While issues starting your BMW can stem from your battery, faulty spark plugs can also be something that makes your car refuse to start or have a hard time starting. Spark plugs may be small, but they have the big job of delivering the essential spark needed for your engine to rev. You rely on them to ignite the mixture of air and fuel that is present in your vehicle's combustion chamber by producing a spark in your car's cylinder heads. Spark plugs also have the job of helping to disperse the heat that is produced in the chamber. The spark plugs are something that can handle high amounts of heat, but they can wear out just like any other part in your vehicle. If they start to fail, they might not produce the electricity needed at the right time to get your car to start properly. You might notice that it takes more of an effort to start your vehicle if your spark plugs are starting to go. If you notice a decrease in fuel economy, rough idling, or like we mentioned, a hard time starting the car, get the spark plugs looked at and buy OEM replacements here when needed.
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