Porsche Cayman, 981 (EU)

Coolant capacity & service interval

Porsche Cayman, 981 (EU) models require coolant with a capacity range of 23 to 25 liters. Service intervals occur every 24 months or 30000 km. The data covers 4 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
Cayman GT4 (2015-2016)
  • Use: Normal
  • Capacity 25 liter
  • Check 24 months/ 30000 km
Cayman (2013-2016)
  • Use: Normal
  • Capacity 23 liter
  • Check 24 months/ 30000 km
Cayman GTS (2013-2016)
  • Use: Normal
  • Capacity 23 liter
  • Check 24 months/ 30000 km
Cayman S (2013-2016)
  • Use: Normal
  • Capacity 23 liter
  • Check 24 months/ 30000 km

Additional Notes

  • The Porsche Cayman 981 (EU) cooling system holds 23 liters across the Cayman, Cayman GTS, and Cayman S variants for model years 2013-2016, reflecting a substantial total system volume consistent with a full cooling circuit that includes the engine, radiators, expansion tank, and associated plumbing.
  • The Cayman GT4 (2015-2016) carries a 25-liter cooling system capacity, which is 2 liters greater than the 23-liter figure shared by the other three variants in the same generation.
  • A 25-liter capacity in the Cayman GT4 is consistent with an expanded cooling circuit, as higher-output or track-oriented engines typically require additional coolant volume to manage elevated thermal loads.
  • All four variants share an identical service interval of 24 months or 30,000 km under normal use conditions, meaning whichever threshold is reached first triggers the scheduled coolant check.
  • The 30,000 km distance interval is relatively short by modern standards for coolant service, which reflects the precision engineering tolerances and fluid quality requirements associated with the 981 platform.
  • The interval specification is expressed as a check rather than a full drain-and-fill, indicating the service action at 24 months or 30,000 km involves inspecting coolant condition and level rather than necessarily replacing the entire system volume.
  • The Cayman GTS (2013-2016) shares the same 23-liter capacity and 24-month/30,000 km interval as the base Cayman and Cayman S, despite occupying a higher trim position, suggesting the cooling circuit architecture is common across those three variants.

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