Remove intake pipe (above cylinders 1-3-5) - see operation "Intake Pipe (above Cylinders 1-3-5), Remove and Install (X 25 XE)" or "Intake Pipe (above Cylinders 1-3-5), Remove and Install (Y 26 SE)".
Release coolant connections (4) in direction of arrow and detach from heater core - collect escaping coolant.
Release coolant connections (1) in direction of arrow and disconnect from adapter (2). Disconnect adapter from bracket and remove vacuum hose (3).
Remove adapter with coolant shut-off valve.
Important!
Note installation position of coolant shut-off valve - arrow (1) on housing.
Mark installation position of coolant hoses when removing coolant hoses from adapter or coolant cut-off valve - attach positioning marks if necessary (arrows).
Install, Connect
If removed: connect coolant hoses to coolant shut-off valve or adapter.
Connect vacuum hose to coolant shut-off valve.
Connect coolant shut-off valve with adapter to bracket and lock.
Connect coolant connections to adapter.
Install, Connect
Install intake pipe (above cylinders 1-3-5) - see operation "Intake Pipe (above Cylinders 1-3-5), Remove and Install (X 25 XE)" or "Intake Pipe (above Cylinders 1-3-5), Remove and Install (Y 26 SE)".
Connect coolant connections to heater core and lock.
Top up cooling system - see operations "Cooling System, Top up and Bleed" and "Cooling System, Check for Leaks".
Remove, Disconnect 
Important! 
Install, Connect 