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Throttle body

Throttle body

Warning

Be careful if the car is warm. The coolant is hot and there is a risk of burns from the intake manifold.


To remove


1. Turn the ignition switch to OFF.

2. Remove the engine cover.


3. Unscrew the expansion tank filler cap to release the pressure, if any, and then screw it back into place.

4. Detach the turbo pressure pipe from the throttle body.

5. Clamp the two coolant hoses to the throttle body.


6. Disconnect the throttle cable from the throttle body's pedal arm.

7. Unplug the limp-home solenoid's connector.

8. Unplug the throttle body's 10-pin connector.

9. Detach the vacuum hose and the connection to the purge line under the limp-home solenoid.

10. Detach the two coolant hoses from the throttle body.

11. Undo the 3 mounting screws on the throttle body and remove it.



To fit



1. Position the throttle body and screw it on with the 3 mounting screws. Fit a new seal if necessary and apply a thin layer of vaseline.

2. Connect the two coolant hoses to the throttle body.


3. Fit the vacuum hose and connection to the purge line under the limp-home solenoid.

4. Plug in the throttle body 10-pin connector.

5. Plug in the limp-home solenoid connector.

6. Fasten the throttle cable to the throttle body pedal arm.

7. Remove the clamps from the two coolant hoses on the throttle body.

8. Connect the turbo pressure pipe to the throttle body.


9. Start the engine and make sure all the connections are tight. Top up with coolant if necessary.

10. Replace the engine cover.


Spray all connectors with Kontakt 61 contact cleaner (part no. 30 04 520).

Tightening torque 10 Nm (7.4 lbf ft)

Important

If the ignition is turned on while working on the engine, the Limp-home solenoid will be activated. If the ignition is put in position ON, the limp-home mechanism must therefore be reset as described in “Resetting activated limp-home solenoid”.