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Charge air cooling - exploded view > < Removing and installing intermediate flange - engine code letters AKE, AYM, BAU, BCZ, BFC

A4 Mk2

Removing and installing intermediate flange - engine code letters BDG, BDH
Removing and installing intermediate flange - engine code letters BDG, BDH
Removing
  Note
All cable ties which are released or cut open when removing must be fitted in the same position when installing.
–  Remove front exhaust pipe with main catalytic converter: vehicles with front-wheel drive → Chapter, vehicles with four-wheel drive → Chapter.
–  Remove starter catalytic converter: vehicles with front-wheel drive → Chapter, vehicles with four-wheel drive → Chapter.
–  Remove turbocharger → Chapter.
–  Remove exhaust manifold together with intermediate pipe: left-side → Chapter, right-side → Chapter.
   
–  Detach vacuum hose -3-.
–  Remove nuts -2- and bolts -1- and -4-.
–  Remove mechanical exhaust gas recirculation valve together with connecting pipe.
  A21-10029
–  Release cable tie -1- at rear of heat shield and move wiring clear.
–  Unscrew bolts -arrows- and detach heat shield -2- from intermediate flange.
–  Unbolt coolant pipe at rear of oil filter bracket.
  A21-0059
–  Remove top left securing bolt -arrow 1- on engine/gearbox flange.
–  Unscrew bolts -arrows 2-.
–  Guide out intermediate flange to rear right.
Installing
Installation is carried out in the reverse order; note the following:
  Note
t  Renew gaskets and self-locking nuts.
t  Fit all cable ties in the original positions when installing.
–  Install exhaust manifold together with intermediate pipe: left-side → Chapter, right-side → Chapter.
–  Install turbocharger → Chapter.
–  Install starter catalytic converter: vehicles with front-wheel drive → Chapter, vehicles with four-wheel drive → Chapter.
–  Install front exhaust pipe with main catalytic converter: vehicles with front-wheel drive → Chapter, vehicles with four-wheel drive → Chapter.
Tightening torques
  A21-0061
ComponentNm
Intermediate flange to cylinder block22
Support for intermediate flange to Gearbox65
Intermediate flange22
Mechanical exhaust gas recirculation valve to exhaust gas recirculation bracket22
EGR connecting pipe to intermediate flange22 → Note

1)  Renew nuts.
   

Charge air cooling - exploded view > < Removing and installing intermediate flange - engine code letters AKE, AYM, BAU, BCZ, BFC