Removing
1. Relieve 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 reservoir, but when installing the rail in this way, it is difficult to ensure the cleanliness of the injectors.
3. Open end wrench by 17 mm unscrew the fitting of the fuel supply pipe to the ramp (1), while holding the hex end 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 remove the hose tips from the tubes and, prying with a slotted screwdriver, remove the rubber sealing rings from the ends of the tubes. Replace damaged sealing rings.
5. Remove the hose from the nozzle of the fuel pressure regulator.
6. Having released the latch, we disconnect the pads of the wiring harness of the injectors.
7. Hex key by 5 mm unscrew the two bolts securing the fuel rail to the intake manifold.
8. Remove the fuel rail assembly with injectors.
Attention! Be careful, there is a small amount of fuel left in the fuel rail.
Disassembly
1. Use a slotted screwdriver to shift the nozzle retainer along the fuel rail.
2. Remove the nozzle from the fuel rail.
3. Similarly, remove the other three nozzles.
Warning! The connections of the injectors with the fuel rail and with the inlet pipeline are sealed with rubber rings. Any damaged O-rings must be replaced.
4. Remove the injector spring clamps from the fuel rail.
5. Remove the fuel pressure regulator (see "Fuel rail 2111 (1,5i) - replacement of the fuel pressure regulator").
6. Key by 24 mm 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 with the fuel rail is sealed with a rubber ring installed at the end of the rail. Any damaged fuel line O-rings must be replaced.
7. If necessary, use a metal cap from the wheel nipple to unscrew the spool of the diagnostic fitting.
Assembly and installation
We assemble and install the fuel rail in reverse order. Before assembly, coat the O-rings with a thin layer of engine oil.