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Exhaust gas recirculation system - Engines with identification characters AVU, BFQ > < Secondary air system - Summary of components for engines with identification characters AVU, BFQ

Octavia Mk1

Testing combination valve - Engines with identification characters AVU, BFQ
Testing combination valve - Engines with identification characters AVU, BFQ
l  The hose lines must be tight
Test sequence
  Note
Do not use any compressed air during the test
–  Remove engine covers → Chapter.
   
–  Disconnect the pressure hose -arrow- from the secondary air pump motor -V101-.
  Note
To unlock press together the buttons on the hose coupling.
–  Lightly blow into the hose line to the combination valve:
l  The combination valve must remain closed.
–  Strongly blow into the hose line to the combination valve:
l  The combination valve should open.
If the combination valve does not open or is constantly open:
–  Replace combination valve.
  N26-0523

Exhaust gas recirculation system - Engines with identification characters AVU, BFQ > < Secondary air system - Summary of components for engines with identification characters AVU, BFQ