16 19 050 Removing and installing/replacing passive reservoir

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:

DRAW OFF UREA/WATER MIXTURE
Remove UNDERBODY PANELLING at side right and left
Remove tank UNDERRIDE PROTECTION on left
Release EXHAUST SYSTEM at front intake pipe

Remove heat shields (1).

Fig 1: Identifying Heat Shields

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect hose (1) from passive reservoir (2).

Installation note:

Check by pulling locking of hose pipe (1).

Fig 2: Identifying Passive Reservoir And Hose Pipe

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Unclip wiring harness (2).

Unscrew nuts (3).

Installation note:

Tightening torque: 16 19 7AZ .

Fig 3: Identifying Wiring Harness, Plug Connection And Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect ventilation line (1).

Installation note:

Check by pulling locking of ventilation line (1).

Release hose clamp (2) and detach filler hose.

Installation note:

Replace hose clamp.

Tightening torque: 16 19 9AZ .

Fig 4: Identifying Ventilation Line And Hose Clamp

Courtesy of BMW OF NORTH AMERICA, INC.

Secure passive reservoir (1) against falling off.

Unscrew nuts (2).

Installation note:

Tightening torque: 16 19 8AZ .

Remove tensioning strap (3) and remove passive reservoir (1).

Replacement:

Modify wiring harness
Modify heat insulation

Fig 5: Identifying Passive Reservoir, Tensioning Strap And Nuts
Courtesy of BMW OF NORTH AMERICA, INC.