Reliability AnalysisBased on known issue patterns, repair cost data, and ownership trends · How we score

2017 Porsche Cayman Reliability ReportCommon Problems, Repair Costs & Expert Verdict

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88/ 100

AutoScore

LOW RISK

Grade: A-

A high-performance machine with excellent fundamental reliability, provided you're prepared for its premium running costs and new engine's quirks.

Full system breakdown + what I would do

Quick Facts · 2017 Porsche Cayman

  • No active NHTSA safety recalls on record — a clean recall slate for the 2017 model year.
  • Scores roughly in line with adjacent Porsche Cayman years — consistency that often signals a stable platform generation.
  • The system most likely to surface first: engine (turbocharged flat-4) (moderate severity).
Quick Answers

The 2017 Porsche Cayman at a glance

Is the 2017 Porsche Cayman reliable?
Autojunket rates the 2017 Porsche Cayman 88/100 (grade A-), categorized as low risk. A high-performance machine with excellent fundamental reliability, provided you're prepared for its premium running costs and new engine's quirks.
Should I buy a used 2017 Porsche Cayman?
Autojunket recommends reading the full reliability report before buying a 2017 Porsche Cayman. The 2017 Porsche Cayman (718 generation) represents an excellent value in the used sports car market. While the new turbocharged engines introduced a different character, the fundamental Porsche engineering and build quality remain outstanding, promising a reliable and intensely rewarding ownership experience. Appro…
Which Porsche Cayman years are the most reliable?
Best model years to buy: 2017-Present (718 generation), also consider 2014-2016 (981 generation) for naturally aspirated flat-six engines.. Years to avoid: None specifically for reliability, but 2017-2019 718 models are the earliest iteration of the new engines..
What are the most common problems with the 2017 Porsche Cayman?
The top failure points on the 2017 Porsche Cayman are Engine (Turbocharged Flat-4) (typically around 20,000-60,000 miles), Electrical/Infotainment (typically around 15,000-45,000 miles), Suspension & Bushings (typically around 50,000-90,000 miles). Autojunket's full report includes repair-cost ranges and inspection checklists for each.
At what mileage do problems start on the 2017 Porsche Cayman?
The first major mileage danger zone for the 2017 Porsche Cayman is around 30,000. Low Risk Zone — At this mileage, the car is still relatively new. Key items to watch for are early signs of brake/tire wear if driven hard, and ensuring all software updates for the infotainment system have been applied. Oil consumption should be monito…

Every answer is generated from real repair, recall, and ownership data — full breakdown in the report.

Read the full free report

Should You Buy the 2017 Porsche Cayman?

The 2017 Porsche Cayman, marking the 718 generation's debut, is a remarkably well-built and fundamentally reliable sports car, a smart acquisition for discerning enthusiasts. While its new turbocharged flat-four engines introduced different characteristics, the core Porsche engineering ensures a dependable and exhilarating ownership experience. Prepare for premium maintenance costs, but expect robust performance and excellent longevity from this driver's machine.

The 2017 Porsche Cayman (718 generation) represents an excellent value in the used sports car market. While the new turbocharged engines introduced a different character, the fundamental Porsche engineering and build quality remain outstanding, promising a reliable and intensely rewarding ownership experience. Appro…

Best Model Years

2017-Present (718 generation), also consider 2014-2016 (981 generation) for naturally aspirated flat-six engines.

Years to Avoid

None specifically for reliability, but 2017-2019 718 models are the earliest iteration of the new engines.

Biggest Strengths

  • Exceptional build quality and engineering integrity
  • Robust PDK transmission performance and reliability
  • Durable chassis and suspension components

Top Risk Areas

The systems that tend to fail first on the 2017 Porsche Cayman, with the typical mileage window when each becomes a concern. Detailed repair-cost ranges and exact what-to-check inspection notes are in the full report.

1
Engine (Turbocharged Flat-4)moderate~20,000-60,000 mi

The new 2.0L and 2.5L turbocharged flat-four engines, while powerful, have been noted by some owners for increased oil consumption compared to previous naturally aspirated units. This is often within acceptable factory limits but require…

2
Electrical/Infotainmentminor~15,000-45,000 mi

Modern Porsches, including the 718 Cayman, can experience occasional software glitches with the Porsche Communication Management (PCM) system, leading to connectivity issues or freezing. Minor sensor failures (e.g., parking sensors, tire…

3
Suspension & Bushingsmoderate~50,000-90,000 mi

While the suspension is incredibly capable, aggressive driving or high mileage can lead to premature wear of control arm bushings or ball joints, particularly in the front. Isolated instances of PASM (Porsche Active Suspension Management…

Full repair-cost ranges, fix-before-you-buy notes, and inspection checklists are in the report.

