Problems owners report
Complaints filed with NHTSA about the 2018 Porsche 718 Cayman, by the system named in each complaint. One complaint can name several.
- Suspension1
- Power train1
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 2018 Porsche 718 Cayman failed the safety check 0.14% of the time — 92% less often than the average 2018 passenger car (1.65%). Median odometer at inspection: 24,543 miles.
NY DMV Vehicle Inspections (vezn-fmmk), initial inspections since Aug 2021 · how we count
Registered new in Europe in 2018
1,414 new Porsche 718 Cayman cars were registered in the EU, Norway and Iceland in 2018; the largest markets were Germany (621), Italy (246), France (153).
- Average mass
- 1,436 kg
- Average CO₂
- 195 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
In the Netherlands
68 first registered in 2018 are on Dutch roads; 53% arrived later as imports. Median list price when new: €92,382.
Most common APK defects
- Bandenspanning niet op juiste waarde15
- Band onvoldoende profiel11
- Dimlicht onjuist afgesteld6
- Band(en) aanwezig met een profieldiepte van 1,6 t/m 2,5 mm5
- Koplamp met afwijkend lichtbeeld onjuist afgesteld2
- Ruitenwisserinstallatie geeft onvoldoende zicht1
- Afgedekt onderdeel niet beoordeeld 5.1b.31
- Mistachterlicht asymmetrische plaatsing t.o.v. midden1
Colours
RDW Open Data: registered vehicles and APK defects (CC0) · defect descriptions in the RDW's Dutch wording
In Finland
7 of these cars first registered in 2018 were in use in Finland on 30 Jun 2026, with an average of 45,000 km on the odometer at their last inspection.
Traficom (Finnish Transport and Communications Agency), open data on vehicles in use · CC BY 4.0
Crash-test ratings
NHTSA 5-star results for 1 variant; not yet fully rated. Rollover risk is the estimated chance of rolling over in a single-vehicle crash.
| Variant | Overall | Rollover risk |
|---|---|---|
| 2018 Porsche 718 Cayman 3 HB RWD | — | 0.0 % |
- Electronic stability control
- Standard
- Forward collision warning
- No
- Lane departure warning
- No
- Best overall rating
- —
NHTSA New Car Assessment Program (5-Star Safety Ratings), api.nhtsa.gov · US federal work, public domain
Recalls in Canada
2 Transport Canada recalls for the 2018 Porsche 718 Cayman.
| 2019114 6 Mar 2019 | Airbag Issue: On certain vehicles, the airbag sensors may not be properly attached to the chassis. This could cause the airbag system not work as designed in a crash… |
| 2019080 22 Feb 2019 | Fuel System Issue: On certain vehicles, the fuel tank could be punctured in a crash. Safety Risk: Leaking fuel, in the presence of an ignition source, creates the … |
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada
Recalls
Porsche Cars North America, Inc. (Porsche) is recalling certain 2018 718 Boxster, Boxster S and Boxster GTS, 718 Cayman, Cayman S and Cayman GTS, 911 Carrera, Carrera T, Targa 4 GTS, Carrera 4, Carrera S, Carrera 4S, Carrera GTS, Carrera 4 GTS, Carrera Cabriolet, Carrera S Cabriolet, Carrera 4S Cabriolet, Carrera GTS Cabriolet, Carrera 4 GTS Cabriolet, Targa 4, Targa 4S, Turbo, Turbo S, Turbo S Exclusive Series, Turbo Cabriolet, Turbo S Cabriolet and GT3 vehicles. The side air bag impact sensors may not have been properly tightened to the vehicle.
Porsche Cars North America, Inc. (Porsche) is recalling certain 2017-2019 718 Boxster, 718 Boxster S, 718 Cayman and 718 Cayman S vehicles and 2018-2019 718 Boxster GTS and 2018-2019 718 Cayman GTS vehicles. In the event of a crash, a crossmember may detach from the luggage compartment bracket, possibly causing a fuel leak.
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 2018 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 |
| 11008666 | Manufacturers certificate with an overview on approved Porsche A40 engine oils. See attached for list of affected vehicles. |
| 11008662 | Manufacturers certificate with an overview on approved Porsche C40 engine oils. See attached for list of affected vehicles. |
| 11008661 | Manufacturers certificate with an overview on approved Porsche C30 engine oils. See attached for list of affected vehicles. All MY04-20 |
| 11008660 | 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 |
NHTSA manufacturer communications (public domain)
NHTSA investigations
Desiccated Air Bag Inflator Rupture
NHTSA Office of Defects Investigation