Most common 2018 Porsche 718 Cayman problems
Share of the 1 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Porsche 718 Cayman complaints by model year
Best 718 Cayman years: 2018. Compare all years →
2018 Porsche 718 Cayman recalls (2)
Air bags
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,…
Remedy: Porsche will notify owners, and dealers will tighten the air bag sensors, as necessary, free of charge. The recall began May 17, 2019. Owners may contact Porsche customer service at 1-800-767-7243.
Structure
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.
Remedy: Porsche will notify owners, and dealers will secure the crossmember with additional rivets, free of charge. The recall began April 19, 2019. Owners may contact Porsche customer service at 1-800-767-7243.
NHTSA defect investigations
Federal safety investigators have looked into a possible defect involving the 2018 Porsche 718 Cayman:
Desiccated Air Bag Inflator Rupture
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited.
Frequently asked questions
Is the 2018 Porsche 718 Cayman a good car?
Based on 1 owner complaint filed with NHTSA, the 2018 718 Cayman rates few complaints: 69% fewer complaints than a typical year of the 718 Cayman at the same age. It is one of the best 718 Cayman years by this measure. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2018 Porsche 718 Cayman?
The transmission & drivetrain — 1 complaint, 100% of all complaints for this model year. Next is the suspension (1).
How many recalls does the 2018 Porsche 718 Cayman have?
There are 2 recalls for the 2018 Porsche 718 Cayman, the most recent from March 6, 2019 (air bags). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Porsche 718 Cayman?
The best years by complaints, compared at the same age, are 2018. See the full Porsche 718 Cayman years comparison.
At what mileage do 2018 Porsche 718 Cayman problems happen?
The median mileage reported in complaints is about 25,000 miles; 100% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.