Reducing Agent Delivery Module Overview

WARNING: This page is about a different car, the 2014 Audi A8 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Reducing Agent Delivery Module Overview

Courtesy of AUDI OF AMERICA, LLC

Reducing Agent Tank
- Removing and installing, refer to REDUCING AGENT TANK, REMOVING AND INSTALLING .
Metering Line
- To Reducing Agent Injector -N474-
- With Reducing Agent Ventilation Line Heater -Z104-
- To disconnect, press release buttons
- Clipped in on fuel tank
  WARNING:
  Danger due to reducing agent leaking out.
  - To prevent large amounts of reducing agent leaking out when opening the metering line, wait for the recirculation process to complete, refer to SELECTIVE CATALYTIC REDUCTION (SCR) SYSTEM SAFETY PRECAUTIONS .
Seal
- Replace
- Install dry
- Must not be twisted on itself
Locking Ring
- Release and lock with Wrench - SCR Tank T40268
- Always replace if removed
Delivery Module
- With
  - Filter
  - Reducing Agent Pump -V437-
  - Reducing Agent Metering System Pressure Sensor -G686-
  - Reducing Agent Reservoir Sensor -G697-
  - Reducing Agent Tank Heater (Heating Circuit 1) -Z102-
- Delivery Module, Removing and Installing, refer to REDUCING AGENT DELIVERY MODULE, REMOVING AND INSTALLING .
- Do not bend the heat mats when installing them
Wiring Harness