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      01-17-2013, 03:12 AM   #1
Lieutenant Colonel

Drives: 2012 335i Sedan
Join Date: Oct 2012
Location: Vancouver, Canada

iTrader: (0)

N54 coils and spark plugs.

K, got 103km or 64miles on my 2007 e90.
Want to change all spark plugs and possibly 1 coil pack.
Here is my questions:

1) what bosche part number is good to go? Is there a spark plug part number I should be avoiding? Like a manufacturers date, or old part number?

2) if I understand this correctly, all coil parks for the n54 are by BMW I won't have to worry about aftermarket cheap crap.
Is there a update part or not?

3) is programming need to be done when I change out either spark plugs or am I good to go with a straight swap.

4) how to tell if I have an injector problem or not?

Thanks in advance.