Someone knows what this sound is coming from? Deep thumping popcorn sound like, (not the injectors high pitch sounds)
Car shakes when idling at 950+- rpms aswell after a start. No fault codes.
Car tends to be kinda rough and shakes the car time to time on the cold starts, sometimes a bit of up and down rpm fluctuations aswell. This has happened with the warmer weather, or if only a coincidence. No fault codes, spark plugs changed 12k km ago, running 98 oct stage 1 mhd. Stock everything, no burble tune.
Seing others having a similar experience, and some saying it’s normal? First time owning a b58 since winter, so I don’t know if it is normal.
After the car is warm and sitting in idle, usually nothing is noticeable. Only occasionaly barely a hiccup. Otherwise car drives and pulls good. But even when the engine is warm, if I start the car again, it will be more shaky again on the startup.
Any feedback would be appreciated.