The 2019 718 Cayman is a mid-engine sports car plagued by catastrophic engine failures in the 2.0L turbo-four, while the 2.5L/2.7L flat-six versions are far more reliable. The four-cylinder engines suffer from severe bore scoring and cylinder liner failures, often requiring complete rebuilds at surprisingly low mileage.
2.0L Turbo Four Catastrophic Engine Failure (Bore Scoring/Cylinder Liner Cracking)
Common · high severityTypical onset: 30,000-70,000 mi
Symptoms: Excessive oil consumption (quart per 500-1000 miles), Cylinder misfires with P030X codes, White or blue exhaust smoke on cold start, Metallic rattling from engine bay, Loss of compression in one or more cylinders
Fix: Complete engine rebuild or short block replacement required. Porsche extended warranty coverage on some VINs, but many fall outside. 40-60 hours labor for engine removal, disassembly, machining, new pistons/rings/bearings, reassembly. Some cases need complete crate engine.
Estimated cost: $15,000-28,000
Dual-Clutch Transmission (PDK) Oil Cooler Failure
Occasional · medium severityTypical onset: 40,000-80,000 mi
Symptoms: Transmission fluid leaking from bellhousing area, PDK overheating warnings on dash, Harsh shifts or delayed engagement when hot, Burnt transmission fluid smell
Fix: PDK oil cooler develops internal leaks or external seepage. Requires transmission removal to access cooler assembly. 12-16 hours labor including fluid refill and adaptation procedures.
Estimated cost: $3,500-5,500
Transmission Mount Failure (Rear/Gearbox Mount)
Common · low severityTypical onset: 50,000-90,000 mi
Symptoms: Excessive drivetrain clunk on throttle lift or engagement, Vibration through cabin at idle, Visible tearing or separation of rubber mount, Grinding or knocking from transmission tunnel
Fix: Rear transmission mount separates or tears due to mid-engine weight and performance driving. Requires lift access and exhaust work for clearance. 3-5 hours labor with alignment check.
Estimated cost: $800-1,400
High-Pressure Fuel Filter Clogging (2.0L Turbo)
Occasional · medium severityTypical onset: 40,000-70,000 mi
Symptoms: Rough idle and hesitation under load, Check engine light with fuel pressure codes (P0087, P0191), Extended cranking before start, Intermittent limp mode
Fix: High-pressure fuel filter in tank or inline system clogs prematurely on turbo-four engines, possibly related to fuel system contamination from failing injectors. Filter replacement plus system flush. 2-4 hours depending on location.
Estimated cost: $600-1,200
Head Gasket Weeping (2.7L Flat-Six)
Rare · medium severityTypical onset: 60,000-100,000 mi
Symptoms: Minor oil seepage at cylinder head mating surface, Slight coolant smell from engine bay, Gradual coolant loss without visible external leaks, No overheating but low coolant warnings
Fix: Flat-six head gaskets can develop minor seepage, not as catastrophic as four-cylinder issues. Both heads should be done simultaneously. 18-24 hours labor due to mid-engine packaging and cooling system complexity.
Estimated cost: $5,000-7,500
Connecting Rod Bearing Wear (Track-Driven Cars)
Rare · high severitySymptoms: Knocking noise that increases with RPM, Metal shavings in oil during analysis, Low oil pressure warning at idle when hot, Sudden catastrophic failure if ignored
Fix: Track-driven cars with sustained high RPM can experience accelerated rod bearing wear, especially if oil changes are stretched. Requires complete lower-end teardown. 35-50 hours for crank removal, bearing replacement, clearance checks, reassembly.
Estimated cost: $12,000-18,000
Buy a flat-six 718 Cayman S/GTS without hesitation; run screaming from the 2.0L turbo-four base model unless you enjoy five-figure engine bills.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.