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CD Changer

All E90 vehicles come pre-wired for CD changer.

The option SA672 for the E90 is a new "CD changer for 6 CDs" (CDC). The CD changer is a MOST network node and differs from the MOST-compatible CD changer on the E60 and E63/4 by virtue of its support for MP3 files and WMA files.

The CD changer is located behind a flap on the left in the luggage compartment.

If the vehicle is equipped with the HiFi audio system, the digital data of the CD is sent via the MOST bus to the radio or navigation system. Here they are converted to analog data and output via the amplifier and the speakers.

If a 'Top-HiFi' system (Logic7) is installed, the audio data is transmitted in digital form via the MOST bus from the CD changer directly to the Top-HiFi amplifier, from where it is output. This direct transmission bypassing the radio and the navigation system is possible as data conversion and sound adjustment take place exclusively in the Top-HiFi amplifier.

The CD changer supports playback of MP3 CDs. The MP3 files are decoded in the CD changer.

NOTE: Because MP3s are compressed audio files, it can take the player up to 20 seconds to decompress and read the information from a CD before audio is heard.

The fibre optic conductors for connecting the CD changer are arranged at the fiber optics connector in the luggage compartment such that they are not incorporated in the MOST ring. After retrofitting a CD changer, the fibre optics conductors for the CD changer preparation are unplugged at the fibre optics connector and connected to the MOST ring. Coding of the system will be necessary.

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