If you do a Sparkplug change are the coils required to be changed as well?
No
Thanks for the help! I guess why change them if they are doing just fine no codes.
If you don't have any misfires, then no need to replace them. The Bosch coils are known to fail, and BMW began using a part from Delphi, and issued a service bulletin for cars that were still under warranty to replace all of them if one fails.
ASE and BMW Master Certified Technician
I seen there is alot of Delphi counterfeit parts out there have you ordered any your self lately?
No, I work at a dealership, and only use BMW parts.
ASE and BMW Master Certified Technician
Ok thanks man
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