Steyr S23

Transfer case fluid capacity & service interval

Steyr S23 requires transfer case fluid with a capacity of 4,5 liters. Service intervals include checks every 20000 km and changes every 40000 km or 12 months. The data covers 1 configuration.

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

TypeSpecifications
15S23 4x4 (1988-1996)
  • Use: Normal
  • Capacity 4,5 liter
  • Check 20000 km
  • Change 40000 km/ 12 months
  • Code: VG 1200

Additional Notes

  • The transfer case on the Steyr S23 15S23 4x4 carries a fluid capacity of 4.5 liters, a figure consistent with a service fill rather than a full overhaul drain, where residual fluid typically remains in passages and bearing surfaces.
  • The change interval for the 15S23 4x4 transfer case fluid is set at 40,000 km or 12 months, whichever comes first, meaning time elapsed can trigger a service requirement even when mileage accumulation is low.
  • A separate check interval of 20,000 km is specified for the 15S23 4x4 transfer case, placing a fluid inspection at the halfway point between full change intervals rather than coinciding with them.
  • The 20,000 km check interval and 40,000 km change interval together establish a two-stage maintenance cycle for the Steyr S23 15S23 4x4 transfer case across the 1988-1996 model range.
  • The specifications apply under normal use conditions, which in fluid service contexts generally refers to standard operating loads and environments as opposed to elevated stress, towing, or off-road duty cycles.

Other Systems