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rough idle

  1. cold start and rough idle R53

    First Generation Faults & Fixes
    2006 R53 Cooper s when starting in the morning it doesn't start first time, the engine cranks but it won't start however it starts immediately on second attempt, this doesn't happen any time other than the first time its driven in the day. I can go back to the car 6 hours after driving it and...
  2. 2009 Mini Cooper S Standard - N14 R56 - Dying at idle / No Boost / Stumbling Acceleration Problem

    MINI Faults & Fixes
    Let me describe in detail how the car drives since this issue began. Start up the car and everything seems perfectly normal. Pull out of the driveway and start driving in 1st and 2nd gear, everything seems normal. Once it warms up just a little bit, and especially once I take it above 2nd gear...
  3. N12 idles rough when cold, will not idle when hot. This one is different!

    Second Generation Faults & Fixes
    Hi everyone, I've got a story for you. I bought a cheap 2009 70k mile/113k km automatic Justa that had previously been overheated and developed a persistent misfire in #2 but still had good compression. Head was pulled and found to have a dropped valve seat along with a displaced rocker (popped...