Table of contents: Removal the EGR radiator ↓ Installation ↓
Exhaust gas temperature sensor I 1. Diesel particulate filter; 2. Lambda probe "G39" with heating element of lambda probe "Z19"; 3. Sensor 1 of the exhaust gas temperature "G235": lubricate with heat-resistant paste; 45 Nm; 4. Turbocharger; 5. Sensor 3 exhaust gas temperature "G495"; 6. Pressure sensor 1 OG "G450": lubricate with heat-resistant paste; 7. Bolt; 8. Pressure line of the exhaust gas pressure sensor 1 "G450": install in the particulate filter, secure in the bracket and tighten the bolts; 23 Nm; 9. Sensor 4 of the exhaust gas temperature "G648": lubricate with heat-resistant paste; 45 Nm
Parts and components of the exhaust gas recirculation system II 1. EGR connecting pipe; 2. Sealing washer: replace; 3. Clamp; mounting position: as shown in the figure; 9 Nm; 4. Cooling system hose; 5. Connecting nipple with thermostat of the exhaust gas recirculation system; 6. Mounting bracket; 7/8. O-ring: replace; 9/11/13/16/22. Bolt: 9 Nm; 10. EGR servomotor "V338": with EGR potentiometer "G212"; 12. Vacuum reservoir for switching the EGR system; 14. Coolant hoses; 15. EGR temperature sensor "G98"; 17. Engine crankcase ventilation pipe; 18. EGR cooler: with EGR cooler changeover valve; 19. Gasket: replace; 20. Connecting pipe of the exhaust gas recirculation system; 21. Bolt; 23. Sealing ring: replace; 24. Cooling system hose
Removal the EGR radiator
Drain the coolant. Remove the particulate filter. Remove the left upper coolant pipe. Remove the coolant pipe on the right upper side. Remove the oil filter housing. Loosen the clamp "arrow" and remove the pipe "1" of the EGR system

Unscrew bolt "1" and hollow bolt "3", put aside the oil supply line. Ignore "Pos. 2".

Unscrew bolts "1" and "2", remove the EGR tube.

Remove the plug connector "2" (orange) of the temperature sensor in the exhaust gas recirculation system "G98" from the bracket and disconnect the connector. Ignore "Pos. 1".

Unscrew the hollow bolt "1" and bolt "2", put the coolant line aside.

Disconnect the electrical connector "1". Carefully press the linkage "2" away from the ball joint "arrow". Unscrew the bolts "3" and remove the intake manifold flap drive electric motor 2 "V275" "pos. 4". Repeat the entire process on the other side of the car.

Remove the vacuum hose "1". Remove the coolant hose by loosening the fastening bracket "2". Remove the coolant hose by loosening the hose clamp "3". Unscrew the bolts "arrows" and remove the EGR radiator from the cylinder block in an upward direction

Installation
Installation in reverse order. Replace gaskets and sealing rings. Secure all hose connections with hose clamps of the appropriate series. Install the intake manifold flap drive motors. Install the coolant line. Install the oil filter housing. Install the coolant pipe on the right top. Install the left upper coolant pipe. Install the particulate filter. Fill with coolant.
The original article is located on the online resource: AUDImanual.ru
