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 MANUALSBMW1999328I 2D CONVERTIBLE, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALBODY ELECTRICALBODY ELECTRICAL CONTROL SYSTEMS - OVERVIEWE46 DRIVER INFORMATIONMK-3 NAVIGATION SYSTEMSYSTEM COMPONENTSINFORMATION/BODY BUS INTERFACE
1999 BMW 328i 2D Convertible, Automatic
Information/Body Bus Interface
1999 BMW 328i 2D Convertible, AutomaticSECTION Information/Body Bus Interface
The navigation computer is integrated into the vehicle bus system as it's main communication link with the vehicle.
Communication occurs with the following modules:
- BMBTÂ - Control Inputs
- Radio - Display Data
- GMÂ - Door Open
- IKE/Kombi - On-Board Computer Data
- Telephone PSE Box - Monitor Display Data, Mayday Function
- DISplus - Coding Data
PSE = Portable Support ElectronicsÂ
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.