Evaporative Emissions System: Service and Repair

EVAP system components, removing and installing







NOTE:
- Components marked with * are checked via On Board Diagnostic (OBD):
- Components marked with ** are tested via output Diagnostic Test Mode (DTM):

1 - Bracket
2 - 5 Nm
3 - Grommet
4 - Vent line
- from pressure retaining valve
- into the environment
- clipped into left longmember
5 - Ventilation line
6 - Pressure retention valve
- clipped in at EVAP canister
7 - to fuel tank
8 - Flush line
- to test connection/solenoid valve 1 in engine compartment
9 - EVAP canister
- Installation location: connected at left longmember
10 - Heat shield
11 - 2 Nm
12 - Air filter for diagnostic pump
- secured at heat shield
13 - Connector
- 2-pin
- for Evaporative Emission (EVAP) canister purge solenoid valve -N115-
14 - Vent line
15 - Leak Detection Pump (LDP) -V144-*/**
- Installation location: behind fuel tank at left longmember
16 - Bracket for diagnostic pump
17 - 2 Nm
18 - Intake line
- from air filter for diagnostic pump
- clipped into left longmember
19 - Evaporative Emission (EVAP) Canister Purge Regulator Valve -N115-
- During leak diagnostic, valve is activated via the Motronic Engine Control Module (ECM) -J220-
- Secured at EVAP canister with bracket
20 - Connector
- 3-pin
- for Leak Detection Pump (LDP) -V144-
21 - Vacuum line
- for activation of Leak Detection Pump (LDP) -V144-
22 - to EVAP canister
23 - Test connection
- for leak test of EVAP canister system
24 - Evaporative Emission (EVAP) canister purge regulator valve -N80- */**.
- With engine at operating temperature, valve is activated (pulsed) via the Motronic Engine Control Module (ECM) -J220-
- Installation position: Arrow points in direction of flow
25 - to connection piece of throttle valve control module
26 - Connector
- 2-pin
- for Evaporative Emission (EVAP) canister purge regulator valve -N80-