All 104 w/dist-less list the 000 158 70 03 as correct
I don't see any 75-03 for 104, although the part is a listed part
I think you may have had a bad oem Blue coil and they changed it out w/wrong part#..
Fastlane list a Bosch coil ..[ $65]
What did they finally replace it with ?? [ make/part#]