The 2022 718 Boxster S with the 2.5L turbo flat-four is relatively new, but the 982-gen platform (2017-present) shares fundamental engine architecture with earlier 991.2 911s that revealed catastrophic bore scoring issues. Early failure patterns are emerging that mirror the older MA1.21 engine problems.
Cylinder Bore Scoring / Liner Failure
Occasional · high severityTypical onset: 30,000-70,000 mi
Symptoms: Cold-start metallic rattling that disappears after warm-up, Excessive oil consumption (1 qt per 1,000 mi or more), White or blue smoke on cold starts, Loss of compression on cylinders 2 or 3 (most common), Check engine light with misfire codes P0302/P0303
Fix: Complete engine rebuild or short block replacement required. Dealerships typically go straight to factory short block. Independent shops may attempt bore honing and oversize pistons if caught early, but success rate is poor. 40-60 hours labor for short block swap including turbo removal, transmission drop, and reassembly.
Estimated cost: $18,000-28,000
Turbocharger Wastegate Rattle
Common · low severityTypical onset: 20,000-50,000 mi
Symptoms: Metallic rattling from engine bay at idle or light throttle, Rattle disappears under boost or at higher RPM, No performance loss or codes initially, Sound most pronounced when engine is fully warmed
Fix: Wastegate actuator arm bushings wear prematurely. Requires turbocharger removal and wastegate assembly replacement or rebuild. Some owners live with it; others replace turbos under extended warranty. 8-12 hours labor per turbo, often both sides done simultaneously.
Estimated cost: $3,500-6,000
Intermediate Shaft (IMS) Bearing Confusion
Rare · low severitySymptoms: Customer anxiety from internet research, Confusion about whether 718 has IMS bearing issue
Fix: NOT A REAL PROBLEM on 718 models. The MA1.21/MA2.0 turbo four uses timing chains, not the intermediate shaft design of older water-cooled flat-sixes. This is purely a knowledge issue—educate customers that IMS concerns don't apply here. Zero labor, zero cost.
Transmission Oil Cooler Leaks
Occasional · medium severityTypical onset: 40,000-80,000 mi
Symptoms: Transmission fluid spots under vehicle (reddish, thinner than engine oil), Burnt transmission fluid smell after hard driving, Fluid level low on dipstick check, Harsh shifting when transmission is cold
Fix: Oil cooler line connections at transmission case develop seepage, or cooler itself cracks from road debris. Requires transmission drop on PDK models for proper access to cooler and lines. Manual transmissions slightly easier but still 6-8 hours. Replace cooler and all sealing surfaces.
Estimated cost: $1,800-3,200
Fuel Filter Clogging (Premium Fuel Markets)
Occasional · medium severityTypical onset: 50,000-90,000 mi
Symptoms: Hesitation under full throttle acceleration, Limp mode activation during hard pulls, Fuel pressure codes P0087 (fuel rail pressure too low), Stumbling at highway speeds under moderate load
Fix: In-tank fuel filter clogs earlier than expected, particularly in regions with ethanol-blend fuels or contaminated station tanks. Requires fuel tank drop and pump module R&R. Filter is integrated into pump assembly on most model years—replace entire pump. 4-5 hours labor.
Estimated cost: $1,200-1,800
Engine Mount / Transmission Mount Fatigue
Common · low severityTypical onset: 60,000-100,000 mi
Symptoms: Excessive drivetrain movement felt through shifter or steering wheel, Clunking when engaging drive or reverse, Vibration at idle that wasn't present when new, Visible cracking or oil saturation of rubber mount material
Fix: Mid-engine layout puts significant stress on mounts, especially rear transmission mount. Hydraulic engine mounts lose damping fluid. Replace all four mounts as a set for balanced results. 3-4 hours labor with proper lift access.
Estimated cost: $1,400-2,200
Beautiful driving experience but the turbo flat-four is a ticking time bomb—only buy with comprehensive warranty or cash reserves for a $25K engine job.
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.