volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Renewing seals on injectors > < Injectors
Removing and installing injectors
Removing and installing injectors
Note safety precautions before beginning work → Chapter.
  Note
Teflon seal on injector must be renewed each time after removing injector → Chapter.
Special tools and workshop equipment required
   
t  Torque wrench -V.A.G 1331-
  W00-0427
t  Tool set -T10133-
Removing
–  Remove coolant hose from guide on pressure pipe.
–  Unscrew bolts -1- and remove retaining clip.
  W00-1258
–  Pull connector -2- off charge air pressure sender -G31- with intake air temperature sender 2 -G299-.
–  Unlock catches in -direction of arrow- and pull pressure pipe -3- first off throttle valve module -J338- and then off turbocharger.
–  Remove high-pressure pump → Chapter.
  N15-10561
–  Remove bolts -arrows- and pull fuel rail off injectors.
  N15-10563
–  Press the O-ring upwards by hand as shown, and remove it from the injector.
–  Screw slide hammer -T10133/3- to puller -T10133/15-.
  N24-10197
–  Then insert puller -T10133/15- into groove -arrow- on injector.
  N24-10292
–  Pull injector out by tapping carefully.
Installing
  N24-10361
–  Thoroughly clean injector holes in cylinder head using nylon brush -T10133/4-.
–  Check plastic support washer for damage, renew if necessary → Chapter.
  N24-10198
–  Renew spring element -arrow- and Teflon seal each time the injectors are removed → Chapter.
–  Install new O-rings for injectors and coat lightly with clean engine oil.
  Note
The Teflon seal on the injector must not be oiled or greased.
–  Push injector into cylinder head bore to stop by hand.
  Note
The injector must insert easily. If necessary wait until the seal has contracted sufficiently.
–  Ensure correct position of injectors in cylinder head.
  N24-10216

Renewing seals on injectors > < Injectors