Unimog (MB) 424

Manual transmission fluid capacity & service interval

Unimog 424 manual transmission fluid capacity is 12 liters. Service intervals include checking every 800 hours and changing every 1600 hours or 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 1000, (424) (1984-1992)
  • Manual/P.T.O.
  • Use: Normal
  • Capacity 12 liter
  • Check 800 hours
  • Change 1600 hours/ 12 months
  • Code: 8/8
  • U 1200, (424) (1984-1988)
  • Manual/P.T.O.
  • Use: Normal
  • Capacity 12 liter
  • Check 800 hours
  • Change 1600 hours/ 12 months
  • Code: 8/8

Additional Notes

  • The manual transmission and power take-off (P.T.O.) unit on the Unimog (MB) 424 carries a fluid capacity of 12 liters, a figure that reflects a combined sump serving both the gearbox and the integrated P.T.O. rather than a standalone transmission fill.
  • A check interval of 800 hours is specified under normal use conditions, meaning fluid level inspection falls due at roughly half the frequency of a full drain-and-fill service.
  • The change interval is set at 1,600 hours or 12 months under normal use, whichever comes first, pairing an hour-based threshold with a calendar limit to account for vehicles that accumulate low operating hours over time.
  • Both the U 1000 and U 1200 variants within the 424 series share identical capacity and interval figures, with 12 liters, an 800-hour check, and a 1,600-hour or 12-month change applying equally to each.
  • The U 1000 covers the 1984-1992 model years, while the U 1200 is specified for 1984-1988, meaning the two variants overlap across the earlier portion of the production window but diverge at the later end.

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