2018 Porsche Cayman Problems: 1 Known Issue
2018 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2018 Porsche Cayman has 1 documented issue, with 1 rated critical. The most serious is 718 Cayman (982) Early Turbo-Four High Oil Consumption ($500-$8,000 repair). Across all issues with published estimates, repair costs range from $500 to $8,000. DIY maintenance guides at au7o.io.
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Frequently Asked Questions
What are the most common Porsche Cayman problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2018 Porsche Cayman has 1 documented issue. The documented issue is: 718 Cayman (982) Early Turbo-Four High Oil Consumption. Of these, 1 is rated critical and should be addressed promptly.
Is the Porsche Cayman reliable?
The 2018 Porsche Cayman has 1 known issue compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: 718 Cayman (982) Early Turbo-Four High Oil Consumption. 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 $500 to $8,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, 718 Cayman (982) Early Turbo-Four High Oil Consumption, typically costs $500-$8,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2017-2020 Porsche Cayman 718 Cayman (982) Early Turbo-Four High Oil Consumption?
A number of early 2.0L and 2.5L turbocharged flat-four 718 engines consume oil at a high rate — owners report roughly a quart per 1,000 miles, with the worst cases needing engine replacement under warranty. Some 2019 2.0L cars also suffered oil-separator (PCV) diaphragm failures… Repairs typically run $500-$8,000. Severity: high.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.