12. COOLING SYSTEM K-XCT 125i THERMOSTAT THERMOSTAT REMOVAL REMOVAL Drain the coolant Remove the luggage box (1) Bolts Disconnect the water hose (1) from the thermostat housing. Remove the mounting bolt (2) and the thermostat housing attaching the cylinder head. INSTALLATION The installation sequence is the reverse of removal. After the water thermostat has been installed, fill coolant and perform air bleeding . 12-18