Operation CHARM: Car repair manuals for everyone.

EVAP System Component Overviews






EVAP System Component Overviews

=> [ with a Single Air Filter ]

=> [ with Dual Air Filters ]

Some vehicles have an additional filter installed on the Evaporative Emission (EVAP) canister.

Hose connections are secured with either spring-type or clamp-type clips.

Hose clip pliers (VAS 6340) or hose clip pliers (VAS 6362) are recommended for installing space saving clamps.

The connectors for fuel, vacuum and ventilation lines are marked with colors. There is either a colored dot on the connector or the release button is the corresponding color.






with a Single Air Filter






1 Bolts

2 Leak Detection Pump (V144)

3 Vacuum Line

4 Clamp

5 Connecting Hose

Evaporative Emission (EVAP) canister/leak detection pump.

6 Vacuum Hose

7 Connecting Hose

Air filter/leak detection pump

8 Air Filter Housing

9 Nut

10 Nm

10 EVAP Canister

Component location: inside the right rear wheel housing.

Remove the nuts and pull the EVAP canister downward.

11 Vent Line

To the EVAP canister purge regulator valve 1 (N80).

Clipped onto the fuel tank.

12 Vent Line

From the fuel tank.

with Dual Air Filters






1 Leak Detection Pump (V144)

2 Vacuum Line

3 Vacuum Hose

4 Connecting Hose

5 Clamp

6 Vent Line

From the fuel tank.

7 Clip

8 Connecting Hose

Air filter/leak detection pump.

9 Bolt

10 Air Filter Housing

11 Auxiliary Filter

12 Nut

10 Nm

13 Vent Line

To the EVAP canister purge regulator valve 1 (N80).

Clipped onto the fuel tank.

14 Connecting Hose

15 Evaporative Emission (EVAP) Canister

Component location: inside the right rear wheel housing.

Remove the nuts and pull the EVAP canister downward.

16 Bolts