BMW 7 Series: Modular Design Of CIC Components

Fig. 11: Individual Replaceable Components Of Car Information Computer

CIC COMPONENTS EXPLANATION CHART

1. Replaceable device CIC
2. DVD/CD player including CIC housing cover
3. Front panel
4. Hard disk drive

The components listed above are defined as separate or modular. These components are attached to the main/complete head unit.

Of these components, only the faceplate remains a serviceable and replaceable component. Failure of any other internal component will necessitate the replacement of the entire CIC unit once proper authorization has been obtained through PuMA.

The functions of the individual components are briefly described in the following pages.

The installation and removal instructions for the individual components and the complete CIC control unit are available in TIS (Technical Information System) or the workshop system ISTA.

It is essential to follow ESD (Electrostatic Discharge) guidelines when replacing individual components in order to avoid damage to internal components of the CIC. These requirements also apply when storing or sending back components.

Special packaging (ESD bags, ESD boxes with film or foam material cladding) is available for this purpose and should be used instead of conventional packaging materials.

The following picture illustrates the effects of electrostatic discharge (ESD) on electronic components.

Fig. 12: Effects Of ESD (Electrostatic Discharge) On Electronic Components

ELECTROSTATIC DISCHARGE EXPLANATION CHART

1. ESD symbol (protection measures necessary)
2. ESD damage to a conductor (magnified 5000 times)

Working on Electronic Components

The following requirements must be observed when working on electronic components on the Car Information Computer.

• The work must be performed on a conductive and grounded workbench (special tool 12 7 192 is used for this purpose).
• The grounding cable must be connected to a secure grounding point (water pipe, heating pipe, electric socket ground).
• The person carrying out the work must first put on the grounding cuff in order to ground himself before removing the components from the packaging.
• The electronic components are placed on the anti-static mat which is also connected to a grounding cable.

Fig. 13: Identifying Anti-Static Mat Special Tool 12 7 192

CAR INFORMATION COMPUTER ELECTRONIC COMPONENTS EXPLANATION CHART

1. Anti-static mat
2. Grounding cable for the mat
3. Anti-static cuff
4. Grounding cable for the component

Optical Drive (CD/DVD Player)

The Car Information Computer is equipped with a DVD-ROM player.

The optical drive is used for playing audio and video media.

This drive makes it possible to play the following media file formats:

• Audio CDs (CD Digital Audio)
• Audio CD-ROM with MP3, WMA or AAC files
• DVD Audio (only stereo track if contained on the data medium)
• Audio DVD-ROM with MP3, WMA or AAC files
• Video DVD

Playing video on the (front) CID display is only possible when the vehicle is stationary and in the "Park" position. When the vehicle is moving or the Parking Brake is not on, only the audio track of the video will be played.

Although the CD/DVD drive is no longer used for the navigation system (as in CCC), it may be used to update navigation map data from a navigation DVD.

Fig. 14: Identifying Key Components Of DVD Player Used In CIC System

DVD PLAYER EXPLANATION CHART

1. DVD player
2. Front panel connection
3. Ribbon cable connection, DVD player to CIC head unit

Hard Disk Drive

With the development CIC, a hard disk for storing applications (programs) and data is used in a head unit of a BMW vehicle for the first time.

A 2.5" hard disk drive with a storage a capacity of 80 GB is installed.

This makes it possible to display complex graphics like 3D models in the perspective view of the navigation system.

This system provides the option of converting, storing and playing music tracks.

The hard disk makes it possible to maintain a music collection with a music track database (Gracenote).

The HDD (hard disk drive) also provides a data storage option for the three languages of the voice recognition system.

The hard disk drive is a replaceable component of the CIC. Proper repair instructions and ESD guidelines must be followed when replacing the unit.

The Music collection backup should only be performed by the customer and not the service technician. For more information refer to "MUSIC COLLECTION BACKUP" in the Principles of Operation section of this training material.

The following illustrations show the hard disk location and the individual partitions.

Fig. 15: Identifying Hard Disk Location And Individual Partitions

HARD DISK EXPLANATION CHART

1. Car Information Computer
2. Hard disk (slide-in tray)
3. Pie diagram with individual storage units on the hard disc (partition)

Front Panel

The front panel of the CIC can be replaced separately.

Fig. 16: Front And Rear View Of CIC System Front Panel E6x Vehicle

CIC SYSTEM FRONT PANEL EXPLANATION CHART

1. Front panel - front view
2. Front panel - rear view

NOTE: Currently only the faceplate is a serviceable and replaceable component.

Failure of any other internal component will necessitate the replacement of the entire CIC unit once proper authorization has been obtained through PuMA.

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