65 06 04 (101) Radio
65 06 04 (101)
Radio
E87, E90, E91, E92, R56
Introduction
There are several different radio stages for the BMW 1-Series, the BMW 3-Series and the MINI.
> - E87
The BMW 1-Series is also available without a radio. If it is supplied without a radio, it does not feature a radio wiring harness.
The following options are available for the BMW 1-Series:
- Option 667 BMW "Audio" radio (without drive)
- Option 662 BMW "Business CD" radio (with CD drive)
- Option 663 BMW "Professional" radio (with CD drive)
- Option 651 "MD drive", only in conjunction with option 663 BMW "Professional" radio
> - E90, E91, E92
The BMW 3-Series is equipped with the BMW "Business CD" radio, even in its basic equipment version. The US version even has the BMW "Professional" radio. All other options available for the BMW 1-Series are also available for the 3-Series.
> - R56
The R56 is equipped with the MINI "Wave" radio in the basic equipment level.
The following options are available for the R56:
- Option 6FB MINI "Wave CD" radio (with CD drive)
- Option 6FC MINI "Boost CD" radio (with CD drive)
A MOST bus is provided from the BMW "Professional" or MINI "Boost CD" radio upwards. The radio is the data interface (gateway) between the MOST bus and the K-CAN.
> - E87, E90, E91, E92:
> - R56:
Brief description of components
The radios comprise the following components:
- Radio
The tuner is able to receive AM and FM stations. The tuner also receives additional information such as RDS (Radio Data System).
> E87, E90, E91, E92
> R56
- Amplifier
Amplifiers are integrated in the radios. The stereo audio system can be operated with these amplifiers. For the HiFi and Top-HiFi audio systems, external amplifiers are used.
- Audio systems
Various audio systems can be combined with the radios.
> E87, E90, E91, E92
> R56
The radios receive signals from the following components:
- Aerials
Most aerials are integrated in the rod aerial, roof-mounted aerial, side window (rear) and in the rear window.
[for further information, please refer to SI Technology (SBT) 65 02 05 114] Description and Operation
- AUX-In connection
An external audio device can be connected to the AUX-In connection (e.g. an MP3 player)
- Telephone
The telephone supplies the signal to switch the radio to mute. The telephone also sends the low-frequency output signal to output calls via the loudspeaker. The signals are transmitted directly. From BMW "Professional" or MINI "Boost CD" radio upwards, signals can be transmitted through the MOST.
- CD changer
> E87, E90, E91, E92: from BMW "Professional" radio
The CD changer supplies low-frequency output signals via the MOST for activating the output stages.
> R56: from MINI "Boost CD" radio
The CD changer on the R56 does not need a magazine. Up to 6 CDs can be fed in turn into the slot of the CD changer (please refer to the Owner's Handbook).
The CD drive is able to play standard audio CDs or CDs with compressed audio data (MP3/WMA). WMA (Windows Media Audio) is a compression standard, like MP3 (MPEG Layer 3, i.e. Moving Pictures Expert Group).
- DSC: Dynamic Stability Control
The Dynamic Stability Control control unit sends a road speed signal. This signal is used to control speed-dependent volume control.
- SZL: Steering column switch cluster
The steering column switch cluster supplies the signals for the multi-function steering wheel (MFL). The information is sent on the K-CAN and processed by the radio.
- KOMBI: Instrument cluster
> E87, E90, E91, E92
The instrument cluster is the unit master in the vehicle. The time, external temperature and consumption values, for example, are sent to the radio.
These settings can also be made via the radio with the BMW "Professional" radio and higher.
> R56
On the R56, the time, outside temperature and fuel consumption data (for example) are transmitted by the auxiliary instrument (KOMBI2) to the K-CAN.
Depending on the equipment fitted, the instrument cluster (KOMBI) may have recesses for:
- Radio control panel
- Central Information Display (CID) on vehicles with Car Communication Computer (CCC)
The radios output the following signals via the loudspeakers:
For all radios:
- Audio signals
From BMW "Professional" or MINI "Boost CD" radio:
- Park Distance Control (PDC)
- Acoustic warnings (e.g. acoustic signals)
System functions
BMW "Audio"/MINI "Wave" radio
BMW "Business CD"/MINI "Wave CD" radio
These radios are almost identical in their functions and construction. They are operated in the same way as radios that have featured in other models, such as the E46.
The radios do not have a digital sound processor (DSP) to generate sound. Therefore, they do not support signal generation as is necessary for the Park Distance Control System (PDC), for example. The signal tones in this case are generated by the corresponding control units themselves.
BMW "Professional" / MINI "Boost CD" radio
The BMW "Professional" radio and MINI "Boost CD" radio are radios for the MOST network.
The CD drive can play both standard audio CDs and CDs with compressed audio data (MP3/WMA).
The BMW "Professional" radio and MINI "Boost CD" radio have the following functions:
Gateway
The radio forms the interface for data exchange between the MOST bus and the K-CAN. The two bus systems use different data transmission rates and data formats. In order to communicate with both systems, the data from one bus is converted to a compatible format for the other in the radio.
- System master
The system master links the individual control units.
- Power master
The power master initialises the network and switches the buses on and off (wake-up, sleep mode).
- Network master
The network master controls and monitors the MOST bus. Each time the network is started up, the system configurations are detected and compared with a stored specified configuration. If systems do not work correctly, these are reset and separated from the MOST bus. Each error or deviation from the specified configuration is saved in a fault memory for the MOST bus.
Audio system controller
- Audio master
The audio master collects, evaluates and controls all audio signals in the vehicle. The audio master outputs the signals in order of priority via the loudspeakers. The audio master also produces additional audible signals for warnings and for Park Distance Control (PDC). By mixing or fading in and out, a "softer" audible change is obtained between the signal sources.
- Connection master
The connection master distributes the signals of the audio sources and the audible signals to the loudspeakers. The connections to digital audio sources are made, disconnected and enabled by the connection master.
The signals are transmitted to the loudspeakers in the following way:
- Front left and right:
Acoustic signals, telephone
- Front and rear: Signals from Park Distance Control (PDC)
- All loudspeakers: All sources in the "Entertainment" menu, traffic reports
Notes for service staff
Service staff should note the following points:
- General note:
- Diagnosis: ---
- Encoding/programming: ---
Subject to change.