Audi A4: Sound System
- Overview - Sound System
- Component Location Overview - Sound System
- Control Module/Digital Sound System Amplifier, Removing and Installing
- Left and Right Rear Treble Speaker -R14-/-R16-, Removing and Installing
- Front Midrange Speaker, Removing and Installing
- Subwoofer -R211-, Removing and Installing
- Effects Speaker, Removing and Installing
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Overview - Sound System
The following systems are offered:
8RM - Basic sound system.
9VD - Standard sound system.
9VS - Premium sound system, Bang & Olufsen.
8RM - Basic Sound System
One speaker in
Component Location Overview - Sound System
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
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
SEE MORE:
Battery Charger -VAS5900- Support Mode
General Information
The support mode provides the vehicle electrical system with
voltage when the Battery -A- is removed or disconnected.
For more information. Refer to the Battery Charger -VAS5900-
Operating Instructions.
The support mode is used for the following situations:
Vehicle electrical
Refrigerant Circuit, General Precautions
General Information
Ensure absolute cleanliness when working.
Wear safety goggles and gloves when working with refrigerant
and nitrogen.
Workshop extraction systems are to be switched on.
Use the service station to discharge the refrigerant
circuit, only then open screw connections and replac
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