Throttle Body: Service and Repair

WM 244219 Removing and installing throttle body

Technical values





Preliminary work for removing throttle body

1. Place protective covers on the vehicle to avoid damaging the body.
2. Remove engine compartment lid. -> 557819 Removing and installing engine compartment lid

Removing throttle body

1. Remove hose for oil separator. To do this, disengage and remove rapid-action couplings -arrows-.
2. Undo four screw-type hose clamps -1- on distributor pipe.





Distributor pipe

3. Unscrew hexagon nut (M6) -arrow-.





Fastening for distributor pipe

4. Undo spring band clamp and pull off hose -2-.
5. Undo spring band clamp -1- on the rubber sleeve of the hot-film mass air flow meter.





Throttle body

6. Move rubber sleeves in the direction of the intake-air distributor.
7. Remove throttle housing and distributor pipe and turn upwards.
8. Release cable plug -2- on electronic throttle adjuster and remove it.
9. Unclip wire -3-.
10. Pull off vacuum line -1- on vacuum modulator.





Connector for throttle housing

11. Unscrew four Torx screws (M6 x 50) -arrows- on throttle housing.





Screws for throttle housing

Installing throttle body

1. Replace sealing ring -arrow-. Coat sealing ring lightly with Optimol MP3 assembly grease.





Sealing ring for throttle body

2. Position four Torx screws (M6 x 50) -arrows- and tighten them.=> Tightening torque: 7.5 ftlb.





Screws for throttle housing

3. Connect vacuum line -1- on vacuum modulator.
4. Clip wire -3- into the cable holder.
5. Connect cable plug -2- on electronic throttle adjuster.





Connector for throttle housing

6. Position throttle housing between the intake-air distributors.
7. Push on rubber sleeves.
8. Push rubber sleeve from hot-film mass air flow meter pipe to throttle valve.
9. Tighten screw-type hose clamp -1-.
10. Push on hose -2- and tighten using the spring band clamp.





Throttle body

11. Position and tighten hexagon nut (M6) -arrow-.=> Tightening torque: 7.5 ftlb.





Fastening for distributor pipe

12. Position and tighten four screw-type hose clamps -1- on rubber sleeves.





Installation position for intake-air distributor screw-type hose clamps

13. Attach hose for positive crankcase ventilation on oil separator and distributor pipe.





Distributor pipe

Work subsequent to installing throttle body

1. Install engine compartment lid -> 557819 Removing and installing engine compartment lid.
2. Read out fault memory and correct any faults that are present. Erase fault memory -> 033500 On-board diagnosis (OBD) 033500 On-board diagnosis (OBD).