My 'new to me' E90 335i started with a single misfire, then tragically cracked the valve cover during the polar vortex. While she was on the operating table for that [and cold weather] I took her to BimmerWerkShop in Beltsville Md. Amr did the work on the car. Outstanding results. Valve cover was replaced. Plugs and Coils Pictures of the blasting. - Before [all ports basically were this bad or worse] After All 6 ended up like this -Amazing transformation Off idle hesitation and part throttle responsiveness night and day .
Congrats! Great results. Curious, how many miles did you have on her, how much did it cost and have you since installed a catch can as preventive maintenance? We just purchased a 09 535i M Sport package. No issues right now. Something I've thing about learning more about these cars with DI. Will be adding Seafoam to the gas tank to help clean injectors and use SF spray into throttle body to help clean carbon deposits along with installing catch can (BMS?) Thanks, John https://www.youtube.com/watch?v=AdC9aETN5H0
