Spark plug plays the most important act of starting the engine of a car. So it should be maintained properly. Check the color, wetness and physical appearance of your spark plugs as an indicator of where the faulty ones may be. Watch this video to know everything about the spark plug of your car. Contact Eurobahn BMW MINI Mercedes-Benz Audi Greensboro NC to check your spark plugs and get you set up on the best maintenance schedule for your European model car.