Why is the Mercedes Smart not responding when starting?

[DelMary]

Mercedes Smart not responding when starting may be due to battery leakage, resulting in insufficient power to start. Additionally, it is recommended to check whether the spark plug ignites and whether there is a fault in the starting circuit. The specific reasons are as follows: Battery is dead. Sometimes you may find that the car cannot start normally in the morning, which is likely because the trunk was not completely closed, causing the trunk light to stay on and drain the battery. Spark plug fails to ignite. The spark plug itself is easily damaged, and short circuits in the high-voltage lines can also cause the spark plug to fail to ignite. Another reason is that poor-quality spark plugs can also lead to failure to start normally. Starting circuit failure. When starting, there is only a slight "click" sound with no further response, which 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, thereby starting the engine. Solution: Seek professional maintenance from a 4S store to inspect the specific cause.