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Removing and installing digital sound package control unit 2 J787, Bang & Olufsen, up to model year 2013, including vehicles with high-voltage electrical system — AUDI

Removing and installing digital sound package control unit 2 J787, Bang & Olufsen, up to model year 2013, including vehicles with high-voltage electrical.

Workshop procedure for AUDI — the factory write-up, straight from real workshop data.

factory workshop text

📋 Procedure

Removing and installing
digital sound package control unit 2
J787
, Bang & Olufsen, up to model year 2013, including vehicles with high-voltage electrical system
The
digital sound package control unit 2
J787
2
is located in the luggage compartment on the back panel (left-side) behind the
digital sound package control unit
J525
1
.
Note
If control unit is to be renewed, select the
“Replace control unit”
function for appropriate control unit in
Vehicle diagnostic tester
.
Switch off ignition and all electrical equipment and remove ignition key.
Removing
Remove luggage compartment back panel trim
General body repairs, interior
Rep. gr.
70
Luggage compartment trim panels; Exploded view - luggage compartment side trim
.
First remove
digital sound package control unit
J525
and then remove
digital sound package control unit 2
J787
with bracket.
Release and unplug connectors
3
,
4
and
5
at
digital sound package control unit
J525
1
.
Fit
protective cap for cable connector
VAS 6223/9
1
onto MOST bus connector
2
.
Unscrew bolts
2
at
digital sound package control unit
J525
1
and detach
digital sound package control unit
J525
1
from bracket.
Then remove bracket with
digital sound package control unit 2
J787
.
Release and unplug connector
2
at
digital sound package control unit 2
J787
1
.
Release and unplug connectors on
TV tuner
R78
.
Fit
protective cap for cable connector
VAS 6223/9
1
onto MOST bus connector
2
.
Unscrew nuts
3
and
4
and detach bracket
1
with
TV tuner
R78
and
digital sound package control unit 2
J787
from luggage compartment.
Remove bracket from
digital sound package control unit 2
J787
.
One securing nut is concealed by
TV tuner
R78
.
Remove
TV tuner
R78
.
Unscrew nuts
1
from bracket (top)
2
and detach bracket
2
from
digital sound package control unit 2
J787
3
.
Unscrew nuts
1
from bracket (bottom)
2
and detach bracket
2
from
digital sound package control unit 2
J787
3
.
Installing
Install in reverse sequence of removal.
Tightening torques
Chapter
“
Overview of fitting locations - sound system, sound amplifiers, microphones, up to model year 2013, including vehicles with high-voltage electrical system
”

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Workshop data on this page last updated 20 Sep 2026.