12. COOLING SYSTEM Downtown 300i ABS Outlet Tube of Reserve Tank Inspect the radiator soldered joints and seams for leaks. Blow dirt out from between core fins with compressed air. If insects are clogging the radiator, wash them off. Carefully straighten any bent fins. Radiator RADIATOR REMOVAL Drain the coolant. Disconnect the outlet tube of the reserve tank. Air Vent Tube Remove the overflow tube clamp and disconnect the overflow tube. Disconnect the air vent tube from the radiator filler. Disconnect the fan motor wire coupler. Overflow Tube Loosen the hose band and disconnect the upper hose and lower hose from the Outlet Tube of Reserve Tank radiator. Disconnect the thermostatic switch wire coupler. Outlet Tube of Reserve Tank Thermostatic Switch 12-5