BMW 7 series, E32 (USA)

Automatic transmission fluid capacity & service interval

BMW 7 series, E32 (USA) automatic transmission fluid capacity ranges from 3 to 13,1 liters. Service intervals follow a flexible on board maintenance system. The data covers 5 configurations.

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

TypeSpecifications
  • 740i (1992-1994)
  • With black rating plate
  • Use: Flexible (on board maintenance system)
  • Capacity 5,5 liter
  • Capacity 13,1 liter (+ torque converter)
  • Code: ZF 5HP30 (A5S560Z) 5/1
  • 740iL (1992-1994)
  • With black rating plate
  • Use: Flexible (on board maintenance system)
  • Capacity 5,5 liter
  • Capacity 13,1 liter (+ torque converter)
  • Code: ZF 5HP30 (A5S560Z) 5/1
735i (1987-1992)
  • Use: Flexible (on board maintenance system)
  • Capacity 3 liter
  • Capacity 7,5 liter (+ torque converter)
  • Code: ZF 4HP22 4/1
735iL (1987-1992)
  • Use: Flexible (on board maintenance system)
  • Capacity 3 liter
  • Capacity 7,5 liter (+ torque converter)
  • Code: ZF 4HP22 4/1
750iL (1987-1994)
  • Use: Flexible (on board maintenance system)
  • Capacity 7,5-8,1 liter (+ torque converter)
  • Capacity 3-3,1 liter (Service fill)
  • Code: ZF 4HP22, 4HP22EH 4/1

Additional Notes

  • The BMW 7 Series E32 (USA) automatic transmission fluid intervals across all five configurations are governed by a flexible schedule determined by the on-board maintenance system rather than a fixed mileage or time interval.
  • The 735i and 735iL (1987-1992) share identical fluid capacities: 3 liters for a service fill and 7.5 liters when the torque converter is included in a full overhaul fill.
  • The 2.5-liter difference between the 735i/735iL service fill and the full torque converter fill reflects how much fluid the torque converter itself retains, a volume that is not recovered during a standard drain-and-fill service.
  • The 740i and 740iL (1992-1994) are specified with a notably larger service fill capacity of 5.5 liters, compared to 3 liters on the earlier six-cylinder variants, indicating a physically larger transmission unit.
  • At 13.1 liters with the torque converter included, the 740i and 740iL carry the largest total ATF capacity in the E32 lineup, nearly double the equivalent figure for the 735i and 735iL.
  • The 740i and 740iL specifications include a notation for "automatic with black rating plate," which distinguishes the transmission variant and is relevant when confirming the correct fluid capacity applies to a given unit.
  • The 750iL (1987-1994) presents its capacities in a reversed format relative to the other configurations: the larger figure of 7.5-8.1 liters is listed first and corresponds to the torque converter fill, while the 3-3.1 liter figure is explicitly labeled as the service fill.
  • The 750iL service fill capacity of 3-3.1 liters is expressed as a range rather than a fixed value, which is consistent with minor variation that can occur depending on how completely the transmission drains before refilling.
  • Across the 735i, 735iL, and 750iL, the service fill capacities are closely grouped between 3 and 3.1 liters, despite the 750iL using a larger twelve-cylinder engine, suggesting the transmission sump volume in those units is comparable regardless of engine displacement.

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