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Removing and installing fuel pressure regulating valveN276 > < Installing high-pressure lines

Leon Mk2

Checking fuel pressure regulating valveN276
Checking fuel pressure regulating valve -N276-
Special tools and workshop equipment required
   
t  Engine sealing plug set -VAS 6122-, see equivalent → Anchor
  WARNING
t  Always read rules for cleanliness and instructions for working on fuel system → Chapter.
t  Always follow these rules for cleanliness and instructions before starting work and while working on the fuel system.
  W00-10435
–  Loosen the engine cover at the locations -arrows- and remove.
  E10-10087
–  Remove fuel return hose from fuel rail; release hose clip -arrow- for this.
–  Seal open fuel return hose using a bung from engine bung set -VAS 6122-.
  N15-10402
–  Connect auxiliary hose -2- to fuel rail return connection -3-.
–  Hold auxiliary hose in measuring container -4- to measure return quantity.
–  Start engine and run at idling speed for 30 seconds.
l  Specification after 30 seconds: 90 … 110 ml
If the specification is not attained, the fuel pressure regulating valve -N276- is defective.
  A23-10457

Removing and installing fuel pressure regulating valveN276 > < Installing high-pressure lines