Glow Plugs: Removing

WARNING: This page is about a different car, the 2014 Audi A8 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

-- Turn off the ignition.

-- Remove the engine cover. Refer to ENGINE COVER .

NOTE:

The glow plug for cylinder 2 may have combustion chamber pressure sensor depending on the exhaust gas standard.

Electrical component term: Glow Plug 2 -Q11- with Cylinder 2 Combustion Chamber Pressure Sensor -G678-

Fig 1: Glow Plug Versions

Courtesy of AUDI OF AMERICA, LLC

1 - Glow plug with combustion chamber pressure sensor (installed only in cylinder 2)

2 - Glow plug without combustion chamber pressure sensor

-- Disconnect the connectors from the glow plugs.

-- Clean the glow plug channel so that no dirt can get into the cylinder.

-- Clean the glow plug duct in the cylinder head (contaminants must not fall into 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 rag dampened with oil.

WARNING:

Danger of eye injury.

Wear protective eyewear.

-- Loosen the glow plugs with the special tool.

-- Then carefully remove the glow plugs by hand or with a hose without bending them.