16 19 045 Drawing off SCR passive tank content

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Special tools required:

IMPORTANT: Ensure adequate ventilation in the workbay!
Avoid skin contact (wear gloves)!
Avoid eye contact (safety goggles)!
Urea/water mixture can escape when components carrying urea/water mixture are released. Have a collecting vessel ready.
Observe country-specific waste disposal regulations.

IMPORTANT: Maintain conditions of absolute cleanliness.
Connections and covers of lines carrying urea/water mixture must be cleaned thoroughly with water after each removal or before each installation!
Thoroughly clean the working area with water after repair work.
Use fluff-free cloths for cleaning.
Close connections and lines!
Thoroughly clean special tool with water after each use.

Necessary preliminary work:

Remove rear right WHEEL ARCH PANEL .

Clamp off hose between passive tank and transfer pump (1) with hose clip (2).

Release hose clamp (3) and pull off hose (1) from transfer pump.

Installation note:

Replace hose clamp (3).

Fig 1: Pulling Hose From Transfer Pump

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Use extractor unit 2 302 782 (for 230V) or 2 302 919 (for 120V).
Attach adaptor hose 2 355 173 to the intake side of the extractor unit.
Before start-up of extractor unit urea/water mixture:
Comply with equipment manufacturer's operating instructions and safety regulations.
Note extraction direction (see arrow)!

Fig 2: Identifying Adaptor Hose (2 355 173)

Courtesy of BMW OF NORTH AMERICA, INC.

Connect adapter hose 2 355 173 of extractor unit on hose.

Remove hose clip (1).

Draw off urea/water mixture.

NOTE: Do not reuse drawn-off urea/water mixture.

Fig 3: Connecting Adapter Hose (2 355 173)

Courtesy of BMW OF NORTH AMERICA, INC.