Where is the auxiliary battery located in the GLA200?
2 Answers
The auxiliary battery in the GLA200 is located on the right side of the engine compartment, next to the brake fluid reservoir, under a black cover. Method for replacing the Mercedes-Benz GLA battery: First, open the battery compartment. You will see a fixed bar secured over the battery. Use an 8mm wrench to loosen and remove the bar. Then, disconnect the positive terminal first, followed by the negative terminal. After that, place the new battery in position to complete the replacement. Precautions for battery replacement: The reason for disconnecting the positive terminal first is that it can react with metal, most commonly causing sparks, which might burn the contact point. Therefore, be careful not to let the positive terminal come into contact with any other metal during the removal process.
In my experience, the auxiliary battery of the Mercedes-Benz GLA200 is typically located under the floor of the trunk. Specifically, you can directly see it by lifting the trunk carpet or storage cover, positioned towards the right corner. This design aims to balance the vehicle's weight and free up space in the engine compartment. The auxiliary battery mainly powers auxiliary systems, such as electronic start-assist or emergency equipment. If you need to inspect or replace it, it's recommended to do so during regular maintenance. Ensure safety by disconnecting the main battery beforehand and wearing insulated gloves to prevent electric shock. The exact location may vary slightly depending on the model year, but in most GLA200s, it's fixed there—finding it takes just a minute once the trunk is open. Never overlook signs of battery aging, as a failing auxiliary battery can affect vehicle startup. Keep the surrounding area dry and clean to avoid corrosion. From a space utilization perspective, Mercedes' layout is quite ingenious, avoiding interference from the main battery while also making maintenance somewhat easier.
