Glow Plugs

Special tools and workshop equipment required

Hinged Socket 3220 (for glow plugs "1, 3, 4 and 6")
Socket Insert AF 12 for Glow Plugs 4-cyl. TDI CR VAS 6454 (for glow plugs " cylinders 2 and 5")

Removing

-- Turn off the ignition.

-- Remove engine cover. Refer to ENGINE COVER .

NOTE:

For cylinders 3 and 6, the intake manifold flap motor must be removed.

In cylinders 2 and 5, a combustion chamber pressure sensor is integrated in the glow plug.

Electrical component list term: glow plug 2 -Q11- with cylinder 2 combustion chamber pressure sensor -G678-.

Electrical component list term: glow plug 5 -Q14- with cylinder 5 combustion chamber pressure sensor -G681-.

Fig 1: Identifying Glow Plug Versions

Courtesy of AUDI OF AMERICA, LLC

1 - Glow plug with combustion chamber pressure sensor (only installed in cylinders 2 and 5).

2 - Glow plug without combustion chamber pressure sensor.

-- Disconnect glow plug connectors from glow plugs.

-- Clean the glow plug duct in the cylinder head. Contaminants must not enter the cylinder.

NOTE:

Example for cleaning:

Extract large contaminants with a vacuum cleaner.

Spray a brake cleaner or a suitable cleaner into the glow plug shaft, let it work and then use compressed air to remove it.

Then clean the glow plug duct with a cloth dampened with oil.

-- Use the 3220 to loosen the glow plugs "1, 3, 4 and 6".

-- To loosen glow plugs "2 and 5" use the VAS 6454.

-- Then carefully remove the glow plug by hand or with a hose without bending it.

Installing

-- Carefully install the glow plugs by hand or with a hose without bending it.

-- Tighten the glow plugs with 3220 or VAS 6454 to the tightening specification.

-- Connect the glow plug connector and make sure it is secure.

Further installation is performed in reverse order.

Intake manifold flap motor tightening torque - assembly overview, refer to INTAKE MANIFOLD OVERVIEW .