AdBlue(R) Active Tank, Draining

AdBlue(R) Active Tank, Draining

Special tools, testers and auxiliary items required

• Engine Bung Set (VAS 6122)

• Drip tray

Procedure

Follow all safety precautions => [ Observe the following when working on the reducing agent metering system: ] Safety Precautions.

Follow the guidelines for cleanliness. Refer to => [ Clean Working Conditions ] Clean Working Conditions.

- On a vehicle with air suspension, activate vehicle lift mode.

- Remove the right rear wheel housing liner.

• Place a clean cloth under the separating location to catch any reducing agent that may leak out.

• Seal off all open lines and connections with clean plugs.

The reducing agent can cause skin irritation.

• Avoid contact with skin and eyes! Always wear protective gloves and safety glasses.

• If reducing agent should get on your skin, wash it off immediately with soap and water.

• If reducing agent gets in your eye, rinse the eye for several minutes with water.

• Never inhale or swallow the reducing agent!

• Should you swallow any reducing agent, rinse your mouth, drink plenty of water and contact a doctor immediately.

- Disconnect the return line - 1 - on the reducing agent delivery unit by pressing the release button.






- Attach an extension hose - 2 - to the reducing agent delivery unit connection - arrow - and drain the reducing agent into the container.

- Open the fuel tank flap.






- Remove the locking cap - 2 - from the reducing agent filler tube.

• Ignore - 1 -.

- Drain the reducing agent inside the active tank as far as possible into the drip tray using a hose.

- Seal the open lines and connections with clean plugs from the (VAS 6122).

After Filling, the following Steps must be Performed:

- Adapting adaptation value after draining AdBlue(R) or replacing components. Refer to => [ Adapting Adaptation Value after Draining AdBlue(R) or Replacing Components ] Testing and Inspection.