Quote:
Originally Posted by perry8912
Other then change plugs more often, what else? I was told the coils and injectors are tend to failure even on stock engine. Maybe HPFP as well?
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HPFP is good on X5. Only plugs and coils mainly. BTW they are not expensive. X5M plugs are dirt cheap $4 for a plug (you need to gap them yourself to your liking). Newest Bosch coils (new design) are about $28 per coil. You can buy a set of 8, but even 1 extra coil would be good to have in case you need to swap them. It's a DIY job, nothing hard.
This is really not that different than a n55 6-cyl. engine. We just have 2 more plugs and 2 more coils
