BMW is using a newer injector now and if you replace one in the bank then all 6 have to be replaced if you have the old ones. I took my car in last month due to misfiring and they replaced one bank of injectors (eventhough I only had one bad injector). Luckily i had a misfire in the other bank when they tested the injectors and they replaced my other bank of injectors.
Originally Posted by Mac Hadley
There is no logic to the action on the fuel injectors. Sometimes it's ok to replace less than the full set, but now it is not?
2009 AW 535i
-Sport, Premium Package, and Comfort Access
-FBO, custom Cobb E30 map, Performance Gearing LSD.
Last edited by booyaazaa; 02-28-2013 at 07:15 AM.