Fuel Injector: Service and Repair

Fuel rail with injectors, disassembling and assembling
Engine codes AEG, AVH, AZG, BDC





1. Retaining clip
^ Check if seated securely
2. Return line
^ Blue or with blue marking
^ Secure with spring-type clips
^ Check if seated securely
3. Supply line
^ Black with white marks
^ Secure with spring-type clips
^ Check if seated securely
4. Fuel rail
5. Air pipe
6. To intake hose
7. Air hose
^ For air shrouded injectors
8. Retaining clip
^ Ensure seated correctly at injector and fuel rail
9. Injector -N30-...-N33-
^ Air shrouded
10. O-ring
^ Replace
^ Before installing moisten with clean engine oil
11. 8 Nm
12. O-ring
^ Replace
13. Vacuum hose
14. Fuel pressure regulator