Home · 2016 Porsche Cayman Gts · Complaints
What 7 owners told NHTSA about the 2016 Porsche Cayman Gts
These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.
1 of 7 complaints match · Engine · clear filters
Nov 17, 2020Engine
THE VARIABLE VALVE TIMING ADJUSTER SPROCKET BOLTS HAVE A TENDENCY TO SHEAR UNDER HIGH LOAD. THIS IS A DOCUMENTED ISSUE THAT WAS ALSO COMMON IN SEVERAL OTHER PORSCHE MODELS OF SIMILAR PRODUCTION YEAR RANGES. THE VALVETRAIN LOSES TIMING, RESULTING IN A CATASTROPHIC ENGINE FAILURE WHICH DISABLES A VEHICLE. MY VEHICLE SUSTAINED SUCH A FAILURE AND THE CAR IMMEDIATELY WENT INTO "LIMP MODE." ALL THE VALVES ON ONE CYLINDER BANK WERE BENT. OTHER MODELS WERE RECALLED BUT THE CAYMAN AND BOXSTERS THAT CAME WITH THE 9A1 ENGINE WERE NOT. PORSCHE REPAIRED MY ENGINE BUT THEY PUT THE SAME PART NUMBER THAT FAILED BACK INTO THE CAR. THERE HAS NOT BEEN AN ENGINEERING REVISION TO THE PART, AND ANOTHER FAILURE IS POSSIBLE.
NHTSA ODI 11375115
Working with the data? Download all 7 complaints as CSV · fetched from NHTSA July 27, 2026
How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your
pre-purchase inspection list. Back to the
full 2016 Porsche Cayman Gts verdict →