Where is the auxiliary battery located in a Mercedes-Benz C-Class?

1 Answers
McJudah
07/29/25 9:01pm
The auxiliary battery of the Mercedes-Benz C200L is located in the engine compartment. To access it, pull the engine compartment release lever located below the left side of the driver's seat to unlock the engine compartment. After unlocking, pull the front lever of the engine compartment to lift the hood. Function of the auxiliary battery: The auxiliary battery in a Mercedes-Benz provides power to the entertainment system, windows, and lighting system during startup. If there is a fault with the auxiliary battery, it is necessary to check the meaning of the fault code for repairs, as it could indicate low battery voltage or a damaged battery. Reducing or avoiding engine shutdown: To properly use and maintain the battery in daily use, try to minimize or avoid using high-power automotive electrical equipment (such as air conditioning, audio systems, etc.) when the engine is off or idling. Before leaving the vehicle, ensure all electrical devices are turned off.
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