Volkswagen Golf / Golf GTI / Jetta. Manual - part 75

20-23

 

    

Note:  

Press buttons on hose couplings to 
do so. 

WARNING!

 

Fuel supply lines are under 
pressure! Before removing from 
hose connections wrap a cloth 
around the connection. Then 
release pressure by carefully 
pulling hose off connection.

 

Installing  

Install in reverse sequence ; note the 
following points:  

-  Disconnect return line -2- (blue), 

supply line -1- (black) and 
breather line -3- (white) at 
connecting point. 

-  Seal lines to avoid contamination 

of fuel system. 

-  Remove tensioning strap. When 

doing this support fuel tank with 
engine/transmission jack VAG 
1383 A. 

-  Lower fuel tank. 

 Route breather and fuel hoses 

kink free. 

 Ensure tight fit of fuel hoses. 

 Do not interchange supply and 

return hose (return hose blue or 
blue markings, supply hose 
black). 

Components of fuel supply system, servicing

20-24

 

  

   Note:  

  

   After installing fuel gauge sender, check that the 

supply, return and breather pipes are still clipped 
onto the fuel tank. 

  

  

-  Check DTC memory: 

  

  

 

Repair Manual, 2.8 Liter VR6 4V Fuel Injection 

& Ignition, Engine Code(s): BDF, Repair Group 
01

 

  

  

-  Adapt (match) engine control module to throttle 

valve control module: 

  

  

 

Repair Manual, 2.8 Liter VR6 4V Fuel Injection 

& Ignition, Engine Code(s): BDF, Repair Group 
24

 

  

  

-  Perform work sequence "Procedure after 

interrupting voltage supply": 

  

  

 

Repair Manual, 2.8 Liter VR6 4V Fuel Injection 

& Ignition, Engine Code(s): BDF, Repair Group 
24

 

  

  

-  Read readiness code: 

  

  

 

Repair Manual, 2.8 Liter VR6 4V Fuel Injection 

& Ignition, Engine Code(s): BDF, Repair Group 
01

 

  

  

-  Generate readiness code again if DTC memory 

has been erased or engine control module 
separated from permanent positive supply: 

  

  

 

Repair Manual, 2.8 Liter VR6 4V Fuel Injection 

& Ignition, Engine Code(s): BDF, Repair Group 
01

 

Components of fuel supply system, servicing

20-25

 

  

  

Crash fuel shut-off 

 

  

   Function  

  

   Models with an airbag are installed with a crash 

fuel shut-off system. It reduces the danger of a 
fire in a crash as the fuel pump is switched off via 
the fuel pump relay.  

  

   At the same time this system improves starting of 

the engine. When the door is opened the fuel 
pump is activated for 2 seconds to build up the 
pressure in the fuel system.  

  

   When opening the fuel system:  

  

   Observe safety precautions 

 

Page 20-12

 .  

  

  

-  Check activation of Fuel Pump (FP) relay -J17- 

with VAG 1466 A referring to wiring diagram: 

  

  

 Electrical Wiring Diagrams, Troubleshooting & 

Component Locations 

Components of fuel supply system, servicing

20-26

 

  

Fuel pump, 
checking 

 

Special tools 
and 
equipment  

 3217 

Union nut 
spanner 

 VAG 1318 

Pressure 
gauge 

 VAG 

1318/11 
Adapter 

 VAG 

1318/16 
Hose 
adapter 

 VAG 

1318/17 
Adapter 

 VAG 

1318/23 
Adapter 

Components of fuel supply system, servicing