OEM NGK spark plug, same part used to service your BMW
(2 step colder for N54, 1 step colder for N55)
Spark plugs are an often overlooked maintenance item. If your BMW has developed a misfire, studders, or feels down on power it could be due to worn out spark plugs.
Please note Tightening torque for this spark plug is 23 ± 3 Nm, a special 14mm, 12 point spark plug socket is required for removal and installation of this plug.
Spark Plug Failure Symptoms:
- Misfiring
- Check Engine Light
- Hesitation
- Loss of Power
- Poor Fuel Economy