What are the most common Porsche Cayman problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Porsche Cayman has 1 documented issue. The documented issue is: 718 Cayman (982) Gasoline Particulate Filter (GPF/OPF) Failure. Of these, 1 is rated critical and should be addressed promptly.

Is the Porsche Cayman reliable?

The 2021 Porsche Cayman has 1 known issue compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: 718 Cayman (982) Gasoline Particulate Filter (GPF/OPF) Failure. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Porsche Cayman problems?

Repair costs for known Porsche Cayman issues range from $2,500 to $7,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, 718 Cayman (982) Gasoline Particulate Filter (GPF/OPF) Failure, typically costs $2,500-$7,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2019-2021 Porsche Cayman 718 Cayman (982) Gasoline Particulate Filter (GPF/OPF) Failure?

EU-spec 718 Caymans built from the 2019 model year onward carry a gasoline particulate filter integrated into the catalytic converter assembly. A production-era software fault plus high oil-ash loading causes the GPF to clog and fail, often with no warning light beforehand. Becau… Repairs typically run $2,500-$7,500. Severity: high.

Porsche · Known Issues

2021 Porsche Cayman Problems: 1 Issue Every Owner Should Know

2021 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated June 2026

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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 Porsche Cayman has 1 documented issue, with 1 rated critical. The most serious is 718 Cayman (982) Gasoline Particulate Filter (GPF/OPF) Failure ($2,500-$7,500 repair). Across all issues with published estimates, repair costs range from $2,500 to $7,500. DIY maintenance guides at au7o.io.

2021 Porsche Cayman Problems: 1 Issue Every Owner Should Know

All 1 Known Issue

2019-2021 Porsche Cayman: 718 Cayman (982) Gasoline Particulate Filter (GPF/OPF) Failure#

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Frequently Asked Questions

What are the most common Porsche Cayman problems?

Is the Porsche Cayman reliable?

How much does it cost to fix common Porsche Cayman problems?

What is the 2019-2021 Porsche Cayman 718 Cayman (982) Gasoline Particulate Filter (GPF/OPF) Failure?