Peugeot 408, P54

Brake fluid capacity & service interval

Peugeot 408, P54 brake fluid capacity ranges from min to max. Service intervals include normal use. The data covers 2 configurations.

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

TypeSpecifications
408 HYBRID 180, DGX (2022- )
  • Use: Normal
  • Between min and max.
408 HYBRID 225, DGY (2022- )
  • Use: Normal
  • Between min and max.

Additional Notes

  • Both the 408 HYBRID 180 (DGX) and 408 HYBRID 225 (DGY) variants, introduced in 2022, share the same brake fluid fill specification: the level is to be maintained between the minimum and maximum marks on the reservoir.
  • A "between min and max" specification is typical for brake fluid top-up or inspection service, indicating a level check rather than a measured volumetric fill quantity.
  • The hydraulic brake system note present in both configurations confirms that brake fluid is used in a conventional hydraulic circuit, which is relevant given that hybrid vehicles sometimes incorporate brake-by-wire or fully regenerative braking systems that may not rely on traditional hydraulic fluid in the same way.
  • Both variants carry a normal use condition, meaning the interval and level specification applies under standard operating circumstances rather than a severe or first-change-only basis.

Other Systems