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.
General Information: Notes
The system overview of the F01/F02 audio system begins with a general bus overview. It shows the interconnection of all IKT components in the bus system network.
A block diagram of the Car Information Computer is also provided.
Particular reference is made to the individual levels within the CIC head unit:
- User interface
- Application software
- Hardware components
Detailed information can be found in the following pages on the individual circuit diagrams:
- CIC Head unit circuit diagram
- HiFi speaker system circuit diagram
- TOP-HiFi speaker system circuit diagram
- Antenna system circuit diagram
- USB/audio interface circuit diagram
- Smartphone Integration circuit diagram
- DVD changer circuit diagram
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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