2021 Porsche 718 Cayman maintenance schedule
The 2021 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 2021 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.
| Service | Interval | Source |
|---|---|---|
| Engine oil and filter Requires Porsche A40/C40 synthetic | 10,000 mi / 1 year | Independent |
| Engine air filter Accelerated in heavy dust regions | 40,000 mi / 4 years | Independent |
| Cabin air filter Replace particle/pollen filter | 20,000 mi / 2 years | Independent |
| Tire rotation Inspect tread; staggered setups limit rotation | 10,000 mi / 1 year | Independent |
| Brake fluid Flush with OEM DOT 4 | 20,000 mi / 2 years | Independent |
| Engine coolant Inspect lines and thermal management | 40,000 mi / 4 years | Independent |
| Transmission fluid PDK clutch fluid replacement | 60,000 mi / 6 years | Independent |
| Spark plugs 30k for turbo models; 40k for NA models | 30,000 mi / 3 years | Independent |
| Serpentine belt Inspect for cracking | 40,000 mi / 4 years | Unverified |
| 12V battery Check condition and vent hoses | 20,000 mi / 2 years | Independent |
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 2021 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.
Ignition Coil Failure
medium severity30,000-50,000 mi · $245-$297 to fix
Misfires, CEL
Source: repairpal.com
Safety recalls
No NHTSA recalls matched the 2021 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.
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
Shopping new? The Porsche 718 Cayman guide covers the current model, with what it costs to keep for 1 to 15 years.
Sources
- jxlperformance.co.uk (Independent)
- pcarwise.com (Independent)
- repairpal.com (Independent)
- westlake.porsche.com (Independent)
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 2021 718 Cayman earns before you buy it.
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