Can the Mercedes-Benz C-Class still be driven with a 48V fault?
2 Answers
Mercedes-Benz 48V motor fault cannot be driven. If the motor does not work, the engine cannot be started after stalling. Vehicles equipped with a 48V motor start the engine through this 48V motor, unlike other cars that use a starter motor to start the engine. The following is an introduction to Mercedes-Benz 48V: 1. Introduction: The Mercedes-Benz 48V system increases the vehicle voltage to 48V. Components such as the air conditioning compressor and power steering pump, which were previously driven by the engine, have been converted to electric drive. On this basis, a larger battery is used, and a higher-power integrated motor is added between the engine output and the transmission. 2. Function: The main role of the Mercedes-Benz 48V motor is to start the vehicle and recover kinetic energy. At the same time, during low-speed stop-and-go driving, it can directly drive the vehicle without starting the engine, and it can also assist the engine in power output during acceleration. The core components include a 48V battery, a 48V starter motor/generator, a 48V/12V (DC/DC) voltage inverter, and corresponding control modules. If the motor fails, it is recommended to go to a 4S shop for repair as soon as possible.
I've been driving a Mercedes-Benz C-Class for several years, and issues with the 48V battery system are quite common. When the warning light comes on, it indicates that the assistance system has failed. The car can still start and drive because the engine itself isn't damaged, so don't worry about a complete breakdown. However, the auto start-stop function will definitely be disabled after starting, and you may feel a lack of power during acceleration, along with possibly increased fuel consumption. Try to maintain low speeds while driving—it's okay to drive slowly on city roads, but avoid long-distance trips or highway driving to prevent voltage instability from damaging the circuits. I've noticed that such faults are often caused by battery aging or loose wiring, and delaying repairs might affect other components. For safety, it's best to drive straight to the dealership for a check-up when you see the warning light, even if it takes some time for the inspection.
