VW Golf manuals

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:

Wire strippers -VAS 1978/3-
Wire strippers -VAS 1978/3- serve as a means of stripping insulation off wires and cutting wires in the correct manner. Wire strippers -VAS 1978/3- are included in wiring harness repair set -VAS 1978 B- and previous versions. ...

Removing and installing poly V-belt, vehicles with air conditioner compressor
Special tools and workshop equipment required     Locking pin -T10060 A- Removing   –  To slacken poly V ...

Removing and installing wheel housing trim, saloon
  Note Removal and installation are described for the left vehicle side. Follow same instructions for the right side as appropriate. Special tools and workshop equipment required     ...

© 2016-2026 Copyright www.vwgolf.org