Overview - Reducing Agent Delivery Line

Fig 1: Identifying Reducing Agent Delivery Line

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

1. Reducing Agent Tank
   • Overview, refer to OVERVIEW - REDUCING AGENT TANK .
   • Removing and installing, refer to REDUCING AGENT TANK .
   • Draining, refer to REDUCING AGENT TANK, DRAINING .
2. Reducing Agent Line
   • From the delivery module to the coupling point on the underbody
   • With Reducing Agent Line Heater (Heating Circuit 2) -Z104-
   • Overview, refer to OVERVIEW - REDUCING AGENT DELIVERY LINE .
   • Disconnecting the connector, refer to Fig 2
3. Reducing Agent Line
   • From the coupling point on the underbody to the Reducing Agent Injector -N474-
   • with Reducing Agent Line Heater (Heating Circuit 2) -Z104-
   • Overview, refer to OVERVIEW - REDUCING AGENT DELIVERY LINE .
   • Disconnecting the connector, refer to Fig 2
4. Reducing Agent Injector -N474-
   • Removing and installing, refer to REDUCING AGENT INJECTOR -N474- .
5. Clamp
   • 5 Nm
   • Replacing
6. Reducing Agent Connector
   • Refer to Fig 2
7. Delivery Line Connector
   • For the Reducing Agent Line Heater (Heating Circuit 2) -Z104-
8. Mount
   • On the right underbody

Fig 2: Pressing Securing Clip Then Remove Delivery Line

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Push the reducing agent clip -1- together as shown in the direction of the -arrow 1-.

-- Remove the delivery line in the direction of -arrow 2- without special equipment and without >>sharply pulling<< on it.

-- To catch escaping reducing agent place a clean cloth under the separation point.

-- Seal all the open lines and connections with clean plugs from the Engine Bung Set VAS 6122.