Reducing Agent Tank, Filling

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Special tools and workshop equipment required

AdBlue® Filling Tool :VAS 6542

Fig 1: Adblue(R) Filling Tool VAS 6542
Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
Engine-Transmission Jack :VAG 1383 A

Fig 2: Engine & Transmission Jack VAG 1383 A
Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
Adapter Plate :VAG 1383 A1

Fig 3: Adapter Plate VAG 1383A-1
Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

AdBlue® Filling Tool Components:VAS 6542

Fig 4: AdBlue(R) Filling Tool VAS 6542 Components

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Bleed line on the reducing agent bottle
Reducing agent bottle union nut
Vent hose shut-off valve (when the ball valve is open, the lever points in the same direction as the hose; when the shut-off valve is closed, the lever is perpendicular to the hose)
Quick-release coupling on the vent hose
Filling hose
Filling hose shut-off valve (when the ball valve is open, the lever points in the same direction as the hose; when the shut-off valve is closed, the lever is perpendicular to the hose)
Tank filler neck union nut
Vent hose

CAUTION:

The lines on the AdBlue® Filling Tool :VAS 6542 must never be bent or blocked. The vent hose rotates 360 °C making it easier to use.

Perform the following work in the sequence given:

-- Open the tank.

-- Clean the tank filler neck for the "reducing agent" with a damp lint-free cotton cloth.

-- Close the shut-off valves on the vent and filling hoses on the AdBlue® Filling Tool :VAS 6542 .

-- Place the AdBlue® Filling Tool :VAS 6542 on the reducing agent bottle and tighten it: refer to the Electronic Parts Information.ETKA).

-- Position the reducing agent bottle onto the Engine/Transmission Jack:VAG 1383 A using the Adapter Plate:VAG 1383 A1 . The difference in height between the reducing agent bottle and the tank filler neck must somewhere be between 60 - 80 cm -dimension A-.

Fig 5: AdBlue(R) Fill/Refill Tool Assembly

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Attach the AdBlue® Filling Tool :VAS 6542 onto the filler tube and screw it in all the way.

Fig 6: Filling Tool VAS 6542

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Open the vent hose shut-off valve.

-- Open the filling hose shut-off valve. The reducing agent tank is full when:

it is noticeable that the bottle is not contracting and expanding
The bleed line fills with fluid.

NOTE:

If the contains gets completely empty during the filling process, repeat the pervious steps.

-- Close the filling hose shut-off valve on the tank.

-- Close the bleed hose shut-off valve on the bottle.

-- Open the quick-release coupling on the bleed line and drain any remaining fluid into a suitable container.

-- When the reducing agent stops coming out of the vent hose, remove the AdBlue® Filling Tool :VAS 6542 from the tank filler neck.

-- Clean the tank filler neck and cap with the damp lint-free cotton cloth.

-- Close the cap.

-- Remove the bottle from the adapter plate and lay it on the floor.

-- Open the filling hose shut-off valve and drain any reducing agent still in the bottle.

-- Remove the AdBlue® Filling Tool :VAS 6542 from the bottle.

-- After filling, the reducing agent tank learned values must be adapted so the new level is detected. Refer to REDUCING AGENT TANK LEARNED VALUES, ADAPTING .