just been looking through my massive wad of receipts , these are the plugs I'm running ,
BMW X5 4.4 4.6 E53 BOSCH SUPER 4 PERFORMANCE UPGRADE SPARK PLUGS SET OF 8 NEW
I bought them on the 13th September 2014 they have done about 15k miles in the car, ive read on forums today, that the x5 4.4 doesn't really like these plugs and the preferred set is these
BKR6EQUP
?
ive got the drivers side gasket in a box in the garage , just waiting for a suitable nice day to repair , ( but its the north UK might be waiting a while)