Reducing Agent Delivery Module, Removing And Installing, Vehicles With Engine Code CPNA: Removing

WARNING: This page is about a different car, the 2016 Audi A8 Quattro and 2015 Audi A8 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

The reducing agent can cause skin irritation.

Always observe the safety precautions when working with reducing agent. Refer to SELECTIVE CATALYTIC REDUCTION (SCR) SYSTEM SAFETY PRECAUTIONS .

Follow the guidelines for clean working conditions. Refer to CLEAN WORKING CONDITIONS .

-- Remove the reducing agent tank. Refer to REDUCING AGENT TANK, REMOVING AND INSTALLING .

-- Disconnect the connector -arrow-.

Fig 1: Identifying Connector

Courtesy of AUDI OF AMERICA, LLC

-- Seal the open lines and connections with clean plugs from the : VAS6122 .

-- Release the locking ring -1- using the : T40268 counter clockwise and remove.

Fig 2: Identifying Locking Ring -1- And Wrench - SCR Tank T40268

Courtesy of AUDI OF AMERICA, LLC

-- Remove the reducing agent delivery unit with the Reducing Agent Pump -V437- from the tank.