2014 MCLAREN MP4-12C SPIDER — Problems, Recalls & Safety Data

THE HEADLIGHT LENSES ON BOTH SIDES ARE GROWING A MOLD AND FOGGING. THE FOGGING IS GRADUALLY WORSENING, AND, AT SOME POINT, WILL COMPROMISE THE LIGHT EMITTED AND RESULT IN GLARE. IT IS A WELL-KNOWN ISSUE IN THESE CARS, AND SHOULD BE ADDRESSED UNDER WARRANTY, BUT MCLAREN REFUSES TO REPLACE THE LENSES FOR ANYONE WHO HAS TRIED TO GET THIS DONE BY THEIR DEALERS, MYSELF INCLUDED. IT IS CLEAR THAT THIS IS IN VIOLATION OF YOUR REGULATIONS S5.1.2 (B) AND (C): HTTPS://WWW.GPO.GOV/FDSYS/PKG/CFR-2004-TITLE49-VOL5/XML/CFR-2004-TITLE49-VOL5-SEC571-108.XML IT IS ESTIMATED THAT, OF THE 3400 MP4-12C CARS IN THE US ALONE, ABOUT 40% OF THEM HAVE THE PROBLEM. I CAN NOT VOUCH FOR THIS NUMBER, BUT ON A MCLAREN FORUM, THIS PROBLEM HAS BEEN NOTED BY MANY OWNERS AND THEIR DEALERSHIPS WERE UNABLE TO GET MCLAREN TO AUTHORIZE REPLACEMENT OR REPAIR. IT IS ALSO NOTED THAT KOENIGSEGG CARS HAD A SIMILAR PROBLEM, AND THAT NHTSA DID TAKE ACTION. PHOTOS ARE ATTACHED, BUT IT IS DIFFICULT TO SHOW HOW BAD IT REALLY IS WITH THE PHOTOS. APPROXIMATELY 30% OF THE LENS SURFACE IS INVOLVED ON THE RIGHT, AND 20% ON THE LEFT SIDE, AND IT IS PROGRESSING. THE HEADLIGHT DESIGN FAILED TO MEET THE STANDARD THAT IT WOULD NOT HAVE SUCH ISSUES WHEN EXPOSED TO THE ENVIRONMENT. MY CAR HAS HAD NO ACCIDENTS OR ANY SPECIFIC INJURY TO THE HEADLIGHTS.

ORIGINAL HEADLIGHTS DEVELOPED OPAQUE SPOTTING ON THE INTERIOR OF THE CLEAR HOUSING, WHICH IF LEFT UNCHECKED WOULD HAVE COMPROMISED THE LIGHT OUTPUT AND NIGHTTIME VISIBILITY. BOTH HEADLIGHTS WERE EVENTUALLY REPLACED UNDER WARRANTY. ONE OF THE REPLACEMENT HEADLIGHTS HAD A DEFECT IN THE OUTER LAMINATION WHICH WAS PEALING AS SOON AS IT WAS INSTALLED. BOTH INTERIOR SPOTTING/ MOLD FORMATION AND EXTERIOR DELAMINATION IS A KNOWN COMMON PROBLEM WITH MCLAREN 12C HEADLIGHTS. REPLACMENT HEADLIGHTS ARE NOT IMPROVED FROM THE ORIGINALS AND ARE PRONE TO EVENTUALLY DEVELOP SPOTTING AND OR DELAMINATION. RECENTLY MCLAREN HAS BEEN REFUSING TO REPLACE HEADLIGHTS EVEN UNDER EXTENDED WARRANTY, WHICH CAN LEAD TO A SAFETY HAZARD DUE TO COMPROMISED LIGHT OUTPUT.

THE INTERIOR OF THE HEADLIGHT ASSEMBLY ON BOTH DRIVER AND PASSENGER SIDES IS BEING OVERTAKEN WITH MOLD AND THE EXTERIOR IS PEELING/DEGRADING. THIS IS A COMMON ISSUE AFFECTING THIS MODEL THAT USED TO BE COVERED UNDER WARRANTY BUT HAS NOT BEEN COVERED IN THE LAST YEAR OR TWO. THE MOLD AND EXTERIOR PEELING ARE GETTING THE THE POINT OF ENCROACHING UPON THE LIGHT BEAM ITSELF AND IF THE RATE OF MOLD GROWTH CONTINUES, WILL CERTAINLY GET TO THE POINT OF TOTAL BLOCKAGE.