BlueBus Bluetooth Integration Module for BMW

Bring modern Bluetooth connectivity to your classic BMW without sacrificing the factory look and feel. The BlueBus Bluetooth Integration Module is engineered to work seamlessly with your vehicle's original electronics, providing an OEM style experience with hands-free calling, wireless audio streaming, and expanded convenience features all while retaining your factory controls and displays.

Unlike universal Bluetooth adapters, BlueBus communicates directly with your BMW's I-Bus system, allowing it to integrate with the factory radio, navigation system, steering wheel controls, and onboard displays. Installation is straightforward using OEM style connectors, making it an excellent upgrade for enthusiasts who want modern functionality without modifying the interior.

Features

• OEM-style integration with your BMW's factory electronics
• Compatible with BMW Business CD and factory Navigation systems
• Bluetooth hands-free calling with automatic audio switching
• Emulates the factory telephone system for seamless operation
• Retains support for the original BMW microphone
• Displays caller ID on compatible factory displays
• Displays music metadata throughout the factory user interface
• Wireless audio streaming with exceptional sound quality
• Compatible with both analog and digital (coaxial) BMW DSP audio systems
• User-upgradable firmware for future features and improvements
• Supports comfort functions including:
  • One-touch turn signals
  • Automatic door locking based on vehicle speed
  • Automatic door unlocking based on key position*
• Simple plug-and-play installation using OEM-style connectors
• Fully open-source hardware and software platform
• Premium audio performance designed to match or exceed factory quality

*Comfort features may vary depending on vehicle model and factory equipment.

Technical Specifications

• Microchip BM83 Bluetooth module
• Supports A2DP, HFP, SPP, BLE, and MAP Bluetooth profiles
• DIT4096 S/PDIF digital audio transceiver
• Texas Instruments PCM5122 2.1V RMS DAC
  • 113 dB Signal-to-Noise Ratio
• FT231X USB-to-Serial interface
• Field-upgradable firmware
• Melexis TH3122.4 I-Bus transceiver with hardware collision detection and prevention
• 1 MB onboard EEPROM
• PAM8406 amplifier dedicated for phone call audio
• OEM-quality connectors manufactured by TE Connectivity—the same supplier used by BMW

Vehicle Compatibility

BMW

• 3 Series (E46) — 1998–2006
• 5 Series (E39) — 1995–2004
• 7 Series (E38) — 1994–2001*
• X3 (E83) — 2004–2010
• X5 (E53) — 1999–2006
• Z4 (E85) — 2002–2008
• Z4 Coupe (E86) — 2002–2008

MINI

• R50 MINI One & Cooper — 2001–2006
• R52 Convertible — 2005–2008
• R53 Cooper S — 2001–2006

Other BMW-Based Vehicles

• Range Rover (L30/L322) — 1999–2003
• Rover 75 (R40) — 1999–2005

Limited Compatibility

The following vehicles are supported only when equipped with the BMW CD43 radio. 

• BMW E31
• BMW E36
• BMW Z3

Important Compatibility Note

Some BMW E38 models built before 1998 may use the older M-Bus CD changer communication system instead of the newer I-Bus architecture. These vehicles are not compatible with the BlueBus module without additional modifications. If you're unsure which system your vehicle uses, feel free to contact Race German before ordering.

Upgrade your classic BMW with modern Bluetooth technology while preserving the factory appearance and functionality. BlueBus delivers the features today's drivers expect without compromising the originality of your vehicle.

Operating Instructions

Single Line Radios (Business CD / Tape, MIR, MID)
Navigation Radios 

Installation Instructions

E38/E39 Installation Instructions
E46 Installation Instructions
E53 X5 Installation Instructions
E85/E86 Z4 Installation Instructions