What are the reasons why a Mercedes-Benz cannot start?

[OMatteo]

Here are the reasons why a Mercedes-Benz cannot start: 1. Dead battery: Sometimes you may find that the car cannot start normally in the morning. It is likely because the trunk was not completely closed, causing the trunk light to stay on and drain the battery. 2. Spark plug failure: Spark plugs themselves are prone to damage, and short circuits in high-voltage lines can prevent the spark plugs from firing. Additionally, poor-quality spark plugs can also lead to failure to start normally. 3. Starting circuit malfunction: When starting, there is only a slight "click" sound with no further response. This is caused by a stuck starting relay. In this case, simply pressing the tail of the solenoid to force it forward can connect the starting circuit, allowing the engine to start.