Effortless Battery Replacement for a Seamless Mercedes Driving Experience

Try starting the car with that fob, whilst the engine is running, remove the 2032 battery, wait 20 secs, then put the battery back in. Replacing Batteries in the Older SmartKey®: Pull the latch at the end of the key holder, push your key horizontally into the open slot, and then lift the ... Get the Right Replacement Batteries – The Chrome SmartKey® takes one CR 2025 replacement battery. Older SmartKey® varieties take two CR 2025 batteries. How to Change the Mercedes-Benz Key Fob Battery (Chrome Keys) · Slide the black tab to the right. · Remove the metal key. · Insert the metal key into the other end ... SmartKey® for Older Models: To replace the battery in your key fob, pull the latch at the end of the key holder, push your key horizontally into the open slot, ... If the car battery is dead or very low, the key fob will not turn. The first thing to do is to make certain that the battery is fully charged. How to Open Your Mercedes-Benz Key Fob · Pull the sliding tab on the key, and pull out the key that is inside of the fob. · Then, move the key to ... ... replace the battery. Learn how the ... You can initiate an ECU reset by turning the key or pressing the button in a certain sequence. Follow the steps below to change the battery in your Mercedes-Benz key fob and avoid more problems down the road. How to Open Your Mercedes-Benz Car Key Fob to Replace the Battery · Look for a silver square-shaped tab on the bottom of the key. Pull it until ...