Reducing Agent Delivery Line, Removing And Installing: Removing

WARNING: This page is about a different car, the 2012 Volkswagen Touareg and 2011 Volkswagen Touareg. However, it is still accessible from the selected car via links, so may be relevant.

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

-- Remove the left underbody trim panel. Refer to OVERVIEW - UNDERBODY TRIM PANELS .

-- Loosen the heat shield from the particulate filter.

-- Fold the upper section of the delivery line clips in the direction of the -arrow- and remove them.

Fig 1: Fold The Upper Section Of The Delivery Line Clips In The -Direction Of The Arrow

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Unclip the delivery line over the rear axle and at the particulate filter heat shield from the retainers.

CAUTION:

Protect the connectors, for example with a plastic bag or cable ties, before coating with reducing agent. The connectors could be damaged because the reducing agent has a tendency to seep and it crystallizes.

-- First press the securing clip of the wire connection on the Reducing Agent Injector -N474- as shown in the direction of -arrow 1- and then remove the delivery line in the direction of -arrow 2- without using tools and without pulling sharply.

Fig 2: Press The Securing Clip Then Remove The Delivery Line In The -Direction Of Arrow 2

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Remove the delivery line -arrow- from the Reducing Agent Injector -N474-.

Fig 3: Identifying Delivery Line -Arrow- On Reducing Agent Injector

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

CAUTION:

Seal the openings on the lines immediately with plugs to prevent contaminants from entering. Even tiny particles can cause serious damage to the system.

CAUTION:

The delivery line is preformed and equipped with a heating element that covers the entire length of it. Do not bend, twist or stretch the line. Otherwise the heating element and the line will be damaged.

-- Carefully guide the delivery line out over the particulate filter heat shield.

-- Carefully guide the delivery line connection out over the rear axle or the subframe in the direction of travel.