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Removing and installing high-pressure pump - vehicles from 09.2005 onwards > < Removing and installing high-pressure pump - vehicles up to 09.2005

A4 Mk2

High-pressure pump on vehicles from 09.2005 onwards - exploded view
   
High-pressure pump on vehicles from 09.2005 onwards - exploded view
1 - Damper weight
q   Use counterhold tool -3036- when loosening and tightening central nut → Fig.
2 - Nut
q   70 Nm
q   Use counterhold tool -3036- when loosening and tightening → Fig.
3 - Toothed belt sprocket for high-pressure pump
q   Remove using puller -T40064- → Fig.
4 - Bolt
q   23 Nm
5 - High-pressure pump
  Caution
t  Observe rules for cleanliness when working on the injection system → Chapter.
t  The high-pressure pump must first be filled with fuel before the engine is started. The high-pressure pump must not be allowed to run while still empty.
q   Removing and installing → Chapter
q   Fuel system must be bled after installing high-pressure pump → Chapter.
6 - Seals
q   Renew
7 - Banjo bolt
q   25 Nm
8 - Fuel supply line
9 - Union nut for high-pressure pipe
q   Tighten to 25 Nm
q   Use socket -T40055-, 17 mm to tighten → Fig.
10 - Banjo bolt
q   25 Nm
11 - Seal
q   Renew
12 - Fuel return line
13 - Seal
q   Renew
14 - Bolt
q   23 Nm
15 - Bolt
q   23 Nm
16 - Bracket for high-pressure pump
17 - Bolt
q   23 Nm
18 - Front bracket for high-pressure pump
19 - Bolt
q   9 Nm

   
Loosening and tightening central nut for high-pressure pump shaft
–  Use counterhold tool -3036- when loosening and tightening central nut -1-.
  A13-10030
Pulling off toothed belt sprocket for high-pressure pump
–  Use puller -T40064- to pull off belt sprocket for high-pressure pump.
  A13-10032
Tightening high-pressure pipe at high-pressure pump
–  Hand-tighten union nut on high-pressure pipe. Make sure that connections are not under tension.
–  To tighten union of high-pressure pipe at high-pressure pump, use torque wrench -V.A.G 1331- with ratchet -V.A.G 1331/1- and socket -T40055-, 17 mm.
  A13-10038

Removing and installing high-pressure pump - vehicles from 09.2005 onwards > < Removing and installing high-pressure pump - vehicles up to 09.2005