Audi A4 Owners & Service Manuals

Audi A4: Component Location Overview - Sound System

Audi A4 (B9) 2016-2025 Service Manual / Electrical System / Communication / Sound System / Component Location Overview - Sound System

Component Location Overview - Sound System, Speaker, Sedan

Component Location Overview - Sound System, Speaker, Sedan

1 - Left Front Treble Speaker -R20-/Right Front Treble Speaker -R22-, 8RM, 9VD

   - Left Front Midrange Speaker 2 -R276-/Right Front Midrange Speaker 2 -R277-, 9VS

  • Removing and installing. Refer to → Chapter "Left and Right Front Treble Speaker -R20-/-R22-, Removing and Installing".

2 - Bolt

  • 2 Nm
  • Quantity: 2

3 - Left Front Treble Speaker -R20-/Right Front Treble Speaker -R22-, 9VS

  • Removing and installing. Refer to → Chapter "Left and Right Front Treble Speaker -R20-/-R22-, Removing and Installing, 9VS".

4 - Left Front Treble Speaker 2 -R220-/Right Front Treble Speaker 2 -R221-, 9VS

  • Removing and installing. Refer to → Chapter "Left and Right Front Treble Speaker 2 -R220-/-R221-, Removing and Installing".

5 - Pop Rivet

  • Refer to the Parts Catalog

6 - Left Effects Speaker -R209-/Right Effects Speaker -R210-, 9VS

  • Removing and installing. Refer to → Chapter "Left and Right Effects Speaker -R209-/-R210-, Removing and Installing, Sedan".

7 - Bolt

  • 2 Nm
  • Quantity: 2

8 - Subwoofer -R211-, 9VD, 9VS

  • Removing and installing. Refer to → Chapter "Subwoofer -R211-, Removing and Installing, Sedan".

9 - Bolt

  • 2 Nm
  • Quantity: 3

10 - Left Rear Treble Speaker -R14-/Right Rear Treble Speaker -R16-

  • Removing and installing. Refer to → Chapter "Left and Right Rear Treble Speaker -R14-/-R16-, Removing and Installing".

11 - Left Rear Bass Speaker -R15-/Right Rear Bass Speaker -R17-

  • Removing and installing. Refer to → Chapter "Left and Right Rear Bass Speaker -R15-/-R17-, Removing and Installing".

12 - Bolt

  • 3 Nm
  • Quantity: 3

13 - Left Front Bass Speaker -R21-/Right Front Bass Speaker -R23-

  • Removing and installing. Refer to → Chapter "Left and Right Front Bass Speaker -R21-/-R23-, Removing and Installing".

14 - Bolt

  • 3 Nm
  • Quantity: 4

15 - Left Front Midrange Speaker -R103-/Right Front Midrange Speaker -R104-, 9VS

  • Removing and installing. Refer to → Chapter "Front Midrange Speaker, Removing and Installing".

16 - Bolt

  • 2 Nm
  • Quantity: 2

17 - Center Speaker 2 -R219-, 9VS

  • Removing and installing. Refer to → Chapter "Center Speaker 2 -R219-, Removing and Installing, 9VS".

18 - Retainers

19 - Center Speaker -R208-, 9VD, 9VS

  • Removing and installing. Refer to → Chapter "Center Speaker -R208-, Removing and Installing, 9VD/9VS".

20 - Bolt

  • 2 Nm
  • Quantity: 2

Component Location Overview - Sound System, Speaker, Avant

Component Location Overview - Sound System, Speaker, Avant

1 - Left Front Treble Speaker -R20-/Right Front Treble Speaker -R22-, 8RM, 9VD

   - Left Front Midrange Speaker 2 -R276-/Right Front Midrange Speaker 2 -R277-, 9VS

  • Removing and installing. Refer to → Chapter "Left and Right Front Treble Speaker -R20-/-R22-, Removing and Installing".

2 - Bolt

  • 2 Nm
  • Quantity: 2

3 - Left Front Treble Speaker -R20-/Right Front Treble Speaker -R22-, 9VS

  • Removing and installing. Refer to → Chapter "Left and Right Front Treble Speaker -R20-/-R22-, Removing and Installing, 9VS".

4 - Left Front Treble Speaker 2 -R220-/Right Front Treble Speaker 2 -R221-, 9VS

  • Removing and installing. Refer to → Chapter "Left and Right Front Treble Speaker 2 -R220-/-R221-, Removing and Installing".

