
Mercedes-Benz batteries are located in the upper right corner of the engine compartment. The functions of the battery are: 1. When starting the engine, the battery supplies power to the starting system, ignition system, and electronic fuel injection system; 2. When the engine is stopped or idling at low speed, it powers the vehicle's electrical equipment; 3. When the generator output is insufficient, it supplies power to the electrical equipment; 4. It mitigates impact voltage in the electrical system and protects the vehicle's electronic devices; 5. It stores excess electricity generated by the alternator. Car battery maintenance methods: 1. Avoid parking the car in an open parking lot for extended periods; 2. In winter, avoid repeatedly starting the car without intervals; 3. The car battery should be charged frequently; 4. Regularly clean the battery terminals and apply grease to protect the wiring harness.

I remember driving several Mercedes-Benz models, and the battery location actually varies depending on the vehicle type. For most sedans like the C-Class or E-Class, the battery is under the hood on the right side or front of the engine compartment, usually covered by a plastic case that's visible once you open the hood. SUVs like the GLC might also have it there, but high-performance AMG models or the S-Class often relocate the battery to the trunk floor—just lift the rear cargo mat to find it. The last time I helped a friend replace a battery, his GLC had it hidden in the front engine bay. Why does Mercedes design it this way? Primarily for weight distribution: front-wheel-drive cars place it upfront to save space, while rear-wheel-drive models position it at the back to enhance stability. Always check the owner’s manual first to confirm the location—don’t guess. For DIY maintenance, ensure the engine is off, wear insulated gloves to avoid electric shock, and clean corroded terminals if needed. Overall, it’s quite user-friendly—nothing too complicated once you get familiar.

When I used to drive a Mercedes, I also asked similar questions, and finding the battery wasn't that difficult. Generally, after lifting the hood, look near the engine at the front right corner—there's usually a black protective box covering it. For some models, like the station wagon, it's placed under the left side of the trunk. If you can't find it, don't worry; check the vehicle manual or the instruction sheet provided by the dealer—it's all clearly marked. I often advise friends to bring simple tools like a socket wrench for loosening screws when trying for the first time. Mercedes designs with safety in mind, placing the battery away from areas frequently accessed by the owner to minimize accidental contact. During routine maintenance, take a moment to check if the terminals are oxidized. If they're heavily soiled, gently clean them with water and a toothbrush to maintain cleanliness. When the battery is nearing the end of its life, symptoms like flickering headlights or slow starts will appear. If you notice such signs, prepare a new battery early to avoid being stranded.

The location of the Mercedes-Benz battery, based on the models I've seen, is most commonly found under the hood. For models like the A-Class or CLA, lifting the engine cover usually reveals it near the fan or at the front side of the chassis. SUVs such as the GLB might have it more concealed, but opening the rear door and lifting the floor mat can uncover it near the spare tire area. Mercedes-Benz emphasizes compact design in their layout, optimizing battery placement for space efficiency. Regularly check for corrosion yourself, but avoid tampering with the electrical circuits.


