. Test the buttons to see if they respond, then snap the key back together. I recommend buying Panasonic or Nanfu batteries from the supermarket—they cost just a few bucks, much cheaper than at the dealership. If the key's red light starts flashing, it might mean the battery is weak, so replace it early to avoid getting locked out of the car. Doing it yourself feels both convenient and cost-effective. After replacing it, my key worked flawlessly for a whole year.