Fuel Rail With Fuel Injectors - Component Overview

Fuel Rail With Fuel Injectors - Component Overview







NOTE: To prevent damage to catalytic converter the fuel system must be bled after repair work on fuel distributor or on fuel lines. The vehicle must only be started after bleeding.

1. Socket-head bolt -10 Nm
2. Protective cap
3. Retaining clip
- Make sure clip is correctly seated on fuel injector and fuel rail
4. Intake manifold.
- with Throttle Valve Control Module -J338-
- with Intake Air Temperature (IAT) Sensor -G42-
5. Fuel injector insert - 3 Nm
- Use fluid securing material D 000 600 A2 to insert.
6. O-ring
- Always replace
- Coat with clean engine oil
7. Fuel injectors
- Cylinder 1 Fuel Injector -N30-
- Cylinder 2 fuel injector -N31-
- Cylinder 3 fuel injector -N32-
- Cylinder 4 fuel injector -N33-
8. O-ring
- Always replace
- Coat with clean engine oil
9. Fuel supply line
- Tighten to 25 Nm
10. Harness connector
- For injectors
- 4x

Fuel injectors, removing and installing







- Remove engine cover (arrows).







- Disconnect electrical harness connectors at Camshaft Position (CMP) sensor -1- and at fuel injectors -2-.
- Remove retaining bolts -3- of fuel distributor.
- Remove fuel distributor together with fuel injectors from intake manifold simultaneously upward and place it on a clean rag in engine compartment.

CAUTION: Fuel system is under pressure. Before opening system, place rags around the connection area. Then release pressure by carefully loosening connection.

- Disengage retaining clip and remove fuel injector.


NOTE: Fuel line must be removed before replacing fuel distributor.

Installing
Installation is reverse of removal, noting the following:
- Replace O-rings at all opened connection points. (Never remove plastic cap from valve head to replace front O-ring - lift O-ring off over plastic cap).
- Lubricate O-rings with clean engine oil.
- Make sure fuel injectors are in place and seated correctly
- Check clips for proper seating.
- Place fuel rail with secured fuel injectors onto intake manifold, and apply uniform pressure to press it in.

Tightening torque

Component Nm
Fuel distributor to intake manifold 10