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Volkswagen Golf Service & Repair Manual: Digital sound package control unit -J525-, vehicles with Volkswagen sound system

Volkswagen Golf Service & Repair Manual / Communication / Infotainment / Sound system / Digital sound package control unit -J525-, vehicles with Volkswagen sound system

Special tools and workshop equipment required
   
Torque wrench -V.A.G 1783-
 

Digital sound package control unit -J525-, vehicles with Volkswagen sound system

Protective cap for wiring harness connector -VAS 6223/9-
If the control unit is replaced, select the Replace function of the respective control unit in Guided fault finding → Vehicle diagnostic tester.
Removing
–  Move front seat to rearmost using longitudinal adjustment mechanism and raise to highest position.
–  Switch off ignition and all electrical consumers, and remove ignition key.
 

Digital sound package control unit -J525-, vehicles with Volkswagen sound system

–  Pull out spreader rivets -2-, slide cover -1- straight in direction of travel and remove it.
 

Digital sound package control unit -J525-, vehicles with Volkswagen sound system

–  Release and unplug connector -2- on digital sound package control unit -J525--1-.
 

Digital sound package control unit -J525-, vehicles with Volkswagen sound system

–  Push protective cap for cable connector -VAS 6223/9--1- onto connector of MOST bus -2-.
 

Digital sound package control unit -J525-, vehicles with Volkswagen sound system

–  Release and unplug connector -3- on digital sound package control unit -J525--1-.
–  Remove bolts -4-.
–  Swing digital sound package control unit -J525--1- out of retainer.
Installing
Install in the reverse order of removal. When doing this, note the following:
  Note
When installing, ensure that the digital sound package control unit -J525- is seated correctly in the groove of the retainer.
When installing the cover, ensure that it is properly fitted on the front edge of the retainer.
 

Digital sound package control unit -J525-, vehicles with Volkswagen sound system

Specified torques
Component Specified torque
Bolt -4- on retainer 3 Nm
 
     
Electrical connectors on digital sound package control unit -J525-
1 -  Multi-pin connector, 38-pin
2 -  MOST bus, 2-pin
 

Digital sound package control unit -J525-, vehicles with Volkswagen sound system

Overview of fitting locations- sound system, vehicles with Dynaudio sound system
On vehicles equipped with a Dynaudio sound system, high-quality Dynaudio loudspeakers can be found at standard fitting locations. The Dynaudio sound system can be ide ...

Digital sound package control unit -J525-, vehicles with Dynaudio
Special tools and workshop equipment required     Torque wrench -V.A.G 1783-   ...

Other materials:

Assembly overview - sun visors
  Note The assembly overview is shown for the driver side. The assembly overview for the front passenger side is analogous. 1 -  Sun visor Removing and installing → Chapter 2 -  Sun visor mount ...

Removing and installing bracket for onboard supply control unit -J519-, LHD vehicles
Removing –  With ignition switched off, disconnect earth cable from battery → Chapter. –  Remove dash panel → General body repairs, interior; Rep. gr.70. ...

Notes on releasing and dismantling contact housings
  Note Observe the general notes on repairs to the vehicle electrical system → Chapter. To release, always use the correct release tools. Under no circumstances should the contacts be pulled out of the ...

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