S4 Quattro Cabriolet V8-4.2L (BHF) (2008)
Leak Detection Pump: Locations
EVAP Canister/Leak Detection System, Assembly Overview
1
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Cap nut, 9 Nm
2
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Cover
-
For EVAP canister
3
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Stud bolt, 16 Nm
4
-
Sealing piece
5
-
Ventilation line
-
From gravity valve at fuel tank
-
To remove, press release ring on EVAP canister
6
-
Ventilation line
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To evaporative emission (EVAP) canister purge regulator valve N80
-
To remove, press release ring on EVAP canister
7
-
Air filter housing
-
For leak detection pump (LDP) V144
-
No maintenance schedule
8
-
4 Nm
9
-
Vacuum line
-
To leak detection pump (LDP) V144
10
-
Cable tie
-
To fasten vacuum line to bracket for leak detection pump
11
-
Leak detection pump (LDP) V144
-
Component location: In left rear wheel housing behind wheel housing liner
12
-
Electrical harness connector
13
-
Connecting hose
-
Leak detection pump/EVAP canister
-
Pressure side
-
To remove at leak detection pump, press release button on connection
14
-
Connecting hose
-
Leak diagnosis pump/air filter