2017 Porsche Cayman Mileage Danger Zones

The mileage windows when the 2017 Porsche Cayman most commonly needs attention. Plan ahead, budget accordingly, and inspect before you cross each threshold.

30,000

Low Risk Zone

At this mileage, the car is still relatively new. Key items to watch for are early signs of brake/tire wear if driven hard, and ensuring all software updates for the infotainment system have been applied. Oil consumption should be monito…

60,000

Maintenance Zone

This mileage typically triggers the 'major' service interval (4-year/60k for many items, depending on in-service date). Spark plugs, air filters, and potentially PDK fluid service will be due, representing a significant cost.

90,000

Elevated Risk Zone

Beyond 90k, wear on more significant components can become apparent. Suspension components (bushings, dampers), engine ancillaries (belts, pulleys, sensors), and potential for leaks (oil, coolant) should be thoroughly inspected.

120,000+

High Risk Zone

While many Caymans can reach this mileage with proper care, it's where the cumulative effects of age and wear become more pronounced. Comprehensive pre-purchase inspections are critical, and budgeting for potentially larger repairs is wi…

2017 Porsche Cayman Ownership Cost Outlook

What it typically costs to keep the 2017 Porsche Cayman on the road. Full 5-year cost-of-ownership projection and major-failure-risk forecast are in the report.

Annual Maintenance

$600-1,200

Moderate Repairs

$1,000-3,000 occasionally

How Long Does the 2017 Porsche Cayman Last?

Don't fear higher mileage Caymans if they come with a complete and meticulous service history. Porsche cars are built to be driven, but consistent, expert-level maintenance is paramount to their longevity and reliability.

What 2017 Porsche Cayman Owners Actually Say

What Owners Love

  • Exceptional driving dynamics and chassis balance, making every drive thrilling.
  • Premium interior quality and comfortable ergonomics for a sports car.
  • Impressive build quality that feels solid and durable.
  • More practical than many rivals with two usable trunks (frunk and rear hatch).

Common Frustrations

  • The sound of the turbocharged flat-four engine is polarizing; many miss the flat-six's character.
  • Higher running costs including maintenance, tires, and insurance are a given.
  • The ride can be firm, especially with PASM or larger wheels, which may bother some.
  • Infotainment system (PCM) can be occasionally quirky or slow to respond.

Who Should Buy the 2017 Porsche Cayman?

Best For

  • Driving enthusiasts seeking a pure, engaging sports car experience.
  • Individuals who appreciate top-tier German engineering and build quality.
  • Those who can afford premium maintenance and repair costs.

Not Ideal For

  • Budget-conscious buyers looking for low running costs.
  • Those who prioritize absolute engine sound purity (compared to the prior flat-six).

How the 2017 Porsche Cayman Compares to Rivals

The 718 Cayman offers a more engaging and purist sports car experience than most direct competitors, often at the expense of practicality and potentially higher running costs, but with superior build quality.

More Reliable Than

  • Alfa Romeo 4C (for daily usability and overall build quality)
  • Mercedes-AMG SLC 43 (for driving dynamics and chassis purity)

Comparable To

  • Audi TTS (for performance and technology blend)
  • BMW M240i (for spirited driving and premium feel)

NHTSA Recalls

No active NHTSA safety recalls on file for the 2017 Porsche Cayman. Always verify with your VIN atnhtsa.gov.

What breaks on the 2017 Porsche Cayman?

Full reliability breakdown — engine, transmission, rust, electrical. With repair costs and mileage danger zones.

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Porsche Cayman by Year

Compare AutoScores across nearby years of the Porsche Cayman. Click any year for its full report.

If You're Considering This, Also Look At

Similar class, similar year range — ranked by AutoScore.

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Autojunket vs. the rest

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2017 Porsche Cayman

7-system breakdown, mileage danger zones, repair cost projections, buyer checklist, and expert verdict.

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