How to Replace the Key Battery for Mercedes-Benz GL450?
3 Answers
The method to replace the key battery for Mercedes-Benz GL450 is as follows: 1. Gently press the switch on the back of the key; 2. Remove the mechanical key; 3. Press the button to open the back cover; 4. Open the battery compartment on the left side of the key; 5. Remove the old battery and insert the new one; 6. Reassemble the key. The Mercedes-Benz GL450 is a large 5-door, 7-seat SUV with body dimensions of 5099mm in length, 1920mm in width, and 1840mm in height, with a wheelbase of 3075mm and a fuel tank capacity of 100 liters. The Mercedes-Benz GL450 is equipped with a V8 naturally aspirated engine, delivering a maximum horsepower of 340 hp and a maximum power output of 250 kW.
As someone who frequently changes car keys, I've replaced the battery in my Mercedes GL450 key several times. The key usually has a sliding groove or a button—first locate the right spot, then gently pry open the casing with a small screwdriver or plastic pry tool. Avoid using metal tools to prevent scratching the key. Inside, you'll typically find a CR2032 battery. When removing the old battery, pay attention to the positive and negative orientation, and insert the new battery the same way. Reassemble the casing and test the lock/unlock functions. If the key still doesn't respond, the battery might be inserted backward or there could be poor contact, requiring a recheck. The whole process takes less than 5 minutes and is quite simple—doing it yourself saves a trip to the dealership. Tools can be bought at a hardware store, and the battery is available at supermarkets, so keep one handy just in case. Regularly check the battery life and replace it before it dies completely for a more worry-free driving experience.
I was a bit worried about damaging my Mercedes GL450 key when changing the battery for the first time, but it turned out to be pretty straightforward. There's a small notch on the back of the key - I pressed it and gently slid the cover open. The battery inside is a CR2032 model. Before removing it, remember the positive/negative orientation so the new battery can be installed correctly. When snapping the cover back on, don't apply too much force to avoid breaking the clips. Test the locking function immediately after completion to ensure proper operation. If unsure, consult the owner's manual or follow YouTube video tutorials step by step - they make the process foolproof. DIY saves dozens of dollars and is quite convenient. The key is to stay calm and proceed slowly to avoid mistakes. A green LED light indicates successful replacement. Always check the expiration date before using new batteries and avoid inferior brands.
