ERF ECU

Differential fluid capacity & service interval

ERF ECU differential fluid capacity is 14.5 liters. Service intervals are 100000 km or 12 months. The data covers 3 configurations.

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

TypeSpecifications
  • ECU 3.9 Euro 3 (2001-2004)
  • Rear
  • Use: Normal
  • Capacity 14,5 liter
  • Change 100000 km/ 12 months
  • Code: MAN HY-1350
  • ECU 5.9 Euro 3 (2001-2004)
  • Rear
  • Use: Normal
  • Capacity 14,5 liter
  • Change 100000 km/ 12 months
  • Code: MAN HY-1350
  • ECU 8.3 Euro 3 (2001-2004)
  • Rear
  • Use: Normal
  • Capacity 14,5 liter
  • Change 100000 km/ 12 months
  • Code: MAN HY-1350

Additional Notes

  • The ERF ECU rear differential fluid capacity is 14.5 liters across the 3.9, 5.9, and 8.3 Euro 3 engine variants for 2001-2004.
  • A 14.5-liter fill volume is consistent with a heavy-duty rear axle differential, where larger fluid volumes support the thermal and load demands of commercial truck operation.
  • The service interval for all three variants is set at 100,000 km or 12 months, whichever comes first, under normal use conditions.
  • The 12-month time-based limit running alongside the 100,000 km mileage threshold means a vehicle accumulating low annual mileage still reaches a service point on calendar time alone.
  • The rear differential fluid capacity and change interval are identical across the ECU 3.9, 5.9, and 8.3 Euro 3 configurations, indicating a shared rear axle assembly regardless of engine displacement.

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