Porsche 718 (982) — Complete Guide: History, Engines, Maintenance & Provenance

1. History & Generations

The Boxster/Cayman lineage runs across four generations before “718” was even a badge, then continues as the 982:

• 718 (2016–2019)

  Launched with 2.0L (base, ~300 hp) and 2.5L turbo flat-four (S, ~350 hp) engines, codenamed MA2.20/MA2.21. The naturally aspirated GT4 and Spyder used a 3.8L flat-six here initially in some markets before the 4.0L arrived.

• 718.2 facelift (2019/2020–2025)

  Revised engines (MA2.22), a new GTS 4.0 with the 4.0L naturally aspirated flat-six (395 hp), and the reintroduction of six-cylinder power across the GT4, Spyder, GT4 RS, and Spyder RS — the last of which was the final gasoline-powered 718 variant produced, using a 493 hp 4.0L flat-six derived from the 911 GT3.

2. Engine Lineup — What’s Actually Under the Engine Cover

3. Common Owner-Reported Themes

Diagnostic advice — themes, patterns, and documentation to keep for your maintenance record. Always verify with your specialist or dealer, for your exact engine and model year.

• Water pump & cooling system

  The single most frequently reported maintenance item across the 982 range. The water pump sits low in the engine bay behind the exhaust system, making replacement labour-intensive (dealer quotes commonly run into four figures largely due to labour, not parts — indicative only). Bearing wear, impeller degradation, and coolant switching-valve faults are the recurring failure pattern; many owners proactively replace the pump in the 30,000–40,000 mile range rather than wait for failure. Related coolant-pipe joints (rubber-to-plastic-to-metal, running from the front radiators to the engine) are a separate, known leak point — worth a specific check during a pre-purchase inspection (PPI).

• PDK & manual clutch

  The PDK dual-clutch transmission itself is considered extremely reliable in the 982, per specialist buyer’s guides — most reported “transmission” complaints trace back to old/degraded PDK fluid causing rough or delayed shifts, which is a service item, not a design flaw. On manual cars, clutch life varies enormously by driver — anywhere from ~15,000 miles to well over 100,000 miles — so service history matters far more than mileage alone. A slipping clutch left unaddressed can damage the flywheel, and replacing both together is standard practice once a clutch job is needed.

• Bore scoring — not a 718 issue

  This is worth stating plainly because it’s a common point of confusion: cylinder bore scoring is a well-documented problem on older water-cooled Porsche engines (M96/M97, used in 1997–2008 Boxster/Cayman/911, and the 987-generation 3.4L). The 718’s engines (MA2.x flat-four and the 9A2-derived flat-six) use a different cylinder coating technology (SUMEbore), introduced specifically to address this failure mode, and are not considered part of the bore-scoring risk population. The 982 also doesn’t carry the older IMS (intermediate shaft) bearing risk. A PPI is still worthwhile — for over-rev history, general wear, and the cooling/clutch items above — but bore scoring shouldn’t be treated as a 718-specific worry the way it is for pre-2009 models.

• Interior wear items

  Saggy headliners and door-card trim separation — issues inherited from earlier Cayman/Boxster generations — are still occasionally reported on the 982, though less commonly than on older cars.

4. Reliability Snapshot

• J.D. Power has rated the 718 range “Great” for reliability in most surveyed years.
• TrueDelta owner-reported data (all Cayman generations combined) lists the water pump, air-oil separator (AOS), TPMS sensors, and clutch components as the most frequently flagged repair items — consistent with the pattern above.
• The platform does not suffer the catastrophic, well-known failure modes (IMS bearing, bore scoring, block casting defects) that affect earlier water-cooled Porsche sports cars.
• A pre-purchase inspection (PPI) by a Porsche-experienced technician remains strongly recommended for any used 718 — not because the platform is fragile, but because it can catch things a warranty won’t, such as evidence of a prior over-rev.

5. Pros

• ✓Chassis and handling — near-universal praise across the automotive press; the mid-engine 718 is frequently rated among the sharpest-handling sports cars available at any price, often argued to be more engaging than the 911 on the same road.
• ✓GTS 4.0 / GT4 / Spyder flat-six variants — some of the last naturally aspirated Porsche engines ever built; reviewers describe the 4.0L flat-six as mechanical, revvy, and genuinely special in a way turbocharged rivals can’t match.
• ✓Real-world turbo torque (base/S models) — the much-criticized flat-fours are, in practice, effective and quick, with more usable mid-range than the sixes they replaced.
• ✓PDK reliability — a genuine strength of the platform once fluid service is kept current.
• ✓Strong CPO program — Porsche’s Certified Pre-Owned warranty is considered one of the best in the industry, an important consideration for used buyers.
• ✓No legacy catastrophic failure modes — freedom from IMS and bore-scoring risk versus older M96/M97-engined Porsches is a genuine reliability advantage, not just marketing.

6. Cons

• ✗Flat-four soundtrack (2016–2019 base/S/GTS 2.5T) — the most consistent criticism in period reviews; some buyers specifically hold out for GTS 4.0 or GT-badged flat-six cars for this reason, which affects used pricing and availability.
• ✗Water pump / cooling system as a recurring, labour-heavy repair — not catastrophic, but a real and recurring cost line, especially on cars nearing or past the 30,000–40,000 mile mark without a pre-emptive pump replacement.
• ✗Clutch life unpredictable on manuals — wide variance by driving style makes it hard to budget for as a simple mileage-based service item.
• ✗Limited practicality — two seats, modest storage (frunk + rear trunk on Cayman), not a car for those who need rear seats or a large boot.
• ✗Combustion-engine production has ended — as of 2025, no new gasoline 718 is being built, which affects long-term parts and dealer-support planning versus the “living model” status of other Porsche lines.
• ✗PPI is still worthwhile despite the strong reliability record — over-rev history and cooling-system condition aren’t always visible without one.

7. Further Reading — Independent Reviews

Independent press and manufacturer references for deeper reading:

• Porsche 718 Cayman GTS 4.0 review — evo — “a near-perfect mid-engined sports car”
• Porsche 718 GTS 4.0 review — Top Gear — the six-cylinder GTS driven
• Porsche 718 Cayman GT4 RS review — evo — track-focused flagship tested against the evo leaderboard
• Porsche 718 Cayman GTS 4.0 review — CarThrottle — “more fun than a GT4?”
• Porsche 718 Cayman GT4 RS — official Porsche specs

Own a Porsche 718? Protect its resale value

Add it to The Owners Club for free to track its maintenance history, import UK MOT history, and transfer verified provenance when you sell.

• Verified maintenance timeline with dealer and specialist invoices
• UK MOT import (DVSA)
• Water pump, PDK fluid, clutch and cooling component tracking
• Verified Transfer Pack PDF for sale

Sources & disclaimer