Unimog (MB) 421

Brake fluid capacity & service interval

Unimog 421 uses brake fluid with a capacity of 0,8 liter. The service interval for the fluid change is 12 months. The data covers 1 configuration.

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

TypeSpecifications
U 600, U 600 L (421) (1970-1992)
  • Use: Normal
  • Capacity 0,8 liter
  • Change 12 months

Additional Notes

  • The Unimog (MB) 421 carries a brake fluid capacity of 0.8 liter for the U 600 and U 600 L, which is consistent with a service fill volume for a hydraulic brake system rather than a full overhaul quantity.
  • The 12-month change interval applied to the U 600 and U 600 L reflects a time-based service schedule rather than a mileage or hours-of-operation threshold, meaning the fluid is replaced on an annual cycle regardless of usage volume.
  • The specifications cover the U 600 and U 600 L variants across the 1970-1992 model years, with both sharing identical capacity and interval values under normal use conditions.

Other Systems