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Engine control unitJ623 (Golf, Eos) > < Checking vacuum reservoir in intake manifold for leaks

Golf Mk5

Checking intake air preheating
Checking intake air preheating
Special tools and workshop equipment required
t  Chilling spray (commercially available)
Checking regulating flap
–  Remove air intake connecting piece of air filter.
   
–  Check regulating flap position -1-.
–  Spray thermal element -2- with chilling spray.
t  Above +23 °C, flap must close warm air connection.
t  Below +10 °C, flap opens warm air connection.
  Note
The function of the thermal element can be checked simply by spraying with commercially available chilling spray. The lower part of the air filter must be removed for this purpose → Chapter.
  N24-1490

Engine control unitJ623 (Golf, Eos) > < Checking vacuum reservoir in intake manifold for leaks