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Removing and installing Hall senderG40 > < Glow plugs, Hall sender, engine speed sender - exploded view

A4 Mk3

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-
  W00-0329
t  Pliers -3314-
Removing
–  Switch off ignition.
–  Pull off engine cover panel → Chapter.
–  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.
–  Release retaining clips at wiring harness and detach electrical connectors from glow plugs.
  W00-0019
–  Apply groove -arrow A- of pliers -3314- to collar of support sleeve -arrow B- and pull glow plug connectors off glow plugs.
  Caution
Make sure that no wire connection is damaged when unplugging the glow plug connectors; otherwise the entire wiring harness must be renewed. When unplugging the glow plug connectors, do not compress the pliers -3314- with too much force so that the support sleeve is not damaged.
–  To slacken glow plugs use special tool U/J extension and socket, 10 mm -3220-.
Installing
Installation is carried out in the reverse order; note the following:
l  Tightening torque → Chapter
  M97-0523
–  Fit glow plug connectors -1- back onto glow plugs -arrow-.
  Note
Check that glow plug connectors are securely seated.
  M97-0530

Removing and installing Hall senderG40 > < Glow plugs, Hall sender, engine speed sender - exploded view