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Routing the engine wiring harness > < Intake system: Checking for leaks (unmetered air)

Leon Mk2

Checking intake air preheating: checking
Checking intake air preheating: checking
Checking regulating flap
–  Remove air filter intake tube.
   
–  Check control flap position -1-.
t  Above +23 °C, the flap must close warm air connection
t  Below +10 °C, the flap opens warm air connection
  Note!
The functioning of the thermo element -2- can be checked easily by spraying with a commercial chilling agent.
  N24-0317

Routing the engine wiring harness > < Intake system: Checking for leaks (unmetered air)