|
I had mine replaced last month at around 70k miles ..my symptoms same as OP ..rough idle and CEL on cold starts . In CA all we have is 91oct. BMW NA did a goodwill replacement on mine as out of warranty the original quoted cost was north of 8k. I don't drive to hard but now consistently getting 19-20mpg as I do mainly highway miles as this is daily driver for me . These injectors are definitely issue as BMW must have fixed in new S63 engine in M5 as you don't hear about these issues from that forum.. Press your service advisor to contact BMW NA as they can do something
|