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Home >> BMW >> 2017 >> X3 sDrive28i >> Repair and Diagnosis >> External Pages >> Different car >> Section 373 (Fuel Supply System - Repair) >> SCR Technology >> 16 19 005 Removing and installing/replacing metering line for Selective Catalytic Reduction (SCR)

16 19 005 Removing and installing/replacing metering line for Selective Catalytic Reduction (SCR)

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: 

Release screws (1).

Installation note: 

Tightening torque: 41 35 10AZ .

Fig 1: Identifying Selective Catalytic Reduction Screws
G06913534Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Unclip line on module carrier (2).

Fig 2: Identifying Module Carrier Line And Plug Connection
G06913535Courtesy of BMW OF NORTH AMERICA, INC.

Slacken nut (1).

Installation note: 

Tightening torque: 41 35 11AZ .

Tilt side panel outwards a little.

Raise outer module carrier (2) and feed out in downward direction.

Fig 3: Lifting Module Carrier
G06913536Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Picture shows engine and transmission removed for purposes of clarity.

Remove heat insulation (1).

Fig 4: Identifying Heat Insulation
G06913537Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Do not kink metering line (1).

Unclip metering line (1) from holders (2).

Fig 5: Identifying Metering Line And Holders
G06913538Courtesy of BMW OF NORTH AMERICA, INC.

Unclip metering line (1) from holder (2).

Remove metering line (1).

Fig 6: Identifying Metering Line And Holder
G06913539Courtesy of BMW OF NORTH AMERICA, INC.