How to Replace the Battery in a Mercedes-Benz GL400 Key?
3 Answers
The back of the key has a button. Press this button and slide the back cover forward to open the key. The battery is located in the adjacent slot and can be directly replaced. Below is some relevant information about the Mercedes-Benz GL400: 1. The vehicle's dimensions are 5120*1934*1850mm with a wheelbase of 3075mm. 2. It is equipped with a 3.0T V6 twin-turbocharged engine, delivering a maximum power of 245kW and a peak torque of 480N·m. It is paired with a 7-speed automatic transmission, producing a maximum horsepower of 333.
Changing the battery for a Mercedes-Benz GL400 key is actually quite simple. I often do it myself to save a good amount of money. First, locate the small button on the key, press it to pull out the mechanical key, and then you'll see the seam of the key casing. Use a small screwdriver or a coin as a tool to gently pry open the casing—be careful not to apply too much force to avoid scratches. Once opened, you'll find the small battery inside, typically a CR2032 model. Remember the battery's orientation; placing it correctly is crucial, or the buttons won't respond. After removing the old battery, insert the new one, ensuring it's properly seated, then snap the casing back together. Finally, test the unlock and start functions to make sure they work. The whole process takes less than five minutes. You can buy the battery at a supermarket or online, and it's very cheap. I recommend replacing it every two to three years—don't wait until the key stops working, as regular replacement can extend the key's lifespan. If the key is a smart key, you might need to re-sync it after replacing the battery, but for the GL400, it's straightforward—just hold down a button for a few seconds.
Hey, talking about replacing the battery in a Mercedes GL400 key, I tried it myself last time and it was really easy. First, pull out the mechanical key, then use a small card or screwdriver to pry open the casing—just don't force it. Inside, you'll find the small coin battery CR2032. Take out the old one, and when inserting the new battery, make sure the positive side is facing up. Close the casing and test the remote function. The battery I bought was just a few bucks, and you can order it online, saving the extra cost of going to a shop. The key is to be gentle and not damage the contacts. After replacing it, my key signal became stronger. Just remember to keep it dry in the garage, and the battery will last longer. If you're not sure, check the owner's manual or watch a YouTube video—it takes just five minutes, perfect for lazy folks. Don't wait until the remote dies to replace it; keeping spare batteries in the car is a good idea to avoid getting locked out. A few simple steps, and the problem is solved.
