Unimog (MB) 425

Brake fluid capacity & service interval

Unimog (MB) 425 brake fluid capacity is 1 liter. Service intervals require a change every 12 months. The data covers 2 configurations.

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

TypeSpecifications
U 1300, 1500 (425) (1982-1992)
  • Use: Normal
  • Capacity 1 liter
  • Change 12 months
U 1300 (425) (1976-1984)
  • Use: Normal
  • Capacity 1 liter
  • Change 12 months

Additional Notes

  • The Unimog (MB) 425 carries a brake fluid capacity of 1 liter across all listed configurations, which is a typical figure for a hydraulic brake system reservoir fill rather than a full system overhaul volume.
  • A 12-month change interval applies to the U 1300 (425) covering 1976-1984, reflecting the standard industry practice of annual brake fluid replacement to manage moisture absorption in glycol-based fluids.
  • The U 1300, 1500 (425) spanning 1982-1992 shares the same 1-liter capacity and 12-month change interval as the earlier U 1300 configuration, despite the expanded model range that now includes the 1500 variant.
  • Both rows specify normal use conditions, meaning the 12-month interval is not adjusted for severe operating environments such as heavy towing, frequent braking, or extreme temperatures.

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