Procedures

Throttle Valve Control Module, Cleaning

Special tools, testers and auxiliary items required

• Acetone

• Follow all safety precautions. Refer to => [ Safety Precautions ] Safety Precautions.

• Pay attention to the rules of cleanliness. Refer to => [ Clean Working Conditions ] Clean Working Conditions.

• The throttle valve must not be damaged when cleaning.

Procedure

- Remove the throttle valve control module. Refer to => [ Throttle Valve Control Module (J338) ] Removal and Replacement.

- Open the throttle valve by hand and hold it in the open position with a suitable object - arrow -.







Acetone is easily flammable. Observe accident prevention measures and safety information when working with easily flammable fluids. Do not used compressed air when cleaning the throttle valve. Always wear protective eye-wear and protective clothing to prevent injuries and fuel from coming in contact with your skin.

- Clean the throttle valve, especially in area of contact on a closed throttle valve - arrows -, with standard acetone and a brush.






- Wipe the throttle valve connections with a lint free cloth.

- Allow the acetone to dry completely and reinstall the cleaned throttle valve control module.

- Adapt the Engine Control Module (ECM) to throttle valve control module. Refer to "Guided functions" in the vehicle diagnosis, testing and information system VAS 5051.