Intake manifold lower-part, component overview
WARNING: This page is about a different car, the 2009 Audi A4, 2008 Audi A4, 2007 Audi A4, 2006 Audi A4, and 2005 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
1 - Intake manifold lower part
- Removing and installing → Intake manifold lower-part with fuel rail, removing and installing
- After installation, adapt both intake manifold runner position sensors in operating mode "Guided Fault-Finding" in "Adapting intake manifold runner position sensor"
2 - Fuel rail
3 - Fuel Pressure Sensor G247
4 - High-pressure lines
CAUTION:
- Before opening high pressure components of the fuel injection system, pressure must be relieved to residual pressure → Procedure that must be performed before opening the high-pressure fuel injection system. Pay close attention! .
- Then wrap a clean rag around the connection and relieve residual pressure by carefully loosening the connection.
- Do not change bend shape
- Tighten high-pressure lines To fasten high-pressure line (14 mm) on fuel rail, use under Intake manifold lower-part with fuel rail, removing and installing
5 - 10 Nm
6 - Sleeve
7 - 10 Nm
8 - 2.5 Nm
9 - 10 Nm
10 - Retaining bracket for fuel rail
11 - Vacuum actuator for intake manifold runner control
12 - Vacuum hose
- To Intake Manifold Runner Control (IMRC) Valve N316
13 - 2.5 Nm
14 - Intake Manifold Runner Position Sensor
- Left Intake Manifold Runner Position Sensor 2 G512 , right Intake Manifold Runner Position Sensor G336
15 - 2.5 Nm
16 - Seal
- Replace if damaged
- Lift out with screwdriver to replace
- Press in by hand
17 - Seal
- Replace if damaged
- Lift out with screwdriver to replace
- Press in by hand
18 - Seals
- Replace
19 - Support ring
- Make sure it is seated properly
- The fuel rail wields force via support ring to hold fuel injector tightly in cylinder head.
20 - O-ring
- Replace
- Moisten with clean engine oil
21 - Spacer ring
- Replace if damaged
22 - Radial adjustment
- Replace if damaged
- Clip with support ring - 19 -
23 - Combustion chamber seal
- Replacing → Fuel injectors, removing and installing .
24 - Fuel injector
Removing and installing → Fuel injectors, removing and installing