Glow Plugs, Removing And Installing: Removing

-- Switch off ignition.

-- Remove the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .

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: 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 Glow Plug Socket3220 to loosen the glow plugs "1, 3, 4 and 6".

-- To loosen glow plugs "2 and 5" use the Glow Plug SocketVAS6454.

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