Shopping for BMW 335i Engine Oi and Filters on sale?
One of the popular problems with the BMW 135i and 335i is misfires and they are almost always attributed to worn out spark plugs. Change out your spark plugs every 20,000 miles on your BMW N54 Engine to avoid misfires. You will need the special BMW N54 Spark Plug tool to fit your new spark plugs as the regular sockets will not work.
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For more questions on maintenance please feel free to contact us with any BMW 135i / 335i questions.