audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Removing and installing turbocharger > < Turbocharger
Turbocharger - exploded view
   
Turbocharger - exploded view
1 - Bolt
q   9 Nm
2 - O-ring
q   Renew
3 - O-ring
q   Renew
4 - Coolant pipes
5 - Bolt
q   9 Nm
6 - Nut
q   Coat threads with high-temperature paste; for high-temperature paste refer to → Electronic parts catalogue
q   Tightening torque and sequence → Fig.
7 - Turbocharger
q   Combined with exhaust manifold
q   Removing and installing → Chapter
8 - Gasket
q   With heat shield
q   Renew
9 - Bracket
q   For turbocharger
10 - Bolt
q   20 Nm
11 - Bolt
q   20 Nm
12 - O-ring
q   Renew
13 - Oil supply pipe
14 - Bolt
q   9 Nm
15 - O-ring
q   Renew
16 - Pulsation damper
17 - Bolt
q   9 Nm
18 - Sleeve
19 - O-ring
q   Renew
20 - Heat shield
21 - Bolt
q   8 Nm
22 - Bolt
q   9 Nm
23 - Gasket
q   Renew
24 - Oil return pipe

   
Turbocharger - tightening torque and sequence
  Note
Renew nuts.
–  Tighten nuts in 4 stages in the sequence shown:
  N21-10278
StageNutsTightening torque
1.-A … H-Screw in nuts by hand until they make contact
2.-A … H-18 Nm
3.-A … H-Re-tighten to 12 Nm
4.-A … H-Re-tighten to 12 Nm

  Note
This tightening sequence has been specified in order to compensate for the settling of the joints.
   

Removing and installing turbocharger > < Turbocharger