Injectors
Injectors |
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To remove |
Important | ||
Great cleanliness must be observed when working on the fuel rail and injectors. Wash valves, fuel rail and intake manifold and clean them with compressed air. |
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1. |
Remove the engine cover.
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2. |
Remove the fuel pump fuse no. 32 while the engine is running. Turn off the ignition once the engine has stopped.
Refit fuel pump fuse no. 32. |
3. |
Undo the fuel connections to the fuel rail with the special tool, part no. 83 95 261.
Wipe up excess fuel with a rag. |
4. |
Detach the crankcase ventilation hoses.
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5. |
Remove the dipstick and filler pipe and plug the pipe.
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6. |
Remove the cover on the throttle disc. Detach the accelerator wire from the throttle spindle. Remove the accelerator wire and holder and bend to one side.
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7. |
Undo the cable channel, 3 screws.
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9. |
Clean the area round the injectors with compressed air.
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10. |
Remove the 2 rail retaining bolts.
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11. |
Disconnect the pressure regulator vacuum hose.
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12. |
Carefully prise loose the rail with 2 crowbars or similar tools.
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13. |
Carefully lift out the rail.
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14. |
Plug the nozzle orifices.
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To fit |
1. |
Remove the plugs from the nozzles and lubricate the injector O-rings with acid-free vaseline, part no. 30 06 665.
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2. |
Carefully lift the rail in place.
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3. |
Fit the rail with fuel rail and injectors, 2 screws.
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4. |
Connect the pressure regulator vacuum hose.
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5. |
Remove the cable ties around the injectors.
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6. |
Position the cable channel. Spray the injector connectors with Kontakt 61, part no. 30 04 520, and plug them in.
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7. |
Fit the cable channel with the 3 screws.
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8. |
Fit the accelerator wire and holder.
Adjust the accelerator wire. |
9. |
Fit the cover over the throttle disc.
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10. |
Fit the dipstick and filler pipe.
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11. |
Attach the crankcase ventilation hoses.
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12. |
Fit the fuel connections to the fuel rail.
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13. |
Fit the engine cover.
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