Porsche Boxster, 981 (EU)

Automatic transmission fluid capacity & service interval

Porsche Boxster, 981 (EU) uses automatic transmission fluid with a capacity range of 2,9 to 5,3 liters. The service interval is 180000 km or 144 months. The data covers 6 configurations.

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

TypeSpecifications
  • Boxster GTS (2015-2016)
  • Clutch part
  • Use: Normal
  • Capacity 5,3 liter
  • Change 180000 km/ 144 months
  • Code: CG2.25 / ZF 7DT45
  • Boxster GTS (2015-2016)
  • Transmission part
  • Use: Normal
  • Capacity 2,9 liter
  • Change 180000 km/ 144 months
  • Code: CG2.25 / ZF 7DT45 7/1
  • Boxster (2012-2016)
  • Clutch part
  • Use: Normal
  • Capacity 5,3 liter
  • Change 180000 km/ 144 months
  • Code: CG2.05 / ZF 7DT45
  • Boxster (2012-2016)
  • Transmission part
  • Use: Normal
  • Capacity 2,9 liter
  • Change 180000 km/ 144 months
  • Code: CG2.05 / ZF 7DT45 7/1
  • Boxster S (2012-2016)
  • Clutch part
  • Use: Normal
  • Capacity 5,3 liter
  • Change 180000 km/ 144 months
  • Code: CG2.25 / ZF 7DT45
  • Boxster S (2012-2016)
  • Transmission part
  • Use: Normal
  • Capacity 2,9 liter
  • Change 180000 km/ 144 months
  • Code: CG2.25 / ZF 7DT45 7/1

Additional Notes

  • The Porsche Boxster 981 (EU) uses a semi-automatic transaxle unit that is serviced in two distinct fluid sections: a clutch part and a transmission part, each with separate capacity figures.
  • The clutch part of the semi-automatic transaxle holds 5.3 liters of fluid, a notably larger volume that reflects the hydraulic demands of the clutch actuation and lubrication circuit within the transaxle assembly.
  • The transmission part of the same transaxle carries a capacity of 2.9 liters, a smaller fill volume consistent with the gear-set lubrication section of a dual-section transaxle design.
  • Both the clutch part and transmission part share an identical service interval of 180,000 km or 144 months under normal use conditions, meaning both sections are due for fluid replacement at the same mileage and time threshold.
  • A 144-month time limit alongside the 180,000 km mileage interval means the fluid change is triggered by whichever threshold is reached first, placing a 12-year ceiling on fluid service life regardless of distance traveled.
  • The 5.3-liter clutch part capacity and 2.9-liter transmission part capacity apply equally across the Boxster, Boxster S (2012-2016), and Boxster GTS (2015-2016) trims, indicating no variation in transaxle fluid volumes across these configurations.
  • The Boxster GTS shares the same 180,000 km and 144-month service interval as the standard Boxster and Boxster S, with all rows specifying normal use conditions for both transaxle sections.

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