The Bluetooth connection harness in this car without telephone prewiring and without X400 plug required a special custom bluetooth harness that was simply connected to a white 12 pin plug and no splicing was required. This harness was custom made to the customers requirements and no splicing was required. Simply unplug a 12 pin power plug and insert the custom harness inline with the existing wiring. Customer provided detailed photos before the custom kit was made for his specific requirements
In BMWs without the X400 plug, (which is typically the BMW E39 with navigation and television), but no prewiring locate the X322 plug behind the navigation computer bracket
Disconnect the X322 bracket and connect inline the bluetooth adapter harness. The connectors for the provided bluetooth telephone harness are identical to the x322 12 pin connectors. Before disconnecting ensure the power light is not flashing on your navigation computer. You can disconnect the car battery if desired but it is not required. Simply unplug the existing socket X322 and connect the male end of the bluetooth harness to the female end of the X322 connector and the female end of the bluetooth harness to the male end of the X322 connector. To Disconnect, locate the locking tabs on either end and gently press while disconnecting. Both connectors have locking tabs on either side that allow for easy unlocking
Once connected slide the two 12 pin connectors together (turn one connector around 180 degrees to mate up with the other connector) with the locking tabs and connect back to the mounting location that this plug was originally found
Connect bluetooth module to bracket. The 2003 E39s with navigation already have the bluetooth module bracket. Use the three mounting holes displayed below
In this custom bluetooth installation, the customer decided to have the pairing button located in the trunk of the car as he preferred to keep the standard Euro Arm rest, and the pairing button is only needed once when you get a new phone. This method is the preferred method of installing bluetooth in a BMW that is not prewired. The pairing button is typically hidden in trunk area and only pulled out again when a new phone is purchased and needs to be paired to the car.
Connect the 54 pin connector to one end of the ULF module, and the cream/purple colored Bluetooth antenna wire to the other end of the ULF module. as shown in the below image.
You'll be placing the ULF module on the left side of your trunk, above the NAV unit in the below picture (right at the top of the stack).
If your car was built after 09/02 production you may already have the bracket in the car. However if before 08/02, you may need the ULF module bracket.. Part #s: 84 13 6 924 547 (nav) or 84 13 6 924 546 (no nav). Many people just install the ULF module with a double sided tape, but the choice is yours.
Then you just slide the clips into their places (you'll see indentations on the mounting bracket that'll help you figure out how the clip is supposed to be put on). Don't plug in the CREAM COLORED FAKRA connector just yet, because it will be in your way of screwing one of the bolts in. Connect the Bluetooth antenna wire to the ULF module and find a suitable location for mounting the Bluetooth antenna. BMW recommends placing the antenna on the rear deck lid center where there is no metal to cover up the Bluetooth antenna between the cabin and the antenna.
Once you are complete, reassemble the vehicle and plug the battery back in. Follow the Paring procedure in the users guide to load your phone into the system
This 2003 E39 Australian model was well optioned with navigation, television, Cd changer, but no telephone prewiring. Car was equipped with R/T and Face voice control button. customer did Not want to change Euro arm rest as shown in completed installed car, and therefore opted for the custom bluetooth kit designed with a wiring harness specific to his exact requirements and preferences.
BMW E39s without telephone prewiring will not have cutout for microphone. The kit will come with the microphone and microphone trim piece however you will need to either cutout the microphone template or order a new one from BMW. This part is typically only about $30USD and is easily replaced
BMW E39s without telephone prewiring may not have telephone face and R/T buttons. While these buttons are not required they are nice to have. the R/T button changes the up and down arrows from radio station selection to Telephone phonebook selection. The Face button when held for 2 seconds will activate voice control of telephone and navigation (if equipped) once the bluetooth system is installed. If you do not have the Face and R/T button these can be simply replaced. The wiring is the same with or without telephone prewiring. Therefore the installation is quite straight forward
Once the bluetooth system is installed the bluetooth and voice control function will operate exactly as it would have normally in a car prewired for telephone.
BMW X400 12 pin plug is typically found in this location mounted on top of the 6 pin plugs shown above .
In addition to the bluetooth system upgrade. This customer also installed the BMW MP3 cd changer offered by Bimmernav. This cd changer was a simple remove and replacement that took no more than 5 minutes and now provides upto 700 minutes of MP3 audio per CD!
Users Manual for the BMW Bluetooth System