How difficult to change plugs on 335i? Any special considerations? Is antiseize recommended on threads? Recommended torgue? App time to replace?
There have been DIY's posted There have been DIY's posted on various forums. It's not hard - pulling the coil pack off seems to be the hardest part. You need the proper socket. You need a torque wrench. You don't want to use anti-seize. N54 engines need new plugs every 45K. Use only OEM. Also, you need to remove the a/c filter to access the engine cover's back fasteners - IIRC.