2009 Bmw 335i Ngk Spark Plugs. Generally your bmw 335i spark plugs should be replaced about every 30 000 to 40 000 miles. Spark plugs and ignition coils are the achilles heel of the n54.
These are the ngk coils for the bmw n54 engine that were just released in 2017. Due to the plugs thinner design we ll need a narrow 12 point 14mm or 9 16 spark plug socket. Bmw 335i spark plugs utilize high voltage electricity to produce the electrical spark required for fuel to ignite.
Gappable two step colder plug set for your high performance n54 brand.
Check if this fits your vehicle 21. The chart above applies to all bosch and ngk spark plugs. Free in store or curbside pick up. The ones i hear about the most have to do with a bad internal turbo wastegate as well as fuel issues be it the pump or the piezo injectors.