How to Replace the Battery in a Mercedes-Benz Car Key?

2 Answers
SanAlana
07/29/25 5:08am
Mercedes-Benz car key battery replacement method is: 1. Turn the remote key upwards and use a flat small screwdriver to slowly pry into the middle of the gap; 2. The key will separate by about a 2mm gap; 3. Gently separate the key along the middle gap, remove the old battery, and replace it with a new one. Taking the Mercedes-Benz GLC as an example: The Mercedes-Benz GLC is the first all-new crossover model launched by Mercedes-Benz, with dimensions of 4764mm in length, 1898mm in width, and 1642mm in height, and a wheelbase of 2973mm. In terms of configuration, the off-road animation of the Mercedes-Benz GLC is particularly attractive: parameters such as gradient, steering angle, direction of travel, roll angle, as well as throttle and brake levels are all displayed dynamically in real-time on the central display, making the center console appear clean and tidy.
Was this review help?
13
5
Share
HavenAnn
08/12/25 8:45am
Changing the battery in a Mercedes key is something I often do myself, and it's quite simple. There's usually a small notch on the back of the key. You can gently pry it open with a small screwdriver or a bank card—just don't use too much force to avoid cracking the case. Once open, take out the old battery, which is typically a CR2032 model. Remember the orientation with the positive side facing up. Before inserting the new battery, check if the contacts are clean. If there's a lot of dust, wipe them with a soft cloth to prevent poor contact. After placing the new battery, align the case and press firmly until you hear a click, indicating it's securely closed. Test the key functions immediately after replacement, such as pressing the unlock button to see if the car lights flash. I usually buy CR2032 batteries on Taobao or at the supermarket for just a few bucks—it saves money and hassle. Be careful not to use hard objects to pry open the key, as Mercedes keys have delicate plastic that can easily be damaged. If you accidentally break it, repairs at a specialized shop can be more troublesome. Normally, the battery lasts one to two years, and learning some DIY maintenance tips is quite practical.
Was this review help?
16
2
Share
Expand All
More Forum Discussions

What are the differences between Toyota Izoa and Toyota C-HR?

Differences between Toyota Izoa and C-HR include different manufacturers and lower grille designs. Below are details about these differences. Different Manufacturers: Toyota Izoa is produced by FAW Toyota; C-HR is produced by GAC Toyota. Different Lower Grille Designs: The lower grille of Toyota Izoa features horizontal bars; the lower grille of C-HR has a mesh design. The C-HR measures 4360mm in length, 1795mm in width, and 1555mm in height, with a wheelbase of 2640mm. In terms of power, the C-HR is equipped with Toyota's 2.0L naturally aspirated engine, delivering a maximum power of 171kW, a thermal efficiency of 40%, and a peak torque of 205Nm.
5
5
Share

Which has a higher success rate, self-scheduling or system-arranged scheduling for Subject 3?

Subject 3 self-scheduling and system-arranged scheduling have the same success rate. Additional information is as follows: 1. Self-selection of exam sessions: The system will display all exam session lists within the selected application period, allowing users to choose one or multiple sessions for scheduling. 2. System-arranged scheduling: The system will automatically match eligible exam sessions within the selected application period. 3. Subject 3: Also known as the road safety driving test, it is part of the motor vehicle driver's license assessment, referring to the road driving skills and safe civilized driving knowledge test. Different license categories have varying road driving skill test content.
5
2
Share

What are the reasons for weak airflow in Wuling Hongguang S?

The reasons for weak airflow in Wuling Hongguang S include: poor fan resistance, dirty air conditioning filter, and low fan speed setting. Below are the relevant details of Wuling Hongguang S: 1. Dimensions and weight: The classic Wuling Hongguang S has a body size of 4400mm in length, 1660mm in width, and 1750mm in height, with a wheelbase of 2720mm, front/rear track of 1420/1440mm, curb weight of 1206~1265kg, gross vehicle weight of 1825kg, and fuel tank capacity of 50L. 2. Power: The engine models are LMH/L2B, with a displacement of 1206/1485cc, combined fuel consumption of 6.6/6.8L/100km, and rated power of 60.3/77kw.
13
0
Share

Why does the Audi A4L alarm go off for no reason?

The reasons why the Audi A4L alarm goes off for no reason are: 1. Alarm sounds after locking the car: After parking, if the main driver's door, passenger door, two rear doors, front hood lock, or trunk lock are not properly closed or if the lock switch is damaged, it can cause poor contact, leading the vehicle's alarm system to activate after turning off the engine and locking the car. 2. Sounds inside the car: Since the Audi A4L is equipped with an ultrasonic alarm function inside the car, as long as the vehicle is locked and ultrasonic waves or sounds are detected inside, the car will automatically sound the alarm. For example, after getting out of the car, if there are children, pets, or even flies or mosquitoes inside, the vehicle will emit an alarm sound.
10
1
Share

Where is the fuel filler switch on a Volkswagen?

Volkswagen vehicles do not have a separate fuel filler switch. Pressing the left side of the fuel filler cap will cause it to pop open automatically. Please note that the fuel filler cap can only be opened when the vehicle is unlocked. The actual remaining fuel level in the tank cannot be accurately determined based on the fuel gauge on the car's dashboard. Most car fuel gauges operate via an electronic sensor that moves up and down with the fuel level in the tank. When the sensor transmits the electronic signal to the fuel gauge needle, the displayed reading may not be entirely accurate. The Sagitar is a compact car under FAW-Volkswagen, with dimensions of 4753mm in length, 1800mm in width, and 1462mm in height, and a wheelbase of 2731mm. In terms of exterior design, the chrome trim added to the lower character line on the side of the Sagitar connects the chrome trims on the front and rear bumpers, giving the vehicle a more streamlined visual appeal.
8
3
Share

Where is the trunk button on the Toyota Prado?

The trunk button of the Prado is located below the steering wheel and rearview mirror control buttons. Here is more extended information about the Toyota Prado: 1. Basic introduction: The latest model in the Toyota Land Cruiser (Land Cruiser Prado) series, this newly developed next-generation off-road vehicle is equipped with a newly developed Toyota six-cylinder fuel injection 1GR-FEV6 engine, with a displacement of 3956cc, excellent power performance, and exhaust emissions that meet the latest European Ш standard, making it highly environmentally friendly. 2. Vehicle configuration: The headlights and grille are more similar to the current Land Cruiser. The body dimensions are 4820/1885mm/1800mm, with a strong overall sense and aesthetic appeal in the rear design. The externally mounted spare tire is hidden under the body, and the rear door's glass window can be opened separately. The rear windshield wiper is hidden inside the spoiler.
19
3
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.