Fuel Rail: Service and Repair

Fuel Rail, Disassembling And Assembling







1 - Fuel rail
2 - 8 Nm
3 - Return line
- Blue or with blue marking
- Secure with spring-type clips
- Check seated securely
- To fuel delivery unit:
4 - Supply line
- Black
- Secure with spring-type clips
- Check seated securely
- From fuel filter:
5 - Connecting hose
- Black
- Check seated securely
- Secure with spring-type clips
- For air shrouding of fuel injectors
- To intake hose, item 5
6 - O-ring
- Before installing moisten with clean engine oil
7 - Fuel injectors (-N30-...-N33-, -N83- and -N84-)*
- Air shrouded
- When replacing, erase learned values and adapt Motronic Engine Control Module (ECM) -J220- to Throttle Valve Control Module -J338-.
8 - Retaining clip
- Ensure seated correctly at fuel injector and fuel rail
9 - Retaining clip
- Check seated securely
10 - Vacuum line
- To non-return valve/intake manifold junction piece
11 - Fuel pressure regulator