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Combination valve for the secondary air system: Removing and installing > < Secondary air system: Assembly overview

Leon Mk2

Combination valve for secondary air system Check the function and for leaks
Combination valve for secondary air system Check the function and for leaks
Consult the equivalence table for tools and equipment according to applicability among Seat / VW / Audi / Skoda → Chapter.
Special tools and workshop equipment required
   
t  Manual vacuum pump -VAS 6213-, see equivalent → Anchor
Test prerequisites
l  Vacuum hoses and hose connections do not leak.
l  Vacuum hoses are not clogged.
Checking sequence
  W00-10259
–  Release quick fasteners -arrows- and remove engine cover panel.
  E10-10065
–  Remove the vacuum hose -arrow- on the combination valve.
  Note
For improved understanding, it is shown from the rear in the illustration with engine removed.
–  Connect the hand vacuum pump -VAS 6213- to vacuum connection of combination valve.
  A26-0424
–  Move ring -1- on hand vacuum pump -VAS 6213- to position -B- to select „pressure“.
  N24-10282
–  Release quick-fasteners -1- and -2- and take off front noise insulation.
  A10-1132
–  Detach pressure hose -arrow- from secondary air pump motor -V101- and blow into it with light pressure (do not use compressed air).
l  The combination valve should be closed; it should not be possible to blow through the valve.
–  Build up pressure using the hand vacuum pump -VAS 6213-.
l  The combination valve should open; it should now be possible to blow through the hose.
If the combination valve does not open:
–  Renew combination valve for secondary air system → Chapter.
  A26-0527

Combination valve for the secondary air system: Removing and installing > < Secondary air system: Assembly overview