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Removing and installing suppression filterC24 > < Overview of engine compartment electronics box, wiring junction, battery fuse holder

A4 Mk3

Removing and installing engine compartment electronics box
Removing and installing engine compartment electronics box
   
Removing
–  With ignition switched off, disconnect earth cable at battery → Chapter.
–  Remove filler neck for washer fluid reservoir → Chapter.
–  Remove wiper motor → Chapter.
–  Remove bolts -arrows- and detach cover for engine compartment electronics box.
  Note
Disregard -item 1-.
  A10-10853
–  Release catches -arrows A- and remove engine control unit -arrow B-.
  A10-10854
–  Unplug electrical connector -2- if fitted.
–  Unplug electrical connectors -4- and unfasten electrical wire -3- at front and rear.
–  Release catches -arrow- and detach fuse holder B -item 1-.
–  Disengage engine wiring harness at electronics box and move clear.
  A10-10855
–  If fitted, remove alarm horn -H12- → Chapter and move wiring harness clear.
–  Remove bolts -arrows-.
–  Unplug electrical connector -1- for brake fluid level warning contact -F34-
–  Lift engine compartment electronics box -3- and unplug electrical connector -2- for clutch position sender -G476-.
  A97-10339
–  Disengage engine wiring harness -1- at electronics box.
–  Release retaining clips -2- and -5- and press retaining frame -3- for engine control units as far as possible towards passenger compartment.
–  Take out engine compartment electronics box -4-.
Installing
l  Tightening torque → Fig.
Installation is carried out in the reverse order; note the following:
–  Install fuse holder B → Chapter.
–  Install alarm horn -H12- → Chapter.
–  Connect battery. Steps required → Anchor.
–  Install wiper motor → Chapter.
–  Install filler neck for washer fluid reservoir → Chapter.
  A97-10330

Removing and installing suppression filterC24 > < Overview of engine compartment electronics box, wiring junction, battery fuse holder