Lexus CT200h, ZWA10 (EU)

Additional Notes

• The Lexus CT200h ZWA10 (EU) carries two separate cooling circuits: one for the combustion engine and one for the electric drive system, each with its own capacity and service interval specifications.
• The combustion engine cooling system holds 6.5-6.9 liters across all model years from 2011-2022, a range that reflects minor variation depending on fill method or residual fluid retained in the system during a service fill.
• The electric drive cooling system holds 2.1 liters across all model years from 2011-2022, a notably smaller volume consistent with the more compact thermal management circuit serving the hybrid drivetrain components.
• For the 2011 model year, no coolant check interval is listed for either circuit, whereas from 2012 onward a 30,000 km check interval was added to both the combustion engine and electric drive cooling systems.
• Under normal use conditions, the combustion engine coolant change interval is 90,000 km across all model years from 2011-2022.
• The first change only condition extends the combustion engine coolant change interval to 150,000 km, applying to all model years from 2011-2022. This longer interval reflects the extended service life of factory-fill coolant before the first drain and refill.
• The electric drive cooling system follows the same interval structure as the combustion engine circuit: 90,000 km under normal use and 150,000 km under the first change only condition, across all model years from 2011-2022.
• The 2019-2020 and 2020-2022 year ranges share identical capacity and interval values with the 2012-2019 range for both cooling circuits, indicating no specification changes were introduced across those later production periods.