BMW 3 series, F30 / F31 / F80 (EU)

Brake fluid capacity & service interval

BMW 3 series, F30 / F31 / F80 (EU) uses brake fluid with a capacity range between min and max. The service interval is 24 months. The data covers 4 configurations.

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

TypeSpecifications
  • 325d (155 kW) (2016-2018)
  • DSC
  • Use: Flexible (max)
  • Between min and max.
  • Change 24 months
  • 325d (165 kW) (2016-2018)
  • DSC
  • Use: Flexible (max)
  • Between min and max.
  • Change 24 months
  • 325d (160 kW) (2015-2016)
  • DSC
  • Use: Flexible (max)
  • Between min and max.
  • Change 24 months
  • 325d (160 kW) (2013-2015)
  • DSC
  • Use: Flexible (max)
  • Between min and max.
  • Change 24 months

Additional Notes

  • The BMW 3 Series F30/F31/F80 (EU) brake fluid specifications cover the 325d variant across multiple power outputs, including 155 kW, 160 kW, and 165 kW configurations spanning 2013-2018.
  • All four 325d configurations share a "flexible (max)" use condition, meaning the fill level is not defined by a fixed volume but rather by a positional range within the reservoir, specifically between the minimum and maximum markers.
  • A 24-month change interval applies uniformly across all listed 325d variants, regardless of power output or model year subset, placing brake fluid renewal on a strictly time-based schedule rather than a mileage-based one.
  • The 24-month interval reflects the hygroscopic nature of brake fluid, which absorbs moisture from the atmosphere over time and lowers the boiling point of the fluid, making periodic replacement necessary independent of vehicle usage distance.
  • The 160 kW 325d appears across two separate year ranges, 2013-2015 and 2015-2016, indicating a mid-cycle production overlap or revision period, yet both entries carry identical brake fluid specifications.
  • All listed configurations reference the hydraulic brake/clutch system with DSC (Dynamic Stability Control), meaning the brake fluid circuit serves both the braking and clutch actuation functions as well as the stability control system in these variants.

Other Systems