Auto Answers » Engine » Mini

Mini engine repair questions and answers

Post your Mini engine question or share what you know by answering questions

40 Questions
Sort by:
  • Warren
    Warren - 2012 Mini Cooper - Engine - 3/12/2015
    My check engine light is on and there is a loss of power
    The check engine light is on it's yellow color yellow when it starts it runs rough and then when you try to drive it is shimmies in with her with the loss of power
    • Jimm
      3/12/2015 Jimm
      The check engine light is located on the dash and stays on if the computerized engine control system detects an engine performance or emissions problem.

      First step - have the stored fault codes or check engine light scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA. Then, post a reply as 'add answer' with the specific code for more assistance. There may be a fault code stored in the OBD memory which may not be displayed as a check engine light.

      Do not skip this important first step - there are literally hundreds of possible fault codes. Avoid wasting/ throwing money at the problem.
  • susan
    susan - 2009 Mini Cooper - Engine - 1/11/2015
    Well first of all. My mini started shutting down on me like some one turn off a switch.
    7300.00 miles. check engine light came on first 02sensor we replaced both. check engine came back on . husband took off manifold catalytic found screen melted. put back on . no more check en light but turns over but wont start.
    0 answer
  • Chuck
    Chuck - 2006 Mini Cooper - Engine - 12/20/2014
    Engine won't turn over battery just clicks.
    What do I do next?
    • Teddy B
      12/20/2014 Teddy B
      What did you do so far?

      I would think you know how old the battery is &
      have tested that before coming here & had the
      starter tested as well

      Do you have no repair shop you go to several times
      a year & have been using for decades?
  • terrymacadaan
    terrymacadaan - 2007 Mini Cooper - Engine - 5/30/2014
    My mini rotates but the engine will not start-what is the problem?
    Engine cylinder head gasket was replaced due to overheating.
  • livetoride87
    • HouseCallAuto
      6/6/2013 HouseCallAuto
      About $175 parts and labor.
      6/6/2013 HouseCallAuto
      Posted labor time for thermostat is between 1.5 and 1.7 hours and the genuine OE part lists for $32 plus a gallon of coolant for about $15.
    • Jimm
      6/6/2013 Jimm
      The parts cost; thermostat = $3.50 or so, the thermostat gasket / seal = around $4.50 or so. The labor to replace will probably be around 0.50 hour - so depending on the repair shop, maybe $40.00 for the labor charge. Then, you'll need the anti-freeze to refill the cooling system @ $10.00 to 15.00 per gallon - maybe use a couple of quarts of anti-freeze.
  • poli554
    poli554 - 2005 Mini Cooper - Engine - 3/17/2013
    What are the best spark plugs to use for a 2005 mini Cooper S?
    Changing spark plugs
    • CVO
    • Jimm
      3/17/2013 Jimm
      Here are just a few of the spark plug types that fit your engine and application; (source

      CHAMPION Part # 33182 {#3318} Platinum Power .044 Gap

      AUTOLITE Part # AP5224 Platinum Gap .044

      DENSO Part # 4504 {#PK20TT} Platinum TT Plug - Twin-Tip design with Titanium Enhanced Ground Strap Gap 0.040

      NGK Part # 7092 {#BKR6EGP} G-Power

      BOSCH Part # 4417 OE/Specialty Do not gap. Gap is not adjustable.

      BOSCH Part # 4303 PLATINUM+2 Do Not Gap, Gap is Preset

      ACDELCO Part # 41806 {#19238471, 19250978, 88901012} PLATINUM PLUG
      .044 Gap

  • mikebistro
    mikebistro - 2009 Mini Cooper - Engine - 1/9/2013
    After driving my Mini through water the engine light came on. Is it safe to drive?
    It starts and appears to sound ok.
    • CVO
      1/9/2013 CVO
      Check the vehicle for fault codes to see if there are any sensors were involved to the malfunction of the engine.

      1.Local auto parts stores such as Autozone ( not in California) or Advance Auto parts will scan and retrieve any diagnostic trouble codes ( dtc ) stored in the powertrain control module for free of charge..

      2. has the code reader for less than $20.00 dollars.

      3.Re-post the dtc's in here " answer question " for further assistance.

