Where is the auxiliary battery located in the GLA200?
3 Answers
The auxiliary battery of the GLA200 is located under the black cover on the right side of the engine compartment, next to the brake fluid reservoir. Its functions include: providing power to the starting system, ignition system, electronic fuel injection system, and vehicle electronics during engine startup. Taking the 2017 GLA200 as an example, its body dimensions are: length 4449mm, width 1804mm, height 1535mm, with a wheelbase of 2699mm. The 2017 GLA200 is equipped with a 1.6L turbocharged engine, delivering a maximum horsepower of 156PS, maximum power of 115kW, maximum torque of 250Nm, paired with a 7-speed DCT dual-clutch automatic transmission.
I remember when servicing the Mercedes-Benz GLA200, this small battery is usually hidden at the bottom of the trunk, in a quite concealed spot. You need to lift the carpet under the rear seats or flip open the storage layer in the trunk to find a plastic cover panel. Opening it will expose the battery. This design is mainly to save space in the engine compartment and protect the battery from high temperatures that could shorten its lifespan. For regular self-inspection, it's best to bring a Phillips screwdriver and gloves to handle it gently, avoiding scratches to the interior. I've noticed some owners neglect regular maintenance, leading to poor contact. It's recommended to clean the battery terminal dust every six months and keep it dry to prevent short circuits, which can genuinely extend the battery's life by a year or two. If you're a complete novice, it's safer not to tamper with it yourself and let a professional shop handle it, especially since high-voltage circuits can be dangerous if mishandled.
As a longtime GLA200 owner, I've experienced several dead auxiliary battery incidents. The battery is located in the trunk - more precisely near the rear seats. Lift the floor mat and you'll find a marked small panel. Remove the screws to access it. While not the most convenient location, it's definitely easier to reach than the engine bay, and the battery suffers less from summer heat. When replacing it myself, I just used a regular wrench with insulated gloves, though the bolts might get stuck - remember to turn them slowly. Important reminder: always disconnect the main power switch beforehand to prevent electric shock, and preferably do the replacement in a parking lot to avoid affecting other components. Daily maintenance tip: avoid storing wet items in the trunk to prevent corrosion on battery terminals, and regularly check voltage levels with a multimeter to ensure smooth engine starts.
