Problems owners report
Complaints filed with NHTSA about the 2021 Porsche 718 Cayman, by the system named in each complaint. One complaint can name several.
- Engine2
NHTSA ODI complaints (public domain) · updated 23 Oct 2026 · 0 injuries and 0 deaths reported
Compared with other years
NHTSA ODI complaints by model year
New York safety inspections
At its first New York inspection the 2021 Porsche 718 Cayman failed the safety check 0.24% of the time — 74% less often than the average 2021 passenger car (0.95%). Median odometer at inspection: 7,316 miles.
NY DMV Vehicle Inspections (vezn-fmmk), initial inspections since Aug 2021 · how we count
Registered new in Europe in 2021
427 new Porsche 718 Cayman cars were registered in the EU, Norway and Iceland in 2021; the largest markets were Germany (194), Italy (87), Belgium (31).
- Average mass
- 1,439 kg
- Average CO₂
- 203 g/km (WLTP)
- Average power
- 220 kW
- Fuel type recorded
- Petrol 100%
European Environment Agency, CO₂ emissions from new passenger cars · averages weighted by registrations; CO₂ is the type-approval value; fuel type as recorded at registration, where many non-plug-in hybrids appear as petrol · re-use permitted with acknowledgement
Real-world fuel consumption
108 Porsche 718 Cayman cars first registered in Europe in 2021 report their fuel use through the on-board meter. Petrol versions use 10.2 l/100 km on the road against 9.0 in the WLTP test (+14%).
| Fuel | Cars | On the road | WLTP | Difference |
|---|---|---|---|---|
| Petrol | 108 | 10.2 | 9.0 | +14% |
Litres per 100 km from the cars' own fuel meters (OBFCM), collected in 2024; the year is the year of first registration. All years together · European Environment Agency · CC BY 4.0
In the Netherlands
35 first registered in 2021 are on Dutch roads; 51% arrived later as imports. Median list price when new: €146,101.
Most common APK defects
- Band onvoldoende profiel5
- Band(en) aanwezig met een profieldiepte van 1,6 t/m 2,5 mm3
- Mechanische delen van het remsysteem vertonen slijtage1
- Band beschadigd1
- Ruitensproeierinstallatie werkt niet goed1
Colours
RDW Open Data: registered vehicles and APK defects (CC0) · defect descriptions in the RDW's Dutch wording
Fuel consumption
Official Canadian test results for 4 variants: combined 10.0–10.5 L/100 km (about 22–24 mpg US), CO₂ 233–245 g/km.
| Variant | City | Highway | Combined |
|---|---|---|---|
| 718 Cayman · Two-seater · Premium gasoline | 11.0 | 8.7 | 10.0 |
| 718 Cayman T · Two-seater · Premium gasoline | 11.2 | 8.7 | 10.1 |
| 718 Cayman · Two-seater · Premium gasoline | 11.7 | 8.9 | 10.5 |
| 718 Cayman T · Two-seater · Premium gasoline | 11.7 | 8.9 | 10.5 |
Litres per 100 km. Natural Resources Canada, Fuel consumption ratings (open.canada.ca) · Open Government Licence – Canada
Recalls
No recall campaigns cover the 2021 Porsche 718 Cayman.
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What Porsche told its dealers about the 2021 Porsche 718 Cayman: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 11011676 | Manufacturers certificate for approved wheels and tires on the 982. |
| 11011666 | Parts information with parts withdrawal involving the hydro-mounting - 992199384F The affected vehicles are cars that use the part number mentioned. |
| 11011657 | Technical information for a Complaint - Check Engine Error Message in Conjunction with Loss of Power or a Creaking Noise after Switching off the Engine. Includes MY17-21 Cayman, Cayman , Cayman GTS, and Cayman T |
| 11011572 | Parts information for parts withdrawal involving the oil separator. The affected vehicles are cars that use part number 0PC115099A |
| 11011570 | Special tools and equipment information for the WiScope UV upgrade - affecting all Porsche models |
| 11011563 | Information on PIWIS tester update 43.000.020 & .021. PIWIS tester updates applies to all Porsche models that have an OBD2 port. |
| 11011561 | Information on PIWIS tester update 43.000.017. PIWIS tester updates applies to all Porsche models that have an OBD2 port. |
| 11011552 | Parts information for parts withdrawal involving the camera and control unit with the camera - PAD980551 & PAD980568C. The affected vehicles are cars that use the part numbers mentioned. |
| 11011200 | Information on PIWIS tester update 43.000.016. PIWIS tester updates applies to all Porsche models with an OBD2 port. |
| 11011195 | Information on PIWIS tester update 43.000.010, .011 & .015. PIWIS tester updates applies to all Porsche models with an OBD2 port. |
| 11011184 | Instructions on advanced technical information for a squeak and or rattle from the dash or instrument cluster area on the Boxsters, Caymans, and 911s. |
| 11009877 | Information on PIWIS tester update 42.950.048 |
| 11009862 | Special tools and equipment information for the mobile data signal strength in the workshop |
| 11008672 | Manufacturers certificate with an overview on approved Porsche C30 engine oils. See attached for list of affected vehicles. |
| 11008669 | Manufacturers certificate with an overview on approved Porsche C20 engine oils. See attached for list of affected vehicles. |
| 11008658 | Parts information for parts withdrawal involving the windscreen. Vehicles affected are cars that use part numbers 992845011Q, 992845011AN, 992845011S, 992845011AM, 992845011BL, 992845011DB, 992845047DY, 992845047FY |
| 11008657 | Information on PIWIS tester update 42.950.040. PIWIS tester updates applies to all Porsche models that have an OBD2 port. |
| 11008637 | Information on PIWIS tester update 42.950.032. PIWIS tester updates applies to all Porsche models that have an OBD2 port. |
| 11008636 | Information on PIWIS tester update 42.950.030. PIWIS tester updates applies to all Porsche models that have an OBD2 port. |
| 11008635 | Parts information for parts withdrawal involving the booster - 7PP035223M, 7PP035223AA, 99164548000. Vehicles affected are cars that use the part numbers listed. |
| 11008624 | Information on PIWIS tester update 42.950.025 |
| 11008603 | Parts information for parts withdrawal involving the windscreen. The cars involved are cars that use the part numbers 992845011Q, 992845011AN, 992845011S, 992845011AM, 992845011BL, 992845011DB, 992845047DY, 992845047FY |
| 11008486 | Information on PIWIS tester update 42.950.021 |
| 11008479 | Parts information for parts withdrawal involving the chain tensioner - 0PB109507D |
| 11008476 | Information on PIWIS tester update 42.950.020 |
NHTSA manufacturer communications (public domain)