16 19 130 Removing and installing/replacing pump unit

WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

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 side right UNDERBODY PANELLING .

Release plastic nuts (1).

Installation note:

Check plastic nut, replace if necessary.

Tightening torque: 16 19 1AZ .

Disconnect plug connection (2).

Remove pump unit (3) from body.

Fig 1: Identifying Pump Unit, Plug Connection And Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect SCR filter (1) on pump unit (2).

Disconnect line (3).

Remove pump unit (2).

Installation note:

Secure SCR filter (1) on pump unit (2).

Check by pulling engagement of SCR filter (1).

Secure pump unit (2) to body.

Fig 2: Identifying SCR Filter, Pump Unit And Line

Courtesy of BMW OF NORTH AMERICA, INC.

Connect urea/water mixture extractor unit to connection (1).

IMPORTANT: Do not pressurize urea/water mixture extractor unit.

With aid of BMW Diagnosis and Information System:

Activate pump unit until urea/water mixture flows through suction line

Connect line to connection (1) and check correct seating by pulling.

Fig 3: Identifying Urea/Water Mixture Extractor Unit Connection

Courtesy of BMW OF NORTH AMERICA, INC.