| 
                     
                        | Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001YV9C |  
                        | Model Year Start: 2022 | Model: Avalon HV | Prod Date Range: [08/2021 -                    
                                       ] |  
                        | Title: A25A-FXS (EMISSION CONTROL): EGR COOLER: INSTALLATION; 2022 MY Avalon HV [08/2021 -        ] |  INSTALLATIONPROCEDURE1. INSTALL EGR COOLER ASSEMBLY 
                     
                        
                           | (a) Using an 8 mm socket wrench, loosen the 4 bolts of the No. 1 EGR pipe sub-assembly. 
                                 HINT: 
                                    
As the bolts of the No. 1 EGR pipe sub-assembly are only to be loosened, it is not necessary to replace the EGR inlet gasket and EGR valve adapter gasket.
If the No. 1 EGR pipe sub-assembly is removed, it is necessary to replace the EGR inlet gasket and EGR valve adapter gasket with new ones.
 |  |  
                     
                        
                           | (b) Using an 8 mm socket wrench, loosen the 2 bolts of the EGR valve assembly. |  |  
                     
                        
                           | (c) Install a new EGR cooler gasket to the EGR cooler assembly. NOTICE: Make sure that the claws of the EGR cooler gasket are toward the EGR cooler assembly side. |  |  (d) Install a new EGR valve gasket to the EGR cooler assembly. NOTICE: Make sure that the claws of the EGR valve gasket are toward the EGR cooler assembly side. 
                     
                        
                           | (e) Type A: (1) Temporarily install the EGR cooler assembly to the cylinder head sub-assembly and EGR valve assembly with the 3 bolts and 2 nuts. (2) Tighten the 3 bolts and 2 nuts in the order shown in the illustration. Torque:  24 N·m {245 kgf·cm, 18 ft·lbf} |  |  (f) Type B: (1) Temporarily install the EGR cooler assembly to the cylinder head sub-assembly and EGR valve assembly with the 2 bolts and 3 nuts. (2) Tighten the 2 bolts and 3 nuts in the order shown in the illustration. Torque:  24 N·m {245 kgf·cm, 18 ft·lbf} (g) Connect the No. 3 water by-pass hose and No. 4 water by-pass hose to the EGR cooler assembly and slide the 2 clips to secure them. (h) Using an 8 mm socket wrench, tighten the 2 bolts of the EGR valve assembly. Torque:  10 N·m {102 kgf·cm, 7 ft·lbf} (i) Using an 8 mm socket wrench, tighten the 4 bolts of the No. 1 EGR pipe sub-assembly. Torque:  10 N·m {102 kgf·cm, 7 ft·lbf} 2. INSTALL INVERTER WITH CONVERTER ASSEMBLY Click here
                        
                           
                              ![2019 - 2022 MY Avalon HV [04/2018 -        ]; HYBRID / BATTERY CONTROL: INVERTER WITH CONVERTER: INSTALLATION](/t3Portal/stylegraphics/info.gif)  3. ADD ENGINE COOLANT (for Engine) Click here
                        
                           
                              ![2019 - 2022 MY Avalon HV [04/2018 -        ]; MAINTENANCE: A25A-FXS COOLANT (for Engine): REPLACEMENT+](/t3Portal/stylegraphics/info.gif)  4. INSPECT FOR COOLANT LEAK (for Engine) Click here
                        
                           
                              ![2019 - 2022 MY Avalon HV [04/2018 -        ]; A25A-FXS (COOLING): COOLING SYSTEM: ON-VEHICLE INSPECTION+](/t3Portal/stylegraphics/info.gif)  5. INSPECT FOR EXHAUST GAS LEAK Click here
                        
                           
                              ![2019 - 2022 MY Avalon HV [04/2018 -        ]; A25A-FXS (INTAKE / EXHAUST): EXHAUST PIPE: INSTALLATION+](/t3Portal/stylegraphics/info.gif)  |