Throttle body
Throttle body |
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To remove |
1. |
Turn the ignition to the OFF position.
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2. |
Remove the top engine cover.
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3. |
Undo the coolant expansion tank cap to release any pressure and then retighten it.
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4. |
Undo the connector to the pressure/temperature sensor. Remove the turbo delivery pipe complete with bypass pipe and bypass valve.
Man: Undo the venturi hose from the charge air pipe. |
5. |
Remove the cover on the throttle body pedal arm.
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6. |
Detach the hose for the bypass valve.
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7. |
Detach the accelerator pedal wire from the throttle body pedal arm.
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8. |
Remove the rubber seal and undo the limp-home solenoid connector.
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9. |
Unplug the throttle body 10-pin connector.
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10. |
Undo the 3 throttle body retaining screws.
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11. |
Lift up the throttle body, clamp and detach the 2 coolant hoses to the throttle body and detach the hose under the limp-home solenoid.
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12. |
Detach the lower vacuum hose.
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To fit |
Important | ||
The limp-home solenoid will be activated when the ignition is turned on. The limp-home mechanism must therefore be reset after turning on the ignition. |
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1. |
Fit the lower vacuum hose.
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2. |
Fit the coolant hoses and remove the clamps.
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3. |
Position the throttle body and screw it on with the 3 retaining screws. Fit a new seal if necessary and lubricate it with a thin coat of vaseline (part no. 30 20 271).
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4. |
Attach the hose under the limp-home solenoid and fit the clip.
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5. |
Tighten the 3 throttle body retaining screws.
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6. |
Spray the throttle body 10-pin connector with Kontakt 61 (part no. 30 04 520) and plug it in.
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7. |
Spray the limp-home solenoid connector with Kontakt 61 (part no. 30 04 520). Plug in the connector and fit the rubber seal.
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8. |
Fasten the accelerator pedal wire to the throttle body pedal arm.
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9. |
Attach the hose for the bypass valve.
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10. |
Fit the cover on the throttle body pedal arm.
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11. |
Fit the turbo delivery pipe complete with bypass pipe and bypass valve.
Man: Connect the venturi hose. |
12. |
Start the engine and make sure all the connections are tight. Top up with coolant as necessary.
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13. |
Fit the top engine cover.
Tightening torque 10 Nm (7.4 lbf ft) |