Toyota Prius, W2 (EU)

Coolant capacity & service interval

Toyota Prius, W2 (EU) coolant capacity ranges from 2,7 to 8,6 liters. Service intervals include checks at 30000 km and changes at 90000 km or 150000 km. The data covers 8 configurations.

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

TypeSpecifications
  • Prius THSD, W2 (2006-2009)
  • Combustion engine
  • Use: Normal
  • Capacity 8,6 liter
  • Check 30000 km
  • Change 90000 km
  • Prius THSD, W2 (2006-2009)
  • Combustion engine
  • Use: First change only
  • Capacity 8,6 liter
  • Check 30000 km
  • Change 150000 km
  • Prius THSD, W2 (2006-2009)
  • Electric drive
  • Use: Normal
  • Capacity 2,7 liter
  • Check 30000 km
  • Change 90000 km
  • Prius THSD, W2 (2006-2009)
  • Electric drive
  • Use: First change only
  • Capacity 2,7 liter
  • Check 30000 km
  • Change 150000 km
  • Prius THSD, W2 (2003-2006)
  • Combustion engine
  • Use: Normal
  • Capacity 8,6 liter
  • Check 30000 km
  • Change 90000 km
  • Prius THSD, W2 (2003-2006)
  • Combustion engine
  • Use: First change only
  • Capacity 8,6 liter
  • Check 30000 km
  • Change 150000 km
  • Prius THSD, W2 (2003-2006)
  • Electric drive
  • Use: Normal
  • Capacity 2,7 liter
  • Check 30000 km
  • Change 90000 km
  • Prius THSD, W2 (2003-2006)
  • Electric drive
  • Use: First change only
  • Capacity 2,7 liter
  • Check 30000 km
  • Change 150000 km

Additional Notes

  • The Toyota Prius W2 (EU) carries two separate coolant circuits, one serving the combustion engine and one serving the electric drive system, each with its own capacity and service schedule.
  • The combustion engine cooling system holds 8.6 liters across both the 2003-2006 and 2006-2009 model ranges, a volume consistent with a full system fill including the reservoir, heater core, and all associated passages.
  • The electric drive cooling circuit holds 2.7 liters, a notably smaller volume that reflects the more compact thermal management loop dedicated to the hybrid power electronics and motor-generator units.
  • Under normal use conditions, both the combustion engine and electric drive cooling systems share a 90,000 km change interval, with checks scheduled every 30,000 km throughout.
  • A first change only condition extends the initial coolant change interval to 150,000 km for both circuits, after which subsequent changes revert to the 90,000 km normal schedule.
  • The 30,000 km check interval applies uniformly across all configurations, model year ranges, and use conditions, covering both the combustion engine and electric drive systems.
  • Capacity figures remain identical between the 2003-2006 and 2006-2009 production periods for both cooling circuits, indicating no change in system volume across the W2 generation.