audi Workshop Repair Guides

Audi 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 - Bracket for ancillaries
q   Removing and installing → Rep. gr.13
2 - Bolt
q   2x
q   Renew
q   20 Nm + turn 180° further
3 - Hub
q   Use counterhold tool -T10051- when loosening and tightening
q   To remove, use puller -T40064-
4 - High-pressure pump
5 - Bolt
q   3x
q   Renew
q   20 Nm
6 - Nut
q   95 Nm
7 - Bolt
q   Renew
q   20 Nm + turn 45° further
8 - High-pressure pump
q   With fuel metering valve -N290- (do not open)
q   After renewing, first fuel filling operation MUST be performed (it is important not to allow pump to run while it is still empty) → Chapter
q   After renewing high-pressure pump or fuel pressure regulating valve -N276-, learnt values must be re-adapted; see „Guided Functions“ in → Vehicle diagnostic tester
q   Removing and installing → Chapter
9 - Fuel supply hose
10 - Fuel return hose
11 - High-pressure pipes
q   Between high-pressure pump and fuel rail
q   Do not interchange
  Note
t  Note identification marks for cylinder allocation when re-installing high-pressure pipes.
t  The high-pressure pipes can be re-used after performing the following checks:
t  Check taper seats of high-pressure pipes for deformation and cracks.
t  The bore of the pipe must not be distorted, restricted or otherwise damaged.
t  Corroded pipes must not be used again.
q   Install free of stress
q   25 Nm

   

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