BMW Z4 Bluetooth Installation
Installation instructions below are for the BMW Z4 Bluetooth
Click here to buy now.
Although the Bluetooth Kits come with detailed step by step
instructions for installing both the pairing button and eject
box, the below quick pictorial guide will give you a good idea
about the installation in the BMW Z4.
NOTE: Our Bluetooth Kits come with the latest Generation
BMW ULF modules Available
as shown in
the BMW Compatibility matrix (and NOT the problematic
first generation 84 21 954 552 others are selling, Be
careful on getting older ULF modules as some people have had
difficulties and incompatibilities with the old first
generation ULF modules.
Why use Our
The two options for the
install are pairing button and the Eject box install.
The eject box and pairing button installation are the
same, although the
provides a cradle for charging and boosting the antenna of
your cellphone. For those of you who do not want to
mess with installing the Eject box, you could easily find a
suitable mounting location for the 3 series pairing button.
The pairing button can be mounted in any location you choose,
or hidden in the rear compartment .
All North American BMWs
even without BMW phone currently are already prewired for phone. You can verify by finding the
Prewired for BMW Cellular phone in the trunk area.
Prewiring consists of wiring for all telephone equipment, plus
coding for phone and voice recognition. If your BMW is
prewired for phone, and you install a new generation Bluetooth
module, like we sell, it is unlikely that you will need
to have your car coded.
Start your installation by
removing the bottom trunk liner that covers up the battery.
Then remove the trunk liner covers on the front and LEFT side
of the trunk with the TOP FULLY UP.
Next remove Plastic cover that hides
convertible top. Start by disconnecting the cloth cover
that runs across the entire plastic tray. Cloth cover is
located where my thumb is in the picture and the base of the
cover just pulls straight out. Then remove the the clips
on both sides that holds in the trunk cover. Press up on
the clips shown in the image, and unclip the plastic tray to
remove. It is easiest to remove the plastic tray if it
is up halfway.
Remove the one 11MM nut that holds, the
assembly in place, to allow the trim cover to be pull out from
the left side.
Remove the Torx 15 screws that hold the
convertible top switch
Disconnect the switch, by unplugging the 3
Lift on the trunk liner from the bottom
left direction to reveal the ULF module mounting location.
You should have the bracket installed from the factory as
shown below. Remove the 3 10 mm nuts to remove the
Bracket. If you do not have the bracket you can order
the following part number 84 10 6 922 719 from your local
Connect the 54 pin connector to one end
of the ULF module and the cream/purple colored Bluetooth antenna wire
to the the other end of the ULF module.
Mount the ULF module to the Bracket using
the 3 mounting holes. Once youc onnect the Bluetooth
antenna wire and the 54 pin connector on the ULF module, and mount the bracket
back in its original location. If you had BMW Assist, you will need to remove the
Assist module and replace with the Bluetooth ULF module.
Connect the Bluetooth antenna to the
Bluetooth antenna wire and mount in the electronics access
hole. Double sided tape works really well mounting this
Bluetooth antenna mounted.
In this SAME hole, although on the RIGHT side, locate the 18
pin connector and the FAKRA SMB antenna connector.
(sorry but hard to get a good photo of it). Remove the 18 pin
connector from it's mounting location in order to make it easier to connect to the new Bluetooth