What are the causes of Mercedes-Benz motor failure?
2 Answers
Mercedes-Benz motor failure may be caused by damaged electrical equipment or faulty control switches in the circuit. Below are the specific causes and solutions for Mercedes-Benz motor failure: Specific causes: Damaged electrical equipment, faulty or poor contact of control switches in the circuit, damaged protective devices in the circuit, poor circuit grounding, damaged wires in the circuit, etc. The specific fault and repair method need to be identified based on the actual symptoms. Solutions: If the motor fails, it is recommended to go to a 4S shop for inspection and repair as soon as possible. When going for after-sales maintenance, be sure to ask the after-sales service to issue a formal maintenance work order. The formal maintenance work order will be recorded in the manufacturer's system for query and traceability. Do not accept an ordinary handwritten order, as it will not be recorded in the manufacturer's system.
Last time I drove my friend's Mercedes hybrid, I encountered a motor failure—what a headache! The mechanic said the most common motor issue is bearing wear, caused by too much aggressive acceleration and braking in daily driving, which the bearings can't handle. Another problem is coolant leaks in the cooling system. Since Mercedes motors operate at high temperatures, any coolant leakage immediately causes overheating and shutdown. Additionally, a faulty battery management module can lead to unstable power supply, causing erratic motor speed fluctuations. Oxidized connectors are particularly annoying, especially in humid southern climates where wire terminals can corrode and cause poor contact. And then there’s the nightmare of magnets detaching from the rotor—repair costs for that can be sky-high. If you run into these kinds of issues, it’s best to go straight to a professional shop for diagnosis instead of trying to fix it yourself.
