BMW 328 (EU)

Differential fluid capacity & service interval

BMW 328 (EU) differential fluid capacity is 4 liters. Service intervals include checking at 5000 km and changing at 10000 km. The data covers 1 configuration.

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

TypeSpecifications
  • 328 (1936-1940)
  • Rear
  • Use: Normal
  • Capacity 4 liter (only sump)
  • Check 5000 km
  • Change 10000 km

Additional Notes

  • The BMW 328 (EU) rear differential holds 4 liters of fluid, a figure that reflects the sump-only fill volume rather than a total system or overhaul capacity.
  • Under normal use conditions, the differential fluid change interval is set at 10,000 km, while an intermediate check is specified at 5,000 km, placing a fluid inspection at the halfway point between changes.
  • The 5,000 km check interval indicates that fluid condition and level were expected to be monitored actively between full drain-and-fill services, which was a common practice for mechanically loaded rear axle sumps of the era.