volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

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Safety precautions > < Removing and installing air filter housing

Polo Mk5

Cleaning throttle valve moduleJ338
Cleaning throttle valve module -J338-
  Note
t  If a new engine control unit is installed the throttle valve module must be adapted. Adaptation must be performed only with a new or cleaned throttle valve module, because soiling or coking at the end stop of the throttle valve can lead to incorrect adaptation values.
t  When cleaning the throttle valve housing it must not be scratched.
–  Remove air filter housing → Chapter.
–  Remove throttle valve module.
   
–  Open throttle valve by hand and lock in open position using a suitable object (e.g. wood or plastic wedge) -arrow-.
  WARNING
Acetone is highly inflammable. Please observe the accidental regulations and safety notes when handling with highly inflammable fluids. Do not use compressed air when cleaning throttle valve. Wear eye protection and protective clothing to avoid eye injuries and skin contact.
  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.
–  Wipe out throttle valve housing with a lint-free cloth.
–  Allow acetone to flash off completely and reinstall cleaned throttle valve module.
–  Adapt engine control unit to throttle valve module → Vehicle diagnostic tester„Guided function“.
  N24-10124

Safety precautions > < Removing and installing air filter housing