Throttle Body: Service and Repair

WM 244219 Removing and installing throttle housing

Preliminary work

1. Loosen air box in front of the throttle housing. For details, see -> 243519 Removing and installing air box for throttle housing (intake ports upstream of throttle valve) Service and Repair

Removing throttle housing





Intake module on naturally aspirated engine









Intake air module on turbo engine





1. Pull off cable plugs on the throttle housing and pull cable out of the clip.
2. Loosen the four screws on the throttle housing -arrows-. Remove the throttle housing.





Loosening throttle adjuster

3. Check the condition of the sealing ring. Replace sealing ring if necessary => Sealing ring on throttle housing.





Sealing ring on throttle housing

Installing throttle housing

Information

The tightening specifications for the basic engine are stored centrally. -> 1001IN Tightening torques, tightening sequences, assembly overviews [1][2]Specifications. Tightening torques and assembly instructions for other affected assemblies (e.g. chassis, electrics, transmission or body) or for peripheral engine equipment can be found in the corresponding documents.





Intake module on naturally aspirated engine









Intake air module on turbo engine





1. Check the condition of the sealing ring. Replace sealing ring if necessary => Sealing ring on throttle housing.





Sealing ring on throttle housing

2. Move throttle housing into installation position and secure it. Position and fit four screws -arrows-.





Throttle adjuster mount

3. Fit cable plugs on the throttle housing and insert cable into the clip.

Subsequent work

Information

- The new throttle valve must be taught when replacing the throttle valve.

- Conditions: The vehicle is stationary, engine is off, engine temperature is between 5 and 100°C, intake air temperature is more than 5°C, battery voltage is at least 9 volts

- After replacing the throttle valve, switch on the ignition - but do not press the accelerator pedal - and wait for one minute.

1. Fit air box in front of the throttle housing. For details, see -> 243519 Removing and installing air box for throttle housing (intake ports upstream of throttle valve) Service and Repair