Citroën C3 III, B618

Brake fluid capacity & service interval

The Citroën C3 III, B618 uses brake fluid with a capacity between min and max. The data covers 2 configurations.

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

TypeSpecifications
C3 III 1.2 PureTech 83, HMR (2020-2024)
  • Use: Normal
  • Between min and max.
C3 III 1.2 PureTech 83, HMR (2018-2020)
  • Use: Normal
  • Between min and max.

Additional Notes

  • The brake fluid specification for the Citroën C3 III (B618) 1.2 PureTech 83 with HMR transmission covers the hydraulic brake and clutch system as a combined circuit, meaning a single reservoir serves both functions.
  • The fill level guidance of "between min and max" applies under normal use conditions for both the 2018-2020 and 2020-2024 variants of the 1.2 PureTech 83 HMR, indicating a reservoir-level check rather than a measured volumetric capacity.
  • The absence of a discrete fluid volume figure in either row reflects that brake fluid service on these configurations is governed by reservoir level inspection rather than a drain-and-refill quantity, which is standard practice for hydraulic brake systems that are not being fully overhauled.

Other Systems