BMW 7 Owners & Service Manuals

BMW 7 Series: System Overview

System Overview
Fig. 2: CIC System Block Diagram

CIC SYSTEM EXPLANATION CHART

  1. Central information display (CID)
  2. Car Information Computer (CIC)
  3. User interface (BO)
  4. Application software
  5. Hardware

System Overview
Fig. 3: Bus Overview E9x And E8x (Not Including E83, E85, E86) Model Series, CIC

BUS EXPLANATION CHART

ACSM - Advanced crash and safety management
CAS - Car access system
CDC - CD changer
CID - Central information display
CIC - Car Information Computer
CON - Controller
FS - MOST direct access
JB - Junction box
SDARS - Satellite radio tuner
TCU - Telematics Control Unit
TOP-HiFI - Top-HiFi amplifier
SBX-High - USB interface box High

System Overview
Fig. 4: CIC System Circuit Diagram, In E9x And E8x Model Series (Not Including E83, E85, E86)

CIC SYSTEM EXPLANATION CHART

  1. Instrument cluster
  2. Dynamic stability control
  3. Junction box
  4. Central information display
  5. Car Information Computer
  6. USB Import/Export jack, glove compartment
  7. Future antenna expansion
  8. Microphone for hands-free facility
  9. Controller
  10. AF output for audio jack (standard equipment) if no USB Audio interface is installed
  11. Antenna diversity module with antenna amplifier
  12. MOST distributor in rear area
  13. OBD interface (including Ethernet connection to CIC)
  14. AF signals to speakers
  15. MOST direct access
  16. Footwell module
  17. Steering column switch cluster

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     System Components

     Car Information Computer

    Fig. 5: Front View Of CIC The design principle of the CIC is similar to a personal computer, the Car Information Computer contains a processor, RAM (memory) modules and other peripheral components.

     Modular Design Of CIC Components

    Fig. 11: Individual Replaceable Components Of Car Information Computer CIC COMPONENTS EXPLANATION CHART Replaceable device CIC DVD/CD player including CIC housing cover Front panel Hard disk dri

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     Removing And Installing/Replacing Evaporator For Rear Air Conditioner

    Necessary preliminary tasks Remove REAR AIR CONDITIONER REMOVE RIGHT FLAP ACTUATOR DRIVE Release screws (1) on flange holder (2). Installation: Make sure flange holder (2) is correctly seated in designated guide on rear air conditioner housing. Fig. 186: Identifying Flange Holder Screws Unfas

     Welding In Reinforcement Plate (Steel Plate)

    In the case of a partial replacement piece, a body component is cut at a point described in the repair instructions. A reinforcement plate is welded in to ensure sufficient strength. Follow notes for welding steel parts. NOTE: The following illustrations serve as general illustrations of reinfor

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