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 upper 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. |
Remove the cover on the throttle body pedal arm.
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5. |
Pinch together the 2 coolant hoses to the throttle body.
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6. |
Undo the charge air bypass valve hose and the two preheating hoses.
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7. |
Detach the lower vacuum hose.
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8. |
Undo the turbocharger delivery pipe retaining screw in the cylinder head.
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9. |
Undo the hose clip and carefully tilt up the turbocharger delivery pipe.
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10. |
Detach the accelerator pedal wire from the throttle body pedal arm.
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11. |
Lift off the rubber seal and unplug the limp-home solenoid connector.
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12. |
Unplug the throttle body 10-pin connector.
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13. |
Undo the 3 throttle body retaining screws.
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14. |
Lift up the throttle body and detach the hose under the limp-home solenoid.
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To fit |
1. |
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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2. |
Fit the hose under the limp home solenoid and fit the clip.
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3. |
Tighten the 3 throttle body retaining screws.
Tightening torque up to and including engine no. 7011078: 10 Nm (7 lbf ft) Tightening torque from and including engine no. 7011079: 8 Nm (6 lbf ft) |
4. |
Spray the throttle body 10-pin connector with Kontakt 61 (part no. 30 04 520) and plug it in.
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5. |
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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6. |
Fasten the accelerator pedal wire to the throttle body pedal arm.
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7. |
Fit the lower vacuum hose.
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8. |
Fit the charge air bypass valve hose and the two preheating hoses.
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9. |
Remove the clips on the two coolant hoses to the throttle body.
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10. |
Fit the cover on the throttle body pedal arm.
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11. |
Start the engine and make sure all the connections are tight. Top up with coolant as necessary.
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12. |
Refit the engine cover.
Tightening torque 10 Nm (7.4 lbf ft) |
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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See Resetting triggered limp-home solenoid