OEM Scion xA Radiator

Scion xA Radiator Parts and Q&A

• Radiator Assembly
  16400-21121
  Q: How to replace the radiator assembly on Scion xA?

  A:

  The radiator assembly replacement process requires the engine coolant drainage, followed by unfastening both radiator hose ends and automatic transaxle oil cooler inlet/outlet connections. The first step requires the removal of the radiator grille followed by 3 bolt removal from the hood lock assembly. This process leads to the final step of removing the hood lock support sub-assembly through its two bolts and a wire clip and supporting structure. The procedure to remove the radiator support upper begins by disconnecting the horn assembly connector and removing 2 clips from the opening cover while also separating the condenser from the radiator support upper by removing 2 bolts. Finally, unscrew 4 bolts to detach the radiator support upper. The radiator assembly removal process requires disconnecting the cooling fan motor connector followed by engine compartment clearance of the radiator assembly and then detaching the fan shroud with fan using 3 bolts before taking off the water filler with 2 bolts to complete the procedure by removing the radiator support cushions and radiator support lower. The installation process begins with setting the radiator support cushions and radiator support lower onto the radiator followed by inserting the water filler with 2 bolts to 7.5 Nm (76 kgf-cm, 66 inch lbs.) torque setting before installing the fan shroud with fan by using 3 bolts at 7.5 Nm (76 kgf-cm, 66 inch lbs.). Install the cooling system radiator assembly before linking the cooling fan motor connections. Fixed the radiator support sub-assembly upper using 4 bolts at 5.0 Nm torque level (51 kgf-cm, 44 inch lbs.) then integrated the condenser through 2 bolts before restoring the horn components. First mount the radiator support opening cover and then handle the hood lock support sub-assembly installation using 2 bolts and a clip before securing it with a torque of 5.0 Nm (51 kgf-cm, 44 inch lbs.). Temporarily add the hood lock assembly with 3 bolts. Adjust the hood sub-assembly before installing the radiator grille and adding engine coolant while performing leak inspections.
• Radiator Assembly
  16400-21071
  Q: How to inspect and clean the radiator on Scion xA?

  A:

  Measure the valve opening pressure on the radiator cap sub-assembly when performing inspection and cleaning of the radiator. The inspection of rubber packing numbers 1, 2 and 3 requires water cleaning with hand scouring when foreign objects or stains are detected. The inspection should show that parts 1, 2, or 3 have no deformities, cracks or swelling and that 3 and 4 are freely separate from each other. Before testing with the radiator cap machine apply engine coolant to 2 and 3 then operate the pump several times with the device oriented at 30 degrees or more above horizontal while observing maximum pressure. The radiator cap sub-assembly needs replacement when the maximum pressure measurement falls below the specified minimum standard value. On-vehicle cleaning requires checking fins for blockage by inspecting for leaves or dirt along with insects or inspecting the hose connections and ensuring the radiator and condenser are clean. The blockage removal process begins by washing the fins with water or using a steam cleaner but you must maintain distance to prevent damage from occurring. To straighten fins you should use both a screwdriver and pliers while refraining from pouring water toward electronic elements. After cleaning, the fins need to be dried using compressed air.