For maintaining the optimum performance of the engine, the spark plugs need to be cleaned without affecting the electrodes. If the spark plug is dirty, it will affect the movement of the engine. When the spark plug is dirty, then it will cover with outside contaminates. Driving with bad spark plugs can cause a lot of problems in the engine. Go through the video to identify the symptoms of the bad spark plug in the Mercedes-Benz.
https://www.youtube.com/watch?v=aV3P0c_B7so
