VW Golf manuals

Volkswagen Golf Service & Repair Manual: Connection diagram - activated charcoal filter

  Note
Fuel tank leak detection takes advantage of the fact that a vacuum develops naturally in the fuel system as the fuel in the tank cools. The variables temperature and pressure are necessary for fuel tank leak detection. The temperature sensor is integrated into the control unit for fuel tank leak detection -J909-. The tank pressure sensor -G400- is fitted in the pressure control valve. The system is deemed leak-free if 2.5 mbar vacuum is measured as the tank temperature drops. If no vacuum develops, there is a leak in the fuel system, and an entry will be made in the event memory of the engine control unit.
   

Connection diagram - activated charcoal filter

1 -  Activated charcoal filter
Fitting location: In rear right wheel housing beneath liner
Removing and installing → Chapter.
2 -  Air filter
3 -  Pressure regulating valve
With tank pressure sensor -G400-
4 -  Breather line
From activated charcoal filter to engine
5 -  Cap
The gasket must not be dirty or damaged
6 -  Control unit for fuel tank leak detection -J909-
With temperature sensor
7 -  Fuel supply line
Black
8 -  Breather line
White
9 -  Activated charcoal filter solenoid valve 1 -N80-
Checking → Vehicle diagnostic tester
Activated charcoal filter with fuel tank leak detection
...

Assembly overview - activated charcoal filter system
1 -  Connecting hose From air filter to pressure control valve 2 -  Hose clips 3 -  Pressure regulating v ...

Other materials:

General notes
Cleanliness specifications for working on the auxiliary heater and fuel system When working on the fuel supply and injection system, pay careful attention to the following “rules”: Thoroughly clean all unions a ...

Instrument overview
Fig. 12 Instrument cluster in the dash panel First read and observe the introductory information and safety warnings Descriptions of the instruments  : Rev. counter (running engine speed in revolutions x 1,000 per minute). The start of the red zone on the dial indicates the ma ...

Removing and installing trim for operating and display unit
Removing –  Starting at bottom, unclip trim for operating and display unit -1- from operating and display unit -2- and remove it. Installing   Note Before installing, chec ...

© 2016-2019 Copyright www.vwgolf.org