If you don't mind the drive to El Cajon, go to Cunningham and ask for Natasha. Tell her you want Nick Owens to be your tech. He's an active BMWCCA member and works on a lot of the club M-cars. He'll take the time needed with your car and will give you a complete run-down of everything he did.
2016 Agate Grey GT4 PCCB LWB PCM
2013 Mineral White e92 M3 DCT ZCP ZPP