Intake manifold and related components (Audi A6 C5)

2.0. Intake Manifold and Related Components. Vehicles with 2.7L Engine:
1 - fuel pressure reducing valve
2 - electromagnetic valve for purging the adsorber
3 - exhaust gas temperature sensor
4 - low pressure hose of the brake booster
5 - turbocharger bypass valve
6 - low pressure hose of vacuum receiver
7 - Fuel injector plugs (head 2 of cylinder block)
8 - air intake hose (head 2 of cylinder block)
9 - throttle valve
10 - boost air pressure sensor
11 - supply air ducts
12 - air hose
13 - intake air temperature sensor
14 - engine crankcase ventilation hoses
15 - air intake hose (head 1 of cylinder block)
16 - return fuel line
17 - fuel supply line

2.0a. Intake manifold. Cars with 4.2L engine:
1 - intake manifold
2 - fuel injector sealing rings. To be replaced after each dismantling
3 - bolt. Tightening torque -10 Nm
4 - return fuel line
5 - fuel supply line. Tightening torque of the union nut for fastening the fuel line - 25 Nm
6 - fuel rail
7 - low pressure hose of fuel pressure regulator
8 - crankcase ventilation valve
9 - intake manifold mounting bolt. Tightening torque - 10 Nm
10 - eye
11 - eye mounting bolt. Tightening torque - 23 Nm
12 - intake manifold sealing gasket. To be replaced after each dismantling
13 - bolt. Tightening torque - 0.6 Nm