Vauxhall Astra F Classic, M99

Automatic transmission fluid capacity & service interval

Vauxhall Astra F Classic and M99 models utilize automatic transmission fluid with a capacity range of 3 to 4 liters. Service intervals consist of checks every 24 months or 30000 km and fluid changes every 60000 km or 48 months. The data covers 4 configurations.

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

TypeSpecifications
Astra F Classic 1.6 (1999-2002)
  • Use: Normal
  • Capacity 4 liter
  • Check 24 months/ 30000 km
  • Code: AF 13-II 4/1
Astra F Classic 2.0 16V (100 kW) (1999-2002)
  • Use: Normal
  • Capacity 4 liter
  • Check 24 months/ 30000 km
  • Code: AF 20 4/1
Astra F Classic 2.0 Di (1999-2002)
  • Use: Normal
  • Capacity 3 liter
  • Check 24 months/ 30000 km
  • Code: AF 20 4/1
Astra F Classic 2.0 DTi (1999-2002)
  • Use: Normal
  • Capacity 4 liter
  • Change 60000 km/ 48 months
  • Code: AF 22 4/1

Additional Notes

  • The Vauxhall Astra F Classic, M99 automatic transaxle fluid capacity is listed at 4 liters for the 1.6, the 2.0 16V (100 kW), and the 2.0 DTi variants across the 1999-2002 model range.
  • The 2.0 Di stands apart from the other three variants, carrying a transaxle fluid capacity of 3 liters rather than 4 liters, which points to a physically smaller or differently configured automatic transaxle unit in that engine application.
  • A service fill capacity figure, as recorded here, reflects the amount of fluid needed during a routine fluid service rather than a full overhaul or dry fill, meaning the actual total system volume is typically higher than what the specifications state.
  • The 1.6 and the 2.0 16V (100 kW) share an identical service interval structure: a fluid check at 24 months or 30,000 km under normal use conditions, whichever comes first.
  • The 2.0 Di also carries a check interval of 24 months or 30,000 km under normal use conditions, aligning with the petrol variants on inspection frequency despite the reduced fluid capacity.
  • The 2.0 DTi is the only variant in the 1999-2002 lineup specified for a fluid change rather than a fluid check, with the interval set at 60,000 km or 48 months under normal use conditions.
  • The distinction between a check interval and a change interval is significant: a check interval requires inspecting fluid level and condition without necessarily replacing the fluid, while a change interval mandates full fluid replacement at the stated point.
  • The 2.0 DTi change interval of 60,000 km or 48 months is twice the distance and twice the time of the check intervals applied to the other three variants, reflecting a different maintenance approach for the diesel turbocharged configuration.

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