Audi AMB Service Manual page 219

ENGINE 1.8 Liter 4-Cyl. 5V Turbo Engine Mechanical, Engine Code(s): AMB
4 - Wastegate Bypass Regulator Valve N75
5 - Air filter
With Mass Air Flow (MAF) Sensor G70
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6 - Check valve
Installed position: Arrow on valve points in direction of flow, as shown in illustration
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7 - To EVAP canister
8 - Evaporative Emission (EVAP) Canister Purge Regulator Valve N80
9 - Turbocharger
10 - Pressure regulator valve for crankshaft housing ventilation
11 - Combination valve for secondary air injection (AIR)
12 - Check valve for EVAP canister
Installed position: Arrow on valve points in direction of flow, as shown in illustration
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13 - To brake booster
14 - Vacuum suction jet pump
15 - Check valve
Installed position: Arrow on valve points in direction of flow, as shown in illustration
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16 - Crankshaft housing ventilation
17 - Vacuum reservoir
Component location: Under wheelhousing liner in front left wheelhouse
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18 - Check valve
Installed position: Arrow on valve points in direction of flow, as shown in illustration
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19 - To Leak Detection Pump (LDP) V144
20 - Check valve
2005 Audi A4 Quattro
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