caryle

2018 Porsche 718 Cayman maintenance schedule

The 2018 718 Cayman is part of the 982 generation (2017-2025), sold as a coupe. Below: its service intervals with the source behind each one, the fluids it takes, the problems owners report for this year, and the NHTSA recalls issued for it.

Service schedule

What the 2018 718 Cayman needs, and when

Manufacturer rows link to Porsche's own schedule, Independent rows to a service shop or parts retailer's published guide. Rows marked Unverified have no source Carlyle could confirm and are shown for completeness.

ServiceIntervalSource
Engine oil and filter

Requires Porsche A40/C40 synthetic

10,000 mi / 1 yearIndependent
Engine air filter

Accelerated in heavy dust regions

40,000 mi / 4 yearsIndependent
Cabin air filter

Replace particle/pollen filter

20,000 mi / 2 yearsIndependent
Tire rotation

Inspect tread; staggered setups limit rotation

10,000 mi / 1 yearIndependent
Brake fluid

Flush with OEM DOT 4

20,000 mi / 2 yearsIndependent
Engine coolant

Inspect lines and thermal management

40,000 mi / 4 yearsIndependent
Transmission fluid

PDK clutch fluid replacement

60,000 mi / 6 yearsIndependent
Spark plugs

30k for turbo models; 40k for NA models

30,000 mi / 3 yearsIndependent
Serpentine belt

Inspect for cracking

40,000 mi / 4 yearsUnverified
12V battery

Check condition and vent hoses

20,000 mi / 2 yearsIndependent

Intervals are for normal driving; towing, short trips, extreme heat or dust shorten them. Services we could not find an interval for are left off rather than guessed.

Fluids and engines

What goes in it

Engine oil
0W-40 / 5W-40, 8.5 qt
Coolant
G12++ / G13
Transmission fluid
75W-90 / Pentosin FFL-3

Powertrains in this generation

  • 2.0L Turbo 4-cyl (MDG), 300 hp, 6-Speed Manual / 7-Speed PDK, RWD
  • 2.5L Turbo 4-cyl (MDG), 350 hp, 6-Speed Manual / 7-Speed PDK, RWD
  • 4.0L NA 6-cyl (DPGA), 400 hp, 6-Speed Manual / 7-Speed PDK, RWD

Confirm the exact spec against the owner's manual or the label under the hood; capacities vary by engine and drivetrain.

Known problems

What 2018 718 Cayman owners run into

Problems reported for this model year, with the mileage they tend to show up at. Buying past a window is not automatically a pass - it just needs to be priced in.

Water Pump Failure

high severity

40,000-60,000 mi · $1,000-$1,800 to fix

Coolant leaks, overheating

Source: carbuzz.com

Ignition Coil Failure

medium severity

30,000-50,000 mi · $245-$297 to fix

Misfires, CEL

Source: repairpal.com

Safety recalls

2 NHTSA recalls for the 2018 Porsche 718 Cayman

From NHTSA's recall database, matched by model and year. Recall repairs are free at Porsche dealers, and a given car may already be fixed or fall outside a campaign, so check the VIN at nhtsa.gov/recalls before you buy.

Air bags

NHTSA 19V179000

March 2019

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.

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. Porsche's number for this recall is AKA4.

Structure

NHTSA 19V113000

February 2019

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. Porsche's number for this recall is AKA3.

Running costs

What maintenance typically costs

A typical year of maintenance
$1,192

Typical US independent-shop estimates for this generation; they vary by region and condition.

Other 718 Cayman model years

982 (2017-2025)

201720182019202020212022202320242025

Shopping new? The Porsche 718 Cayman guide covers the current model, with what it costs to keep for 1 to 15 years.

Sources

Researched 2026-09-21. Modeling, not mechanic advice - always confirm against your car's owner's manual and service records.

Running a 718 Cayman for income?

Carlyle scores the exact listing on cost per remaining mile and projected Turo income, so you know what a 2018 718 Cayman earns before you buy it.

Start your fleetBuying one for yourself

Free to start. No card, and we never sell your details to a dealer.