[Bimmerson123]

Hi guys, I also posted in f10 forum and I realized that there is a forum for GT inly now I recently got a 2010 550i GT with 170 km on.
Car is jerking at idle and it sometimes gives me DTM when I start the engine. DTM goes away when I turn off the engine and restart it.(100% of the times so far) There was only one time it gave me DTM while driving and I was close to flooring it.(This also went away when I pulled up and restarted the engine)
As some symptoms I am experiencing, I think the exhaust smells bad and I think it comes into the car as well. Jerking at idle but the RPM stays stable. When I scan it, I got code 118102 'Mixture control 2, mixture too rich.'
Following parts were replaced in the last couple months.
- Oil and filter
- Spark plugs and coils
- O2 sensor
- PVC valve crankcase
- High pressure injection pump
- Battery

Would you guys have any idea of what's causing the issue?
I'd appreciate the opinions of fellow BMW owners! Thank you.