BMW 1 series, E82 (USA)

Automatic transmission fluid capacity & service interval

BMW 1 series, E82 (USA) automatic transmission fluid capacity ranges from 9 to 10 liters. Service intervals require a change at 100000 miles. Data covers 3 configurations.

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

TypeSpecifications
128i, N51 (2008-2013)
  • Use: Normal
  • Capacity 9-10 liter
  • Change 100000 miles
  • Code: GM GA6L45R (GM6) 6/1
128i, N52 (2007-2013)
  • Use: Normal
  • Capacity 9-10 liter
  • Change 100000 miles
  • Code: GM GA6L45R (GM6) 6/1
135i, N54 (2007-2010)
  • Use: Normal
  • Capacity 9 liter
  • Change 100000 miles
  • Code: ZF 6HP19 6/1

Additional Notes

  • The BMW 1 Series E82 (USA) automatic transmission fluid capacity ranges between 9 and 10 liters depending on engine configuration, with the 135i N54 specifying a fixed 9-liter fill rather than a range.
  • A capacity listed as a range, such as 9-10 liters, typically reflects variation between a partial service fill and a complete overhaul fill, where the higher figure accounts for fluid retained in the torque converter during a full drain and refill procedure.
  • The 128i with the N51 engine carries a model year range of 2008-2013, while the 128i with the N52 engine covers 2007-2013, meaning the N52 predates the N51 in the E82 lineup by one model year.
  • Both 128i variants, the N51 and N52, share an identical capacity specification of 9-10 liters, indicating the same transmission unit was used across both engine options in that model.
  • The 135i N54 was produced in the E82 body from 2007-2010 and carries a tighter 9-liter capacity figure, suggesting a different transmission calibration or fill procedure compared to the 128i configurations.
  • All three configurations share a 100,000-mile change interval under normal use conditions, which in BMW service terminology refers to standard driving patterns as opposed to more demanding operating environments.

Other Systems