I am picking up a 2011 550i Monday. I was curious if its smart to change out spark plugs and coils and map sensor before buying the jb4 or bms stage 1. The car has 60k miles on it and it's all stock.
Do you have any maintenance history of when the plugs were last changed?
I would probably just roll it as is. But I do believe the spark plug change interval is every 3rd or maybe 4th oil change.
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ASE and BMW Master Certified Technician
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