I had this code come up on the weekend about a mile from home. I limped back home and long story short I was surprised to find out that the coils installed
in my car (2002 M Roadster) are the Bremi coils with a datecode of 45/01. The surprise is the engine was replaced with a remanufactured one in April 2009.
I am not sure who did the rebuild but I assumed the coils would be the newer Bosch by then. I have ordered all new coils and plugs and can`t wait to get them so I can replace them all. I have taken several very long and remote drives with this car and I am happy that this happened close to home but unhappy about the old coils.