How to Replace the Battery of a Mercedes-Benz GLA?
3 Answers
It is necessary to find an AGM battery with the same specifications as the original vehicle. If the specifications are different, it may cause the engine module to receive insufficient voltage, resulting in the inability to clear the fault warning light. For a power-off replacement, first remove the key from the vehicle and wait for 5 minutes to allow the vehicle to enter sleep mode before proceeding with the replacement. When connecting the battery terminals, connect the positive terminal first, followed by the negative terminal. After installation, you can spray anti-rust protectant or acid-free grease on the battery terminals for protection. Start the vehicle and check if the electrical system is functioning properly.
Last time I replaced the battery of my Mercedes-Benz GLA by myself, and it felt quite simple. First, turn off the engine and open the hood. Wear gloves and goggles—safety first. Then, use a wrench to disconnect the negative cable terminal to prevent short-circuiting and sparks. Next, disconnect the positive terminal. Remove the battery clamp as well, being careful not to damage the car body. The old battery is heavy, so having a helper makes it easier. When installing the new battery, ensure the direction matches the socket to avoid reversing it. After securing the battery, reconnect the positive cable first, followed by the negative. Finally, start the car to check if the lights and air conditioning are working properly. The whole process takes about 20 minutes, and the tools needed are just a wrench and a screwdriver. Opt for an AGM-type battery for better durability. Regularly checking the battery lifespan can save you trouble.
As a DIY enthusiast, replacing a car battery requires preparing tools: a 10mm wrench and a new battery costing approximately 500-800 RMB. Key steps: turn off the engine, open the hood, and locate the battery at the front. First, disconnect the negative terminal to isolate the risk, using the wrench to loosen the nut. Then, disconnect the positive terminal. Remove the screws of the fixing bracket and take out the old battery. When placing the new battery, ensure the electrodes are correctly oriented to the right and secure it tightly. Reinstall the positive cable nut first, followed by the negative terminal. Test by starting the engine to see if the dashboard lights up. The entire process takes 10-15 minutes, with simple tools and cost savings, but if the battery's lifespan is short, replacing it early can avoid breakdowns.
