There is a light ticking sound that follows engine speed for the first few minutes and then becomes hard to hear. Oil level is correct. How would you separate normal injector noise from valvetrain no…
This started as a small annoyance and I finally decided to track it down. 2020 BMW M2 Competition, about 120,500 miles. A cylinder-specific misfire code appeared after one rough start, then cleared a…
Scanner showed a cylinder-specific misfire code after one rough start, but the car feels completely normal now. Plugs aren't that old. Would you swap coils to see if the code follows, or just monitor…
I'm seeing the oil level fall enough between services that I now check it regularly. No obvious leak. For other turbo owners, what documentation/tests did you collect before bringing an oil-consumpti…
A catalyst efficiency code came back after clearing once. The car drives normally and there are no misfire codes.
