dct n54 fail seize leaking injector

  1. Benji335i

    Rare N54 failure 335i

    Where to begin, my 335i had done 90,000km and seized on me. I had the usual bolt ons: DP CP Panel filter Custom tune TCU update Throughout the day drive around I could here this knocking noise I didn’t have a clue what it was... Later in the day the car just failed on me. Transpired that I had...