MP4-12C - Reliability- What issues have you faced? | McLarenChat
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MP4-12C Reliability- What issues have you faced?

Discussion in 'Super Series (MP4-12C, 650S, 675LT, and 720S)' started by Booker, Feb 27, 2020.

  1. Booker

    Booker Administrator
    Staff Member Admin Global Moderator Moderator Miami 2018

    Aug 1, 2016
    174
    Dallas, Tx
    Full Name:
    Jack Booker
    So after reviewing the video below I learned that the owner of this 12C had a lot of issues, how have those of you that own the same model faired in terms of reliability? Have you had similar experiences?

    https://mclarenchat.com/forum/news/1078
     
  2. Joe Barba

    Joe Barba Rookie

    Feb 14, 2019
    1
    Northern New Jersey
    Full Name:
    Joe Barba
    So far my Iris 1 Nav is stuck in one location. Other than that its pretty damn reliable. Not sure what all the fear is about. I heard horror stories as well but so far so good. (Knock on wood). Maybe its because I drive mine fairly often (weather permitting) and also maintain it.
     
    Booker likes this.
  3. slm

    slm Rookie
    Owner

    Dec 5, 2004
    26
    Ozark Americana
    Full Name:
    Steve M
    Just had my 2020 600LT in for its yearly service. Found that the water pump was leaking/broken. Had to be replaced.
     
  4. legendrx7

    legendrx7 Rookie

    May 25, 2019
    1
    Full Name:
    Chuck duncan
    I’ve had mine for 2 years come December. I’ve put 3k reliable miles on it, 13k on the car now. Zero trips to a dealer. Did exhaust upgrades and found that the stock cats were not looking good, I was upgrading anyway so that didn’t matter to me. Did a fluid change for engine oil and transmission fluids and found that my water pump has a slight leak, will replace in the future but no rush. My passenger seat occupancy light was on for several months but has now been off for several months with no repair made. No issues other than those. I find the car to be very reliable so far.

    I had DynoSpectrum tune the ECU and it put down 650whp, it’s a complete blast to drive!
     
    Booker likes this.
  5. Booker

    Booker Administrator
    Staff Member Admin Global Moderator Moderator Miami 2018

    Aug 1, 2016
    174
    Dallas, Tx
    Full Name:
    Jack Booker
    WOW!
     
  6. Jack Syage

    Jack Syage Rookie

    Jul 23, 2020
    1
    Corona del Mar, CA
    Full Name:
    Jack Syage
    2013 12C spyder. Very reliable so far. Had for 3 years and 10,000 miles, now up to 18,000. Only issue was a hose on a turbo connection broke because of flimsy hose clamp. Doesn't disable car, just significantly reduces horses. Fixed. But then it happened again on the other side while I was tracking it. So again drove to the dealer and he fixed on the spot, but lost most of the track day. Frequently get tuner initialization error that resets after a couple of starts. Did have a water pump issue that caused overtemp and put engine in limp mode, but could move from A to B slowly with many stops to cool things down.
     

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