Mercedes-Benz EQB-Class, X243 (USA / CAN)

Brake fluid capacity & service interval

Mercedes-Benz EQB-Class, X243 (USA / CAN) uses brake fluid with a capacity range defined by min and max values. The service interval for fluid replacement is 24 months. The data covers 3 configurations.

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

TypeSpecifications
EQB 250+, 243.601 (2022- )
  • Use: Normal
  • Between min and max.
  • Change 24 months
EQB 300 4MATIC, 243.608 (2022- )
  • Use: Normal
  • Between min and max.
  • Change 24 months
EQB 350 4MATIC, 243.612 (2022- )
  • Use: Normal
  • Between min and max.
  • Change 24 months

Additional Notes

  • The Mercedes-Benz EQB-Class X243 brake fluid specification applies to the hydraulic brake system across all three variants: the EQB 250+ (243.601), EQB 300 4MATIC (243.608), and EQB 350 4MATIC (243.612).
  • Rather than a fixed volume fill quantity, the brake fluid level for all three variants is expressed as a range between a minimum and maximum mark, which is the standard method for reservoir-based hydraulic brake systems where the fluid level is verified visually rather than measured by volume.
  • All three variants share an identical service interval of 24 months under normal use conditions, meaning the change schedule is time-based rather than mileage-based.
  • The 24-month interval applies uniformly across the EQB 250+, EQB 300 4MATIC, and EQB 350 4MATIC, with no variation between the single-motor front-wheel-drive configuration and the dual-motor 4MATIC configurations.

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