Removing
1. Disconnect the vacuum hose (arrow) from the vacuum brake booster.
2. Loosen the clamps (1) And (2). after that, disconnect the air pipe, as shown in the figure below.
3. Disconnect the hose (1) And (2) on the pressure pipe, as shown in the figure below.
4. Unplug wiring harness connector at charge pressure sender -G31- with intake air temperature sender 2 -G299 - (4), unscrew the fastening screws (3), shown in the figure below.
5. Move the clips upwards outwards (1), divert pressure pipe (2) up as shown in the figure below.
6. The pressure pipe must then be removed (2) complete with turbocharger.
7. Disconnect the wiring harness connector (1) from the throttle valve module -J338- as shown in the figure below.
8. Unscrew the screws shown in the figure below (2), remove throttle module (3) from the intake manifold.
Installation
1. Place a new O-ring in the intake manifold groove.
2. Install the throttle cuff module (3) together with an adapter (2) and fixing screws (1) to the intake manifold (4), as shown in the figure below.
3. Tighten fixing screws (2) with a tightening torque of 7 Nm.
4. Connect the wiring harness connector (1) to throttle module (3), as shown in the figure below.
Note. Lightly lubricate the O-rings on the turbocharger and in the pressure pipe with engine oil before proceeding with installation.
5. Install pressure pipe (2) to the turbocharger.
6. Press on the pressure pipe (2) to the throttle module as shown in the figure below. Retaining clips (1) at the same time, they should enter with a click into a fixed position.
7. Install and tighten the fastening screws (3) mounting clamp with a tightening torque of 7 Nm.
8. Connect wiring harness connector to charge pressure sender -G31- with intake air temperature sender 2 -G299-.
9. Connect hoses (1) And (2) to the holders on the discharge pipe, as shown in the figure below.
10. Install the top decorative engine cover.
When installing a new throttle module
11. Reset the learned values and adapt the electronic engine control unit -J623- to the throttle valve control.