Throttle Body: Service and Repair

Removing And Installing Throttle Body - Engine Installed

Removing throttle body

1. Remove air cleaner housing.
2. Pull off the pressure hoses between the charge air coolers and the Y-shaped pressure pipe. To do this, unclip the retaining clips using a screwdriver and pull out the hose. Refit the retaining clips immediately.
3. Detach the holder over the air-conditioning compressor. Unscrew the M6 screw on the holder for this purpose.
4. Undo the hose of the Y-shaped pressure pipe. To do so, undo the spring band clamp -arrow- and pull the hose off the Y-shaped pressure pipe.







5. Remove the Y-shaped pressure pipe. To do so, undo the spring band clamp -3- and the hexagon-head bolts -1 and 2-. Disconnect pressure sensor plug -4-.







6. Undo the rubber air cowl between the pressure pipe and the throttle body. To do so, open the screw-type hose clamp on the throttle body side and remove the rubber air cowl.
7. Disconnect the connector at the throttle potentiometer -top arrow- and unscrew the four M6 screws -arrows-.







8. Remove the throttle body.

Installing throttle body

NOTE: Always replace the seal between the intake distributor and the throttle body.

1. Insert seal into the intake distributor.
2. Position the throttle body on the intake distributor and position and tighten the four M6 screws -arrows-.
Tightening torque of M6 screws = 10 Nm (7.5 ftlb.)







3. Position the Y-shaped pressure pipe with the rubber air cowl on the throttle body, connect the vacuum hose -3- and fasten the spring band clamp. Connect the connector of the pressure sensor -4- and position and tighten the M6 screws -1 and 2-.
Tightening torque of M6 screws = 10 Nm (7.5 ftlb.)







4. Install the holder over the air-conditioning compressor. Position and tighten the M6 screw in the holder for this purpose.
Tightening torque of M6 screw = 10 Nm (7.5 ftlb.)
5. Connect hose to the Y-shaped pipe and fasten with the spring band clamp -arrow-.







6. Install the pressure hoses between the charge air coolers and the Y-shaped pressure pipe; the pressure hoses must engage audibly.
7. Install air cleaner housing.