12 23 505 Replacing all glow plugs (M57/M57TU/M47TU/M47T2/M57T2)

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.

Special tools required:

NOTE: Read out fault memory of DDE control unit (DDE = Digital Diesel Electronics).

Switch off ignition.

If malfunctions occur at the glow elements, it is absolutely essential to check the fuses behind the glovebox.

For further troubleshooting information refer to the BMW diagnosis system.

NOTE: Bring the engine to operating temperature for easier removal of the glow elements. In addition, spray the glow elements with the REMOVAL AGENT 5.1 and let sit for about 2 minutes. If glow elements are removed from a cold engine, the thread in the cylinder head may be damaged.

IMPORTANT: Risk of burning! Wearing gloves is mandatory!

Necessary preliminary work:

Disconnect battery earth lead.
Remove intake plenum.

Release connector (1) with special tool 12 2 300 and remove.

Fig 1: Releasing Connector With Special Tool 12 2 300

Courtesy of BMW OF NORTH AMERICA, INC.

Release glow elements (1) with special tool 11 6 050 .

Tightening torque: 12 23 2AZ .

NOTE: If applicable, drill out the special tool 11 6 050 with a twist drill Ø 9.5 mm approximately 20 mm deep.

Fig 2: Releasing Glow Elements With Special Tool 11 6 050

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Different glow elements in M47 and M47TU engines!

M47 glow elements (1) without designation groove.

M47TU rapid start glow elements (2) with designation groove and silver surface.

Fig 3: Identifying M47 Glow Elements

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Check stored fault messages.
Delete fault memory.