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Filling/bleeding fuel system > < Injection system

Golf Mk6

Schematic overview - fuel system
Schematic overview - fuel system
  WARNING
t  Read rules for cleanliness and the instructions for working on the fuel system → Chapter.
t  Always follow these rules for cleanliness and instructions before starting work and while working on the fuel system.
t  If components of the fuel system between the tank and the high-pressure fuel pump are removed or renewed, the fuel system must be filled to be bled → Chapter. (It is important not to allow the high-pressure pump to run while still empty.)
The diesel direct injection system control unit is equipped with an event memory. Read event memory before and after making repairs or adjustments → Vehicle diagnosis tester.
   
1 - Fuel tank
q   With fuel system pressurisation pump -G6-.
2 - Fuel filter
q   With pre-heating valve.
q   → Fuel supply system - Diesel engines; Rep. gr.20
3 - Supplementary fuel pump -V393- or fuel pump 2 -V277-
Removing and installing → Fuel supply system - diesel engines; Rep. gr.20
  Note
The component designation for the inline electronic fuel pump was changed from „supplementary pump V393“ to „fuel pump 2 V277“ in a software revision. This is the same component.
4 - Filter strainer
5 - Fuel temperature sender -G81-
6 - High-pressure pump
q   After renewing, a first fuel filling must be performed (never allow the pump to run while it is still empty) → Chapter.
q   Removing and installing → Chapter.
7 - Fuel metering valve -N290-
q   Must not be removed.
8 - Fuel pressure regulating valve -N276-
q   Removing and installing → Chapter.
9 - High-pressure accumulator (fuel rail)
10 - Fuel pressure sender -G247-
q   Removing and installing → Chapter.
11 - Non-return valve
q   The non-return valve may only be renewed as a unit together with the fuel return lines.
q   After replacement, engine must be run at idling speed for approx. 2 minutes to bleed fuel system.
12 - Injectors
q   Injector, cylinder 1 -N30-
q   Injector, cylinder 2 -N31-
q   Injector, cylinder 3 -N32-
q   Injector, cylinder 4 -N33-
q   Removing and installing → Chapter.

   

Filling/bleeding fuel system > < Injection system