Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2012A4 2.0T AVANT QUATTROREPAIR AND DIAGNOSISELECTRICALHORNSCOMMUNICATION (AVANT)
2012 Audi A4 2.0T Avant Quattro
Communication (AVANT)
2012 Audi A4 2.0T Avant QuattroSECTION Communication (AVANT)
- 91 Communication
- General Information
- Antenna System
- Cd Changer R41
- External Audio Source Connection -R199-
- Internet Access Control Module -J666-
- Microphone Unit In Front Roof Module -R164-
- MMI Infotainment System Through 10.31.2008
- MMI Infotainment System From 11.03.2008
- MULTIFUNCTION Steering Wheel
- Navigation System Through 10.31.2008
- Navigation System From 11.03.2008
- Radio System
- Rearview Camera System
- Rearview Camera System, Calibrating
- Sound Systems
- Speech Control System
- Telephone System Through 10.31.2008
- Telephone System From 11.03.2008
- Description And Operation
- Antenna Overview
- Antenna Connectors
- Concert/Symphony Connectors
- Display, Connectors
- External Audio Source Connection -R199- Connectors
- Internet Access Control Module -J666- Connectors
- MMI Basic/Basic Plus Navigation Component Location Overview
- MMI Basic/Basic Plus Navigation System Overview
- MMI Basic Plus Connectors
- MMI Basic Display Connectors
- MMI Cd Changer -R41- Connectors
- Multimedia System Control Head -E380- Connector
- MMI Overviews And Connectors Through 10.31.2008
- MMI Overviews And Connectors, From 11.03.2008
- MULTIFUNCTION Steering Wheel Overviews
- Navigation System Overviews And Connectors
- Component Location Overview, Through 10.31.2008
- Component Location Overview, From 11.03.2008
- MMI Navigation, Basic Plus, System Overview
- MMI Navigation System Overview, Through 10.31.2008
- MMI Navigation, Minimum Equipment System Overview, From 11.03.2008
- MMI Navigation, Maximum Equipment System Overview, From 11.03.2008
- MMI Navigation Connectors, Through 10.31.2008
- MMI Navigation Connectors, From 11.03.2008
- Navigation Basic Plus Connectors
- Radio Component Locations Overview
- Radio System Overview
- Rearview Camera System Overviews And Connectors
- Sound System Component And System Overviews
- Sound System Connectors
- Speech Control System Overviews And Connectors
- Telephone System And Component Overviews
- Component Location Overview, Through 10.31.2008
- Component Location Overview, From 11.03.2008
- BLUETOOTH Telephone Overview, Through 10.31.2008
- BLUETOOTH Telephone Overview, From 11.03.2008
- Can BLUETOOTH Hands-Free Calling Overview
- MMI BLUETOOTH Hands-Free Calling Overview
- Can Cell Phone Preparation Overview
- Cell Phone Preparation Preliminary Setup Overview
- Microphone Unit In Front Roof Module -R164-, Through 10.31.2008
- Microphone Unit In Front Roof Module -R164-, From 11.03.2008
- MMI Cell Phone Preparation Overview, Through 10.31.2008
- MMI Cell Phone Preparation Overview, From 11.03.2008
- Telephone System Connectors
- BLUETOOTH Telephone, Through 10.31.2008
- BLUETOOTH Telephone, From 11.03.2008
- Cell Phone Preparation Preliminary Setup
- Telephone Amplifier -R86-, Through My 08
- Telephone Amplifier -R86-, From My 09
- Cell Phone Preparation, Can, Through My 08
- Cell Phone Preparation, Can From My 09
- MMI Cell Phone Preparation, Through 10.31.2008
- MMI Cell Phone Preparation, From 11.03.2008
- Can BLUETOOTH
- MMI BLUETOOTH Hands-Free Calling
- Specifications
- Removal And Installation
- Antennas
- Cd Changer -R41- Through 10.31.2008
- Cd Changer -R41- From 11.03.2008
- Front Information Display Control Head -J685- (Display)
- External Audio Source Connection -R199-
- External Audio Source Connection -R199- Aux In
- External Audio Source Connection -R199-, Interface
- Front Information Display Control Head Control Module -J523-, MMI Basic
- Front Information Display Control Head Control Module -J523-, Through 10.31.2008
- Information Electronics Control Module 1 -J794-
- Internet Access Control Module -J666-, From My 13
- Multimedia Control Head -E380-
- MULTIFUNCTION Steering Wheel
- Navigation System With Cd Drive Control Module -J401-, MMI Basic Plus
- Navigation System With Cd Drive Control Module -J401-, MMI Through 10.31.2008
- Radio
- Radio, MMI Through 10.31.2008
- Radio, MMI From 11.03.2008
- Rearview Camera System Control Module -J772-
- Rearview Camera -R189-
- Satellite Radio -R146-, MMI Through 10.31.2008
- Speakers And Sound System Components
- Digital Sound System Control Module -J525-, Can
- Digital Sound System Control Module -J525-, MMI Through 10.31.2008
- Digital Sound System Control Module -J525-, MMI From 11.03.2008
- Subwoofer In Rear Shelf -R157-
- Rear Midrange Speaker
- Rear Mid-Bass Speaker
- Rear Treble Speaker
- Front Mid/Low Range And Front Bass Speakers
- Front Treble Speaker, Band & OLUFSEN
- Front Midrange And Treble Speakers
- Center Mid/High Range Loudspeaker -R158-
- Speech Input Control Module -J507- Through 10.31.2008
- Speech Input Control Module From 11.03.2008
- Telephone System Components
- Special Tools
- General Information
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.