Audi A4 Owners & Service Manuals

Audi A4: Sound System

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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

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 Refrigerant R134a Characteristics

Commercial Names and Designations Refrigerant R134a is currently available under the following trade names: H-FKW 134a SUVA 134a KLEA 134a   Note Different trade names may be used in other countries. Of the wide range of refrigerants available, this is the only one which may be used

 Refrigerant Oil

General Information   Caution When handling refrigerant oil, pay attention to local regulations. Refrigerant oil mixes with the refrigerant (about 20-40%, depending on compressor type and amount of refrigerant) and circulates constantly in the system, lubricating the moving parts. Special

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