Overview - Reducing Agent Tank: Notes

WARNING: This page is about a different car, the 2015 Volkswagen Golf. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Exploded View Of Reducing Agent Tank Components

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Nut
- 2 Nm
Cover
- For fuel tank for the reducing agent
Bolt
- 5.75 Nm
Grommet
Spacer Sleeve
Delivery Module
- With:
  - Reducing Agent Pump -V437-
  - Reducing Agent Return Flow Pump -V561-
- Delivery Module, Removing and installing. Refer to REDUCING AGENT DELIVERY MODULE, REMOVING AND INSTALLING .
Seals
- Always replace after removing.
Bolt
- 25 Nm
Heat Shield
Reducing Agent Tank
- With:
  - Reducing Agent Temperature Sensor -G685-
  - Reducing Agent Reservoir Sensor -G697-
  - Reducing Agent Quality Sensor -G849-
  - Reducing Agent Tank Heater (Heating Circuit 1) -Z102-
  WARNING:
  Danger due to reducing agent leaking out.
  - To prevent large amounts of reducing agent from leaking out when opening the metering line, wait for the automatic reducing agent recirculation process to complete. Refer to SAFETY PRECAUTIONS WHEN WORKING ON SCR SYSTEM - REDUCING AGENT, AUTOMATIC RECIRCULATION .
- Component Location: at the height of right side of the luggage compartment under the underbody.
- Removing and installing. Refer to REDUCING AGENT TANK, REMOVING AND INSTALLING .
Reducing Agent Heater Control Module -J891-
- Removing and installing. Refer to Reducing Agent Heater Control Module -J891-, REMOVING AND INSTALLING .
Wiring Harness
Filler Neck
- For SCR-filling
  WARNING:
  Danger due to reducing agent leaking out.
  - To prevent large amounts of reducing agent from leaking out when opening the metering line, wait for the automatic reducing agent recirculation process to complete. Refer to SAFETY PRECAUTIONS WHEN WORKING ON SCR SYSTEM - REDUCING AGENT, AUTOMATIC RECIRCULATION .
Bolt
- 25 Nm
Metering Line
- From the reducing agent delivery module to the Reducing Agent Injector -N474-.
- With Reducing Agent Line Heater (Heating Circuit 2) -Z104-
- To disconnect, press release buttons
- Clipped in on fuel tank
  WARNING:
  Danger due to reducing agent leaking out.
  - To prevent large amounts of reducing agent from leaking out when opening the metering line, wait for the automatic reducing agent recirculation process to complete. Refer to SAFETY PRECAUTIONS WHEN WORKING ON SCR SYSTEM - REDUCING AGENT, AUTOMATIC RECIRCULATION .