BMW 4 series Convertible, F33 / F83 (EU)
Differential fluid capacity & service interval
BMW 4 series Convertible, F33 / F83 (EU) requires 1 liter of differential fluid. Service intervals include 2000 km and 90000 km/ 72 months. The data covers 11 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
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Additional Notes
- All rear differential configurations listed for the BMW 4 Series Convertible F33/F83 M4 variants share a uniform 1-liter fluid capacity. A 1-liter fill is typical for a compact limited-slip or locking rear differential unit, where the housing volume is relatively small compared to a transmission or transfer case.
- The M4 Convertible (317 kW) covering 2014-2019 carries no change interval in the specifications, only a 1-liter capacity figure. The absence of an interval entry in that row distinguishes it from the PF-designated variants of the same output level, which carry explicit service schedules.
- PF-designated M4 Convertible variants across both the 317 kW and 331 kW output levels follow a normal-use change interval of 90,000 km or 72 months, whichever comes first. The 72-month ceiling means a time-based limit applies even when mileage accumulation is low.
- A separate first-change-only interval of 2,000 km applies to all PF-designated variants at both power outputs. A break-in fluid change at 2,000 km is associated with new or rebuilt differential units, where initial wear particles from component seating are removed before the standard service schedule begins.
- The 331 kW M4 Convertible covering 2014-2019 carries both a normal-use interval of 90,000 km/72 months and a first-change-only interval of 2,000 km, while the 317 kW variant of the same production span lists only a capacity value with no interval data.
- PF-designated variants appear in two overlapping production spans, 2018-2019 and 2019-2020, for both the 317 kW and 331 kW outputs. The year 2019 is shared across both spans, and the specifications treat each span as a distinct configuration entry with identical interval and capacity values.
- The 1-liter capacity figure is consistent across normal-use and first-change-only rows for every listed variant. A consistent capacity regardless of use condition confirms the figure reflects the physical fill volume of the differential housing rather than a flush-and-refill quantity that might vary by procedure type.