BMW 3 series Convertible, E93 (USA)

Differential fluid capacity & service interval

BMW 3 series Convertible, E93 (USA) differential fluid capacity ranges from 1 liter to 1,2 liters. The data covers 6 configurations.

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

TypeSpecifications
  • 335i Convertible, N55 (2010-2013)
  • Rear
  • Use: Normal
  • Capacity 1,2 liter
  • Code: 215L
  • 335is Convertible, N54 (2010-2013)
  • Rear
  • Use: Normal
  • Capacity 1,2 liter
  • Code: 215L
  • 328i Convertible, N52 (2007-2013)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • Code: 188L
  • 328i Convertible, N51 SULEV (2007-2013)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • Code: 188L
  • 335i Convertible, N54 (2007-2010)
  • Rear
  • Use: Normal
  • Capacity 1,2 liter
  • Code: 215L
  • M3 Convertible (2007-2013)
  • Rear, with differential lock
  • Use: Normal
  • Capacity 1,2 liter (Dry fill)
  • Capacity 1,1 liter (Service fill)

Additional Notes

  • The 328i Convertible variants — both the N51 SULEV and N52 engine configurations across 2007-2013 — share an identical rear differential capacity of 1 liter, reflecting the smaller differential unit paired with these naturally aspirated inline-six engines.
  • The 335i Convertible with the N54 engine (2007-2010) and the 335i Convertible with the N55 engine (2010-2013) both carry a rear differential capacity of 1.2 liters, indicating a larger differential housing suited to the higher torque output of the turbocharged powerplants.
  • The 335is Convertible, powered by the N54 engine from 2010-2013, also specifies a 1.2-liter rear differential capacity, consistent with the other turbocharged 335-series configurations in the E93 lineup.
  • The BMW 3 Series Convertible E93 M3 (2007-2013) is the only variant in the lineup specifying a rear differential equipped with a differential lock, which accounts for the distinction between its dry fill and service fill capacities.
  • A dry fill capacity of 1.2 liters on the M3 Convertible represents the total fluid volume required when filling a completely drained or newly assembled differential unit, such as after a full overhaul or component replacement.
  • The M3 Convertible service fill capacity of 1.1 liters reflects the residual fluid that remains in the differential during a standard drain procedure, meaning a routine fluid change requires slightly less fluid than a full dry fill.
  • All six configurations across the E93 3 Series Convertible range list rear differential fluid intervals under normal use conditions, with no severe-use interval distinctions present in the specifications.

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