5 - Pop Rivet

  • Refer to the Parts Catalog

6 - Left Effects Speaker -R209-/Right Effects Speaker -R210-, 9VS

  • Removing and installing. Refer to → Chapter "Left and Right Effects Speaker -R209-/-R210-, Removing and Installing, Avant".

7 - Bolt

  • 2 Nm
  • Quantity: 2

8 - Subwoofer -R211-, 9VD, 9VS

  • Removing and installing. Refer to → Chapter "Subwoofer -R211-, Removing and Installing, Avant".

9 - Nut

  • 3 Nm
  • Quantity: 3

10 - Bolt

  • 10 Nm

11 - Left Rear Treble Speaker -R14-/Right Rear Treble Speaker -R16-

  • Removing and installing. Refer to → Chapter "Left and Right Rear Treble Speaker -R14-/-R16-, Removing and Installing".

12 - Left Rear Bass Speaker -R15-/Right Rear Bass Speaker -R17-

  • Removing and installing. Refer to → Chapter "Left and Right Rear Bass Speaker -R15-/-R17-, Removing and Installing".

13 - Bolt

  • 3 Nm
  • Quantity: 3

14 - Left Front Midrange Speaker -R103-/Right Front Midrange Speaker -R104-, 9VS

  • Removing and installing. Refer to → Chapter "Front Midrange Speaker, Removing and Installing".

15 - Bolt

  • 2 Nm
  • Quantity: 2

16 - Left Front Bass Speaker -R21-/Right Front Bass Speaker -R23-

  • Removing and installing. Refer to → Chapter "Left and Right Front Bass Speaker -R21-/-R23-, Removing and Installing".

17 - Bolt

  • 3 Nm
  • Quantity: 4

18 - Retainers

19 - Center Speaker 2 -R219-, 9VS

  • Removing and installing. Refer to → Chapter "Center Speaker 2 -R219-, Removing and Installing, 9VS".

20 - Center Speaker -R208-, 9VD, 9VS

  • Removing and installing. Refer to → Chapter "Center Speaker -R208-, Removing and Installing, 9VD/9VS".

21 - Bolt

  • 2 Nm
  • Quantity: 2

Component Location Overview - Sound System, Microphone, Amplifier

Component Location Overview - Sound System, Microphone, Amplifier

1 - Interior Microphone -R74-, 9VS

  • Removing and installing. Refer to → Chapter "Microphone Unit in Front Roof Module -R164-, Removing and Installing".

2 - Front Interior Lamp -W1-

  • Removing and installing. Refer to → Electrical Equipment; Rep. Gr.96; Controls; Front Interior/Reading Lamp, Removing and Installing.
  • With Microphone Unit in Front Roof Module -R164-
  • Removing and installing. Refer to → Chapter "Microphone Unit in Front Roof Module -R164-, Removing and Installing".

3 - Digital Sound System Control Module -J525-, 9VS

  • Connector assignment. Refer to → Wiring diagrams, Troubleshooting & Component locations.
  • Removing and installing. Refer to → Chapter "Control Module/Digital Sound System Amplifier, Removing and Installing".

4 - Bracket

  • 3 Nm
  • Nut, quantity 3

5 - Bolt

  • 6 Nm
  • Quantity: 2

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     Control Module/Digital Sound System Amplifier, Removing and Installing

    Special tools and workshop equipment required Fiber-Optic Repair Set - Connector Protective Caps -VAS6223/9-. The Digital Sound System Control Module -J525--1- is located behind the left luggage

     Left and Right Rear Treble Speaker -R14-/-R16-, Removing and Installing

    The Left Rear Treble Speaker -R14-/Right Rear Treble Speaker -R16--1- are inside the rear doors at the top. Removing and installing is identical. Removing - Turn off the ignition and all electr

     Front Midrange Speaker, Removing and Installing

    The Left Front Midrange Speaker -R103-/Right Front Midrange Speaker -R104--1- are located in the center of the front doors. Removing and installing is identical. Removing - Turn off the ignitio

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     Other information

    Online Car Care Applies to: vehicles with Online Car Care If new messages from Online Car Care are available, they will be displayed in the MMI when you switch on the ignition. Applies to: MMI: To access Online Car Care messages at a later time, select on the home screen: VEHICLE > Settings &

     Refrigerant Circuit Pressures and Temperatures

    General Information   Caution When performing work on refrigerant circuit, observe all generally applicable safety precautions and pressure container regulations. The pressures and temperatures in the refrigerant circuit depend on the current operating conditions (such as engine RPM, cool

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