Removal
1. Relieve the fuel pressure in the fuel line (see "Fuel line - pressure relief").
2. Remove the receiver (see "Receiver - removal and installation").
Note: It is possible to remove the fuel rail without removing the receiver, but when installing the rail in this way it is difficult to ensure the cleanliness of the injectors.
3. With an open-end wrench by 17 mm unscrew the fitting of the fuel supply pipe to the rail (1), holding the hexagonal tip of the fuel line hose with a wrench of the same size. Similarly, disconnect the fuel drain pipe from the hose (2, at the factory this connection is marked with blue paint).
4. We move the ends of the hoses away from the tubes and, using a slotted screwdriver, remove the rubber sealing rings from the ends of the tubes. We replace damaged sealing rings.
5. Remove the hose from the fuel pressure regulator pipe.
6. Having released the retainer, we disconnect the injector wiring harness connectors.
7. With a hex key by 5 mm we unscrew the two bolts securing the fuel rail to the intake manifold.
8. Remove the fuel rail assembly with injectors.
Warning! Be careful, there is a small amount of fuel left in the fuel rail.
Disassembly
1. Using a slotted screwdriver, move the injector retainer along the fuel rail.
2. Remove the injector from the fuel rail.
3. Remove the other three injectors in the same way.
Warning! The connections of the injectors to the fuel rail and to the intake manifold are sealed with rubber rings. Any damaged sealing rings must be replaced.
4. Remove the spring clips of the injectors from the fuel rail.
5. Remove the fuel pressure regulator (see "Fuel rail 2111 (1.5i) - replacement of fuel pressure regulator").
6. Key by 24 mm we unscrew the nut of the fuel supply pipe and remove the end of the pipe from the fuel rail.
Warning! The connection of the tube to the fuel rail is sealed with a rubber ring installed at the end of the rail. All damaged sealing rings of the fuel line tubes must be replaced.
7. If necessary, use a metal cap from the wheel nipple to unscrew the valve stem of the diagnostic nipple.
Assembly and installation
We assemble and install the fuel rail in the reverse order. Before assembly, cover the sealing rubber rings with a thin layer of motor oil.