Heating Reservoir, Removing And Installing: Removing

WARNING: This page is about a different car, the 2015 Audi Q7, 2014 Audi Q7, and 2013 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

Follow all safety precautions. Refer to SELECTIVE CATALYTIC REDUCTION (SCR) SYSTEM SAFETY PRECAUTIONS .

Follow the guidelines for clean working conditions. Refer to FUEL SUPPLY, INJECTION SYSTEM AND CHARGING SYSTEM CLEAN WORKING CONDITIONS .

-- Remover the reducing agent active tank. Refer to REDUCING AGENT ACTIVE TANK, REMOVING AND INSTALLING .

NOTE:

Place a clean cloth under the separating location to catch any reducing agent that may leak out.

WARNING:

The reducing agent can cause skin irritation.

Avoid contact with skin and eyes! Always wear protective gloves and safety glasses.
If reducing agent should get on your skin, wash it off immediately with soap and water.
If reducing agent gets in your eye, rinse the eye for several minutes with water.
Never inhale or swallow the reducing agent!
Should you swallow any reducing agent, rinse your mouth, drink plenty of water and contact a doctor immediately.

-- Press the release clasp and disconnect the supply line -3- and return line -1-. Refer to Figure.

Fig 1: Reducing Agent Delivery Unit -4-

Courtesy of AUDI OF AMERICA, LLC

-- Remove the connectors -5- on the bracket and free them up.

-- Remove the union nut -2- using the Wrench - Union NutT50014 and carefully remove the heating reservoir -4- upward.

WARNING:

Danger due to reducing agent leaking out.

Note that there is still some reducing agent left inside the active tank and heating reservoir.