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4-cylinder direct petrol injection engine (2.0 ltr. 4-valve), mechanics > < Checking glow plugs

A4 Cabriolet Mk2

Removing and installing glow plugs
Removing and installing glow plugs
Special tools and workshop equipment required
   
t  U/J extension and socket, 10 mm -3220-
Removing
–  Switch off ignition.
–  Detach glow plug connectors from glow plugs.
–  Clean glow plug openings in cylinder head; make sure no dirt gets into cylinder.
  Note
t  Cleaning procedure:
t  Use a vacuum cleaner to remove coarse dirt.
t  Spray brake cleaner or suitable cleaning agent into glow plug openings, let it work in briefly, and blow out with compressed air.
t  Then clean the glow plug openings using a cloth moistened with oil.
  W00-0329
–  To slacken the glow plugs use special tool U/J extension and socket, 10 mm -3220-
Installing
  Note
Before installing, coat threads of glow plugs with high-temperature paste → Parts catalogue, servicing materials.
–  To tighten the glow plugs use special tool U/J extension and socket, 10 mm -3220- with a suitable torque wrench.
Tightening torque: 18 Nm
–  Attach glow plug connectors correctly and make sure they are securely fitted.
  W00-0329

4-cylinder direct petrol injection engine (2.0 ltr. 4-valve), mechanics > < Checking glow plugs