The M5 ownership has never a dull moment. Last week I have another misfire, this time it’s the opposite symptoms. Misfire on cold start, no misfire when the engine is proper temp. Sure enough the other ionic current control unit was the issue. I didn’t bother to swap the units anymore just bought the part and replaced it. This is about $500 USD / $750 NZD each, well at least the labor was free. This is easy to replace yourself if you are careful. 2 test drives today, no more misfires. Ok I hope the rest of 2024 will be boring.