Unimog (MB) 437

Manual transmission fluid capacity & service interval

Unimog (MB) 437 manual transmission fluid capacity is 10,5 liters. Service intervals include checking every 300 hours and changing every 1200 hours or 12 months. The data covers 4 configurations.

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

TypeSpecifications
U 1350 L U 1500 (437) (1992-2001)
  • Use: Normal
  • Capacity 10,5 liter
  • Check 300 hours
  • Change 1200 hours/ 12 months
  • Code: 8/8
U 1800, 1850 L, 1850 L 38 (437) (1992-2001)
  • Use: Normal
  • Capacity 10,5 liter
  • Check 300 hours
  • Change 1200 hours/ 12 months
  • Code: 8/8
U 2450, 2450 L, 2450 L 38 (437) (1992-2001)
  • Use: Normal
  • Capacity 10,5 liter
  • Check 300 hours
  • Change 1200 hours/ 12 months
  • Code: 8/8
U 2150, 2150 L, 2150 L 38 (437) (1991-2001)
  • Use: Normal
  • Capacity 10,5 liter
  • Check 300 hours
  • Change 1200 hours/ 12 months
  • Code: 8/8

Additional Notes

  • Every variant listed across the Unimog (MB) 437 series carries a manual transmission fluid capacity of 10.5 liters, a figure consistent with a heavy-duty commercial gearbox rather than a light passenger vehicle unit.
  • The U 1350 L and U 1500 models within the 437 series share an identical 10.5-liter fill capacity with the larger U 1800, U 1850 L, and U 1850 L 38 variants, indicating a common transmission unit across those configurations.
  • Fluid level checks are specified at 300-hour intervals under normal use conditions across all four variant groups, reflecting an hour-based maintenance schedule typical of work and utility vehicles rather than distance-based intervals used in passenger cars.
  • The fluid change interval is set at 1,200 hours or 12 months under normal use conditions, whichever comes first, applying uniformly to all listed 437 variants.
  • The dual-trigger change interval of 1,200 hours or 12 months means a vehicle accumulating low operating hours in a calendar year would still require a fluid change at the 12-month mark under normal use conditions.
  • The U 2150, U 2150 L, and U 2150 L 38 variants carry a model year range beginning in 1991, making them the earliest-introduced configurations in the listed 437 series data, while the remaining groups begin from 1992.
  • All four variant groups share the same 300-hour check and 1,200-hour or 12-month change schedule, meaning the heavier U 2450 series carries no more frequent a service requirement than the lighter U 1350 L under normal use conditions.

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