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)91 COMMUNICATIONDESCRIPTION AND OPERATIONMMI BASIC/BASIC PLUS NAVIGATION SYSTEM OVERVIEW
2012 Audi A4 2.0T Avant Quattro
MMI Basic/Basic Plus Navigation System Overview
2012 Audi A4 2.0T Avant QuattroSECTION MMI Basic/Basic Plus Navigation System Overview
- Instrument Cluster Control Module -J285- In The Instrument Panel
- Steering Column Electronics Control Module -J527- On Steering Column At Steering Column Switch
- Multifunction Steering Wheel
- Front Information Display Control Head -J685- In Center Of The Instrument Panel
- Multimedia Control Head -E380- in the Center Console
- Radio, Telephone, Navigation System Antenna -R52- Roof Antenna
- Window Antenna
- Antenna Amplifier 3 -R112- Behind the Left D-Pillar Trim/Luggage Compartment Side Trim Panel
- Front Information Display Control Head Control Module -J523- Inside Glove Compartment
- MMI basic contains the Radio -R- /CD player -R89-
- MMI basic plus Navigation contains the Radio/CD-Player/Navigation System with CD Drive Control Module -J401-
- Data Bus On Board Diagnostic Interface -J533- Behind the Glove Compartment On the Left Side
- CD Changer -R41- Inside the Instrument Panel
- External audio source connection -R199- (AUX IN) inside the center console storage compartment
- Telephone Transceiver -R36- under the front passenger seat
- Digital Sound System Control Module -J525- behind the luggage compartment left side trim
- Digital Radio -R147- behind the left luggage compartment left side trim
RENDER: 1.0x
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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.