Heating Reservoir, Removing And Installing: Installing

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.

Tightening specifications. Refer to OVERVIEW - REDUCING AGENT ACTIVE TANK AND ATTACHMENTS .

NOTE:

Replace the seal.

Thoroughly clean the sealing ring surfaces.

CAUTION:

There is a danger of damaging the heating mats.

Do not bend the heating mats when installing them.

-- Install the heating reservoir -2- in the active tank. Slide the heating element through the gap between the reducing agent delivery unit and installation opening into the active tank. Refer to Installing .

Fig 1: Reducing Agent Delivery Unit -2-, Sealing Ring -1-

Courtesy of AUDI OF AMERICA, LLC

-- Stretch the new sealing ring -1- over the heating reservoir and place it on the installation opening.

-- Bring the heating reservoir into the installation position:

The tab -arrow A- on the heating reservoir must fit into the groove -arrow B- on the rim of the opening for the active tank.

-- Install the union nut -2- so that the marking -3- lines up at the beginning of the first thread -4-. The arrow marking -1- on the active tank is found here.

Fig 2: Identifying New Union Nut -2- & Marking -3- Lines Up With First Thread - 4

Courtesy of AUDI OF AMERICA, LLC

CAUTION:

When tightening the union nuts the heating reservoir must not turn.

The installation position of the hearing reservoir must not be turned.

-- First tighten the union unit by hand, then tighten it using the Wrench - Union NutT50014 for a total of ⁵ /₄ turns (450°).

The marking -3- on the union nut -2- must align with the marking -1- (the arrow lines up with the lines on the side).

Fig 3: Marking -3- On New Union Nut -2
Courtesy of AUDI OF AMERICA, LLC

The rest of the installation is performed in reverse order of removal, noting the following:

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

-- Adapt the adaptation value after draining reducing agent or replacing components. Refer to SELECTIVE CATALYTIC REDUCTION- ADAPTATION VALUE, RESETTING .