Opel Combo A

Automatic transmission fluid capacity & service interval

Opel Combo A automatic transmission fluid has a capacity range of 6,3 to 7 liters. Service intervals require checks every 15000 km or 12 months. The data covers 5 configurations.

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

TypeSpecifications
Combo A 1.6i (1991-1993)
  • Use: Normal
  • Capacity 7 liter
  • Check 15000 km/ 12 months
  • Code: Aisin Warner 4/1
Combo A 1.7 D (1989-1993)
  • Use: Normal
  • Capacity 7 liter
  • Check 15000 km/ 12 months
  • Code: Aisin Warner 4/1
Combo A 1.3 (1986-1989)
  • Use: Normal
  • Capacity 6,3 liter
  • Check 15000 km/ 12 months
  • Code: 3/1
Combo A 1.6 (1986-1990)
  • Use: Normal
  • Capacity 7 liter
  • Check 15000 km/ 12 months
  • Code: Aisin Warner 4/1
Combo A 1.6 D (1986-1989)
  • Use: Normal
  • Capacity 7 liter
  • Check 15000 km/ 12 months
  • Code: Aisin Warner 4/1

Additional Notes

  • The Opel Combo A automatic transmission fluid specifications cover a transaxle-type automatic unit across all listed engine variants, meaning the transmission and final drive share a common fluid reservoir rather than being serviced as separate components.
  • The 1.3-engined variant (1986-1989) carries a fluid capacity of 6.3 liters, which is the only figure across the entire Combo A range that falls below 7 liters, reflecting the smaller drivetrain associated with the 1.3 displacement.
  • All remaining variants — the 1.6, 1.6 D, 1.6i, and 1.7 D — share a uniform 7-liter capacity, indicating a common transaxle unit across those engine configurations regardless of whether the engine is petrol or diesel.
  • A 7-liter figure for a transaxle automatic is consistent with a full system capacity, accounting for fluid held in the torque converter, valve body, and differential housing together, rather than a partial drain-and-refill service quantity.
  • The check interval of 15,000 km or 12 months applies uniformly across all five variants under normal use conditions, meaning the interval is not adjusted for diesel or petrol engine type within the Combo A range.
  • The 12-month time component of the service interval functions as a calendar-based ceiling, so whichever threshold — distance or time — is reached first would trigger a fluid check, regardless of actual mileage accumulated.
  • The 1.6i variant (1991-1993) shares the same 7-liter capacity and 15,000 km/12-month check interval as the earlier carbureted 1.6 (1986-1990), despite the fuel injection system representing a later generation of the engine.
  • The 1.6 D and 1.7 D diesel variants carry the same 7-liter transaxle capacity as the petrol 1.6 models, which is notable given that diesel engines typically produce higher torque loads that can influence transmission sizing decisions.

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