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Audi Workshop Service and Repair Manuals

Stress-free alignment of exhaust system > < Removing and installing exhaust manifold (left-side)
Removing and installing exhaust manifold (right-side)
Removing and installing exhaust manifold (right-side)
Removing
l  Engine removed and in position on scissor-type assembly platform -VAS 6131 A- with gearbox attached.
  Note
t  Fit all heat shields and heat insulation sleeves in the original positions when installing.
t  All cable ties which are released or cut open when removing must be fitted in the same position when installing.
   
–  Remove electrical connectors -1- and -2- from bracket on gearbox.
–  Unplug electrical connectors.
–  Detach heat insulation sleeve at wiring harness and release individual electrical wires.
  A24-10167
–  Unscrew bolt -2- at bracket for front exhaust pipe (right-side).
  Note
Disregard -item 1-.
  A26-10241
–  Unscrew nuts -arrows- securing front exhaust pipe to exhaust manifold (right-side).
–  Take out front exhaust pipe with starter and main catalytic converter.
  A26-10242
–  Unscrew nuts -1 ... 6- and remove exhaust manifold (right-side).
Installing
Installation is carried out in the reverse order; note the following:
  Note
t  Renew gasket and self-locking nuts.
t  Fit all heat shields and heat insulation sleeves in the original positions when installing.
t  All cable ties which are released or cut open when removing must be fitted in the same position when installing.
  A26-10388
–  Fit gasket onto studs.
–  Fit exhaust manifold in mounting strips and tighten nuts hand-tight.
–  Tighten nuts for exhaust manifold in 2 stages as follows:
1.  Pre-tighten nuts in the sequence -1 ... 6- to 20 Nm.
2.  Tighten nuts in the sequence -1 ... 6- to 30 Nm.
–  Install front exhaust pipe (right-side) → Chapter.
Tightening torque
  A26-10388
ComponentNm
Exhaust manifold to cylinder head30 1)2)3)
l  1) Renew nuts.
l  2) Grease with high-temperature paste; refer to → Electronic parts catalogue for high-temperature paste
l  3) Tighten in two stages.

   

Stress-free alignment of exhaust system > < Removing and installing exhaust manifold (left-side)