seat Workshop Repair Guides

SEAT Workshop Service and Repair Manuals

Removing and installing high-pressure pump > < High-pressure pump
High-pressure pump - exploded view
   
High-pressure pump - exploded view
1 - O ring
q   O-rings are only to be renewed if necessary.
q   removing and fitting → Anchor
2 - Fuel return lines
q   To high pressure pump
q   Fuel return line must not be kinked, damaged or clogged
q   The fuel return lines must not be dismantled.
3 - High-pressure pipes
q   28 Nm
q   Between rail element (high-pressure accumulator) and injectors (solenoid valve injectors).
q   Do not interchange
q   Install free of stress
  Note
t  The high-pressure pipes can be re-used after performing the following checks:
t  Check taper seal of high-pressure line for deformation and cracks.
t  The bore of the pipe must not be distorted, restricted or otherwise damaged.
t  Corroded lines should no longer be used.
4 - High-pressure fuel pump
q   removing and fitting → Chapter
q   With fuel metering valve -N290- (do not open).
q   After renewing, a first fuel filling must be performed (never allow the pump to run while it is still empty) → Chapter.
5 - Bolt.
q   20 Nm and then turn 180° further
6 - Bolt.
q   20 Nm and then turn 45° further
7 - Bolts for high-pressure pump toothed belt pulley
q   Bolts: 20 Nm + turn 90° further.
8 - High-pressure pump sprocket
9 - Nut
q   95 Nm
10 - Hub
q   Use counterhold tool -T10051- to loosen and tighten.
q   To remove, use puller -T40064-.

   

Removing and installing high-pressure pump > < High-pressure pump