I wish I saw this thread sooner. I had a check engine error early this summer and I read on here that the spark plugs was the problem. Brought it to a local garage that specializes in BMW repairs (not a dealership). The mechanic ended up charging me $900 for replacing the coil pack + spark plugs. My jaw dropped...
Maybe I should order some spark plugs for future use lol...PM me price please
2007 335i SGM (Vinyl Wrapped - Matte Gray Aluminum) + Coral Red
Volk Racing CE28n Candy Red | JB4 | AMS FMIC | AR DPs | Injen DCI | BMS OCC | KWV1 | M3 Control Arms | OEM Aero Lip | BMW Performance Spoiler | LUX H8 V3 | Matte Black Grills | Cyba Tips | M-Tech Rear | Custom Alcantara + C/F M3 Steering Wheel | M3 Side Skirts | Vinyl C/F Roof | Fabric C/F Interior Trim | LCI Tail Lights | DD Fins Diffuser