Active ECO helps improve fuel efficiency by controlling the engine and transaxle. But fuel-efficiency can be changed by the driver's driving habits and road conditions.
Kia Cee'd JD Service Manual: Mode Control Actuator Repair procedures
Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the mode control actuator connector.
3.
Verify that the mode control actuator operates to the defog mode when
connecting 12V to terminal 3 and ...
Kia Cee'd JD Service Manual: Specifications
Specifications
Item
Specification
Master cylinder
Cylinder I.D.
22.22 mm
Piston stroke
45 ± 1 mm (1.77 ± 0.039 in)
Fluid level switch
Provided
...