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A4 Cabriolet Mk2

Removing and installing control unit with display for radio and navigationJ503
Removing and installing control unit with display for radio and navigation -J503-
Special tools and workshop equipment required
   
t  Radio release tool -T10057-
–  When renewing control unit, select “Replacement” function for appropriate control unit in “Guided Fault Finding”.
For this purpose, use vehicle diagnostic, testing and information system -VAS 5051-.
–  Switch off all electrical equipment.
–  Remove ignition key.
Removing
  W00-1042
–  Insert radio release tools -T10057--arrows- into slots on control unit with display for radio and navigation -J503- until they engage. Pointed ends of grips must face outwards.
–  Grasp hold of grips on radio release tool -T10057- and pull control unit with display for radio and navigation -J503- out of dash panel.
–  Release and unplug electrical connectors at control unit with display for radio and navigation -J503-.
–  Press release tabs on control unit with display for radio and navigation -J503- and remove radio release tool -T10057-.
Installing
–  Plug in all connectors.
–  Carefully slide control unit with display for radio and navigation -J503- into dash panel until it engages in mounting frame.
  A91-10438

Telematics system > < Overview of fitting locations