How to Replace the Battery in a Mercedes-Benz S430-4MATIC Key?

1 Answers
DelAngelo
07/30/25 5:37am
The method to replace the battery in a Mercedes-Benz S430-4MATIC key: 1. Flip open the switch at the back end of the key and remove the mechanical key; 2. Insert the mechanical key into the slot at the switch position and apply slight force to pop open the back cover; 3. Remove the depleted old battery, replace it with a new one, and close the back cover to complete the battery replacement. During the replacement process, pay attention to the battery model. Most Mercedes-Benz key batteries use the 3V CR2025 model. The Mercedes-Benz S430-4MATIC measures 5159mm in length, 1857mm in width, and 1445mm in height, with a wheelbase of 3086mm. It features a 4-door, 5-seat sedan body structure and is powered by a 4.3L naturally aspirated V8 engine, delivering a maximum power of 205kW and a maximum torque of 295Nm.
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