PRE-RELEASE
Fuel rail, 4-cyl.
| Fuel rail, 4-cyl. |
| To remove |
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Warning
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Work only in a well-ventilated area! If approved equipment for the extraction of fuel vapours is available, be sure to use it.
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Wear suitable gloves! Prolonged contact with fuel can cause skin irritation or dermatitis.
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Keep a class BE fire extinguisher near at hand! Be mindful of the danger of sparks caused by short circuits and when connecting and disconnecting leads in electrical circuits.
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No smoking anywhere in the vicinity.
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| Important | ||
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Great cleanliness must be observed when working on the fuel rail and injectors. Clean the injectors, fuel-injection rail and intake manifold. Blow clean with compressed air. |
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| 1. |
Remove the upper engine cover.
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| 2. |
Remove the charge air pipe from the turbocharger and camshaft cover, move it aside and plug the hose and turbocharger inlet.
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| 3. |
Remove the charge air hose from the throttle body, plug it and move it aside.
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| 4. |
Unplug the temperature/pressure sensor connector and the ground cable. Remove the throttle body. Plug the intake manifold.
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| 5. |
Unplug the connector. Detach and move aside the EGR valve.
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| 6. |
Detach the engine harness from the oil filter housing.
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| 7. |
Detach the fuel return hoses from the fuel bridges.
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| 8. |
Note the position of the fuel rails and their clips and mark them.
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| 9. |
Remove the fuel rails with clips. Remove following the order of the cylinders.
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| To fit |
| 1. |
Check the fuel rail connecting cones. Replace the rails as necessary. Fit the fuel lines with clips to the fuel bridges and fuel pump.
Tightening torque: 25 Nm (18 lbf ft). |
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| 2. |
Fit new fuel return hoses. Check the condition of the T-pieces. Replace as necessary.
Tightening torque: 25 Nm (18 lbf ft). |
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| 3. |
Fit the lower clip for the wiring harness to the oil filter housing.
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| 4. |
Fit the EGR valve with new O-ring and plug in its connector.
Tightening torque: 8 Nm (6 lbf ft) |
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| 5. |
Fit the throttle body with new seal; plug in the temperature/pressure sensor connector and the ground cable.
Tightening torque: 10 Nm (7 lbf ft) |
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| 6. |
Fit the turbo pressure hose to the throttle body.
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| 7. |
Connect the turbocharger delivery pipe to the turbocharger and fit the charge air pipe to the camshaft cover.
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| 8. |
Bleed the fuel system. See
Bleeding fuel line, 4-cyl
.
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| 9. |
Replace the upper engine cover.
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