volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Checking functions > < Checking intake air system for leaks (unmetered air)
4CV fuel injection and ignition system
Checking components
Checking intake air preheating

Special tools, workshop equipment, testers, measuring instruments and auxiliary items required

  • ◆ Chilling spray (commercially available)

Checking regulating flap

  • ‒ Remove air cleaner intake support.
 
N24-0324
  • ‒ → Check control flap position -1-.
    • ‒ Above +23 °C flap must close warm air connection
    • ‒ Below +10 °C flap opens warm air connection

Note:

The function of the thermo element -2- can be checked easily by spraying with a commercial chilling agent.

Checking functions > < Checking intake air system for leaks (unmetered air)