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. |
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|
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| 1 - |
Activated charcoal filter |
| Fitting location: In rear right wheel housing beneath liner |
| Removing and installing
→ Chapter. |
| 3 - |
Pressure regulating valve |
| With tank pressure sensor -G400- |
| From activated charcoal filter to engine |
| The gasket must not be dirty or damaged |
| 6 - |
Control unit for fuel tank leak detection -J909- |
| 9 - |
Activated charcoal filter solenoid valve 1 -N80- |
| Checking → Vehicle
diagnostic tester |
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 ...
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Assembly overview - activated charcoal filter system