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Checking fuel pressure and residual pressure (up to high-pressure pump) > < Checking fuel pressure senderG247

A3 Mk2

Removing and installing fuel pressure senderG247
Removing and installing fuel pressure sender -G247-
If the fuel pressure sender -G247- fails, the fuel pressure regulating valve -N276- is switched off, the electric fuel pump is fully activated and the engine is operated with the fuel pressure which remains. This will reduce engine torque considerably.
Special tools and workshop equipment required
   
t  Assembly tool -T10118-
  W00-1148
t  Bit (27 mm) -T40218- or commercially available socket (27 mm)
Removing
–  Carefully pull off engine cover panel.
  WARNING
The fuel system is pressurised. The fuel pressure in the high-pressure part of the injection system must be reduced to a residual pressure prior to opening; for procedure see → Chapter.
  W00-10779
–  Detach coolant pipe from intake manifold -arrows-.
  A24-10446
–  Release connector on fuel pressure sender -G247- using assembly tool -T10118-.
–  Unscrew fuel pressure sender -G247- using bit, 27mm -T40218-.
Installing
–  Install in reverse order.
–  Make sure that connecting piece is tightened to specified torque before installing fuel pressure sender -G247-.
l  Tightening torque for connecting piece: Fuel rail - exploded view → Chapter
l  Tightening torque for fuel pressure sender -G247-: Fuel rail - exploded view → Chapter
  A24-10445

Checking fuel pressure and residual pressure (up to high-pressure pump) > < Checking fuel pressure senderG247