Irisbus Arway

Differential fluid capacity & service interval

Irisbus Arway differential fluid capacity is 18,5 liters. Service intervals include changes at 120000 km or 12 months and 240000 km or 24 months. The data covers 4 configurations.

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

TypeSpecifications
  • Arway 10-13m Euro 4 (2005-2013)
  • Rear
  • Use: Normal
  • Capacity 18,5 liter
  • Change 120000 km/ 12 months
  • Arway 10-13m Euro 4 (2005-2013)
  • Rear
  • Use: Normal (alternative)
  • Capacity 18,5 liter
  • Change 240000 km/ 24 months
  • Arway 15m Euro 4 (2005-2013)
  • Rear
  • Use: Normal
  • Capacity 18,5 liter
  • Change 120000 km/ 12 months
  • Arway 15m Euro 4 (2005-2013)
  • Rear
  • Use: Normal (alternative)
  • Capacity 18,5 liter
  • Change 240000 km/ 24 months

Additional Notes

  • The rear differential on the Irisbus Arway Euro 4 holds 18.5 liters across both the 10-13m and 15m body length variants, a capacity consistent with heavy-duty coach axle assemblies where a larger fluid volume supports sustained thermal management under load.
  • The 10-13m Euro 4 variant carries a standard normal-use interval of 120,000 km or 12 months for rear differential fluid, whichever comes first.
  • An alternative normal-use interval of 240,000 km or 24 months is also listed for the 10-13m Euro 4, doubling both the distance and time thresholds relative to the primary interval.
  • The 15m Euro 4 variant shares the same 120,000 km or 12-month rear differential service interval under normal use as the shorter body configuration.
  • A matching alternative normal-use interval of 240,000 km or 24 months applies to the 15m Euro 4 as well, mirroring the extended schedule available for the 10-13m variant.
  • The 18.5-liter rear differential capacity is identical across all four listed configurations, indicating no variation in axle specification between the 10-13m and 15m body lengths for the Euro 4 generation.
  • The availability of two distinct normal-use intervals for each body length reflects a tiered servicing approach, where the alternative schedule extends both the mileage and calendar thresholds by a factor of two compared to the primary schedule.

Other Systems