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.
2011 BMW 750Lxi 4.4 CFACTORY OEM SERVICE PROCEDURE
F01/F02 Audio/Bus System Overview
INDEX REFERENCE CHART
| Index | Explanation |
|---|---|
| CAS | Car Access System |
| CIC | Car Information Computer |
| CID | Central information display |
| CON | Controller |
| DVD | DVD changer |
| FD | Rear-seat display |
| FD2 | Rear seat area display 2 |
| HiFi | HiFi amplifier |
| HKA | Automatic A/C, rear seat compartment |
| HUD | Head-Up Display |
| IHKA | Automatic climate control |
| KOMBI | Instrument cluster |
| OBD | Diagnosis socket |
| RSE | Rear Seat Entertainment |
| SDARS | Satellite tuner |
| TCU | Telematics control unit |
| TOP HIFI | Top-HiFi system |
| SBX High | ULF Interface box "High" (Bluetooth telephone, voice input and USB audio interface) |
| VSW | Video switch |
| ZGM | Central gateway module |
Key to abbreviations - bus overview
ABBREVIATIONS REFERENCE CHART
| Index | Explanation |
|---|---|
| D-CAN | Diagnosis CAN |
| K-CAN | Body CAN |
| K-CAN 2 | Fast body CAN |
| MOST | Media Orientated System Transport |
| PT-CAN | Powertrain CAN |
| PT-CAN 2 | Powertrain CAN 2 |
Factory Service Tools
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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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