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Double non-return valve: check > < Removing and installing throttle valve moduleJ338

Leon Mk2

Cleaning throttle valve moduleJ338
Cleaning throttle valve module -J338-
  Note
t  The throttle valve module must be adapted if a new engine control unit -J623- is installed.
t  Take care not to scratch the throttle valve housing when cleaning it.
–  Remove the throttle valve control unit -J338- → Chapter.
   
–  Open throttle valve by hand and block it in the open position with a suitable object (e.g. plastic or wooden wedge) -arrow-.
  WARNING
Acetone is highly inflammable. Respect the accident prevention regulations and the safety indications when working with highly inflammable liquids. Do not use compressed air to clean the throttle valve. Use protective goggles and clothing to prevent injuries and contact with the skin.
  N24-10125
–  Thoroughly clean throttle valve housing, especially around the closed throttle valve -arrows- using commercially available acetone according to DIN 53247 and a brush.
–  Clean the throat of the throttle valve with a lint free cloth.
–  Wait for the acetone to evaporate completely and then fit the clean control unit.
–  Adapt engine control unit -J623- to throttle valve control unit, → Vehicle diagnostic tester„Guided functions“.
  N24-10124

Double non-return valve: check > < Removing and installing throttle valve moduleJ338