AdBlue(R) Delivery Module

AdBlue(R) Delivery Module

• The Nitrogen Oxide (NOx) reducing agent AUS 32 is known as AdBlue(R).

CAUTION!
• The AdBlue(R) can irritate skin, eyes and the respiratory system.

• If the fluid comes into contact with skin, rinse the affected area immediately with plenty of water.

• Consult a physician if necessary.

Special tools, testers and auxiliary items required

• Torque Wrench (5-50 Nm) (V.A.G 1331)

• Torque Wrench (40-200 Nm) (V.A.G 1332)

• Engine/Transmission Jack (V.A.G 1383 A)

• Special Wrench (T50014)

Removing

- Remove the AdBlue(R) tank. Refer to => [ AdBlue(R) Tank ] AdBlue(R) Tank.

CAUTION!
Protect the connectors, for example with a plastic bag and cable tie, before using AdBlue(R). The electrical connectors can be damaged because the AdBlue(R) has a tendency to seep and it crystallizes as it dries.

- Disconnect the ventilation line - arrow -.





- Remove the bolts - A - and remove the AdBlue(R) pump (V437) upward.

- Cut off the cable ties - arrows - on the locking ring.





- Disconnect the connector - arrow - from the right side of the AdBlue(R) tank.





- Disconnect the connector - arrow - from the AdBlue(R) reservoir processing unit (G698).





- Place the (T50014) on the locking ring as illustrated and remove it.

CAUTION!
The cover may only be tilted a maximum of 30° after opening it. This prevents damage to the wires and the suction line inside the delivery module.

- Open the delivery module cover, using (3409) if necessary.

- Carefully reach into the delivery module chamber and turn it counterclockwise to loosen it from its retainer.

- Remove the delivery module upward from the AdBlue(R) tank.

Installing

- Place the seal - item 9 -=> [ Seal ] AdBlue(R) Delivery Module Assembly Overview in the AdBlue(R) tank opening.

- Insert the delivery module into the AdBlue(R) tank according to the marks - A -. The marks - A - must align when inserting the module.





- Carefully reach into the delivery module chamber and rotate it clockwise to secure it. The marks - B - will align when it is installed correctly.





- Lubricate the sealing base on the cover with water and carefully press it into the seal. The marks - 1 - must align.





- Set the seal in place and tighten it by hand.

CAUTION!
Make sure the seal is not installed crooked on the AdBlue(R) tank threads. Otherwise it will leak and result in serious corrosion damage.

- Place the (T50014) on the locking ring as illustrated and tighten it. Tightening specifications, refer to - item 7 -=> [ Locking Ring ] AdBlue(R) Delivery Module Assembly Overview.





- Wash any leaking AdBlue(R) off with water.

The rest of the installation is basically a reverse of the removal sequence.