N52 (3.0) coils - Bosch vs Delphi?

[g3org3y]

Wife drove the 630i to work today and it decided to play up with a misfire + EML.

Code reader suggests misfire in cylinder 1.

Could be spark plug - but those were only changed 10k ago. Alternatively coils or injectors.

Re coils - I notice ECP have options for Bosch or Delphi. Which is considered the best?

[Charlie Croker mk2]

LOL "only" 10 k ago . Swap the No1 coil with another to see if the fault goes with it ? The 2 coil replacements will be fine probably no internal difference at all .

[chriscoates]

As has been said either will be fine - I think when I checked the coils on my 130i the originals were Bosch ones, but BMW may have changed suppliers depending on the year or which version of the N52 you've got (aluminium or plastic engine cover).