Overview - Reducing Agent Injector -N474-

Fig 1: Exploded View Of Reducing Agent Injector -N474-

Courtesy of AUDI OF AMERICA, LLC

1. Reducing Agent Injector -N474-
   • Removing and installing. Refer to REDUCING AGENT INJECTOR -N474-, REMOVING AND INSTALLING .
2. Clamp
3. Coolant Line
   • Connection diagram. Refer to COOLANT HOSE CONNECTION DIAGRAM .
4. Coolant Line
   • Connection diagram. Refer to COOLANT HOSE CONNECTION DIAGRAM .
5. Emissions Control Module
   • Overview. Refer to OVERVIEW - EMISSIONS CONTROL SYSTEM .
   • Removing and installing. Refer to EMISSIONS CONTROL MODULE, REMOVING AND INSTALLING .
6. Bolt
   • 5 Nm 
   • Always Replace After Removing
7. Screw-Type Clamp
   • 5 Nm 
   • Always Replace After Removing
8. Rubber Ring
9. Seal
   • Always Replace After Removing