Overview - Reducing Agent Delivery Module

WARNING: This page is about a different car, the 2016 Audi A7 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Reducing Agent Delivery Module Exploded View

Courtesy of AUDI OF AMERICA, LLC

Tank
- For the reducing agent
- Removing and installing. Refer to REDUCING AGENT TANK, REMOVING AND INSTALLING .
Wiring Harness
Seal
- Always replace
- Install dry
Heating Reservoir
- With:
  - Filter
  - Reducing Agent Pump -V437-
  - Reducing Agent Tank Sensor -G684-
  - Reducing Agent Temperature Sensor -G685-
  - Reducing Agent Metering System Pressure Sensor -G686-
  - Reducing Agent Tank Heater (Heating Circuit 1) -Z102-
- Heating Reservoir. Removing and installing. Refer to REDUCING AGENT DELIVERY MODULE, REMOVING AND INSTALLING .
- Do not bend the heat mats when installing them
Locking Ring
- Always replace if removed
- Release and lock with Wrench - SCR Tank : T40268
Metering Line
- To Reducing Agent Injector -N474-
- With Reducing Agent Ventilation Line Heater -Z104-
- To disconnect, press release buttons
  WARNING:
  Danger due to reducing agent leaking out.
  - To prevent large amounts of reducing agent from leaking out when opening the metering line, wait for the recirculation process to complete. Refer to SCR SYSTEM SAFETY PRECAUTIONS => Reducing Agent, Automatic Regeneration .