audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

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Observe the following if renewing control unit: > < Removing and installing telephone and telematics control unit J526 /renewing unit

A4 Cabriolet Mk2

Removing and installing
Removing and installing
If the telephone/telematics control unit -J526- is defective (unit replacement), a new emergency battery for telematics -A16- must be installed together with new unit.
The emergency battery for telematics -A16- must be ordered separately.
This is not necessary if only the telematics SIM card is renewed.
–  Switch off all electrical equipment.
–  Remove ignition key.
Removing
–  Activate the service mode for telephone/telematics control unit -J526- → Chapter.
–  Remove front seat (right-side) → General body repairs, interior; Rep. Gr.72.
  Note
Seat belt at seat frame does not have to be unfastened.
–  Remove A-pillar trim (bottom right): → General body repairs, interior; Rep. Gr.70.
–  Fold back the floor covering: → General body repairs, interior; Rep. Gr.70.
   
–  Release cover for electronics box -arrows- and remove cover.
  A97-0277
–  Detach electrical connectors -2- at telephone/telematics control unit -J526--1-.
–  Remove telephone/telematics control unit -J526--1- from electronics box.
–  Take out telematics SIM card → Chapter.
The telematics SIM card for telephone/telematics control unit -J526- must remain with the vehicle.
Installing
–  Installation is performed in reverse sequence.
–  Fit new emergency battery for telematics -A16- (only if unit has been renewed).
–  Deactivate the service mode for telephone/telematics control unit -J526- → Chapter.
–  Perform initialisation → Chapter.
  A91-10180

Observe the following if renewing control unit: > < Removing and installing telephone and telematics control unit J526 /renewing unit