      Note: we need the dtc's to identify the sensor, there are a dozen different sensors to operate the car.

      Visit this site and see all the different sensors.

      Navigate to this site and see the code reader
  • Majorcarebear
    Majorcarebear - 2005 Mini Cooper - Engine - 1/8/2013
    Check engine light on and off, when off my tire lt, dsc lt, temp gauge, a/c off and speedometer gauges stop working.
    These bounce back and forth. Had it in shop, can't find issues. Loose connections in dash corrected temporarily. Now doing it again!
    0 answer
  • jsdsgn
    jsdsgn - 2008 Mini Cooper - Engine - 10/13/2012
    My car is not holding an idle. It has started dying when I remove my foot from the gas pedal at a stop
    This started occurring today.
    0 answer
  • Coop Deville
    Coop Deville - 2003 Mini Cooper - Engine - 8/20/2012
    My 03 mini cooper s overheats in traffic. Fan not comming on when temp raises. Changed everything and stumped. Pleashelp
    Fan won't come on at temp. Only when I use a/c. I Did mouser resister mod, thermostat, water temp sensor, relays and fuses. One clue I get is when I jump 12v at the radiator fan plug I get low speed function (blue/red) wire but no function at other (red) lead. Ps ...
    0 answer
  • dodah457
    dodah457 - 2009 Mini Cooper - Engine - 8/12/2012
    What is oxygen sensor bank 1 sensor 2
    • Jimm
      8/12/2012 Jimm
      On a four cylinder engine there is only one bank - the O2 sensor 1 is upstream of the ctalytic converter (nearest the exhaust manifold) and the sensor 2 is downstream of the catalytic converter. The O2 sensors are not difficult to replace - be sure to spray (soak) the old O2 sensor threads liberally with thread lubricant beforehand. Try the 'How-To-Guides' feature on the AutoMD website for the specific steps to replace the O2 sensor.
      Try the many on-line auto parts sources, such as; or for the replacement parts.
      For example, they (Rock Auto) list the oxygen (O2) sensor (downstream) from around $58.00 for your vehicle.
  • dodah457
    dodah457 - 2009 Mini Cooper - Engine - 8/11/2012
    How do i fix trouble code p2270cnf
    • Jimm
      8/11/2012 Jimm
      P2270 = 02 Bank 1 Sensor 2 signal stuck lean

      faulty O2 sensor

      The most common issues for lean codes are:

      1. Vacuum leaks - check for failed or loose vacuum lines, leaking intake gaskets, intake air tubes loose or any other source of un-metered air leaks (leaks after the Mass Air Flow Sensor)
      2. Restricted fuel filter or bent/pinched fuel system lines
      3. Incorrect input from other sensors, such as the Mass Air Flow Sensor, which may not always drop a separate code
      4. Engine misfire - Yes I know this one may seem weird. You might think that if there is a misfire then you will have all that unburned fuel and it should read rich; right? Well the O2 sensors read only oxygen content in the exhaust, so if you have all that unburned fuel from incomplete combustion then, you guessed it, you also have all that unburned oxygen. High O2 content in exhaust equals a lean reading!
  • mick
    mick - 2002 Mini Cooper - Engine - 7/15/2012
    Mini one battery draining v quickly - only factory fitted alarm left on
    this is a mini one not a cooper but your website does not seem aware of this model! mileage 55000. the battery drains in a few days if the car is not used. at the last mot i asked for a check but no fault was found with the battery or the alternator.
  • Anna Light
    Anna Light - 2009 Mini Cooper - Engine - 5/15/2012
    What is the expected water pump life expectancy, and is there a standard time it should be changed
    I had my water pump go out at approx 70,000 miles should it have been changed earlier?
    • raoul_tiesto
      5/15/2012 raoul_tiesto
      I seen water pumps leaking at 10,000 miles others last 150,000 miles.There its no maintenance u do to a water pump,other than checking the drive belts and replacing coolant.Coolant should be done on a regular basis, as per the manufacturer recommendations. Check your owners manual for the maintenance schedule.Clean coolant helps minimize corrosion inside cooling system.Dirty or contaminated coolant may cause the water pump seal to fail and cause a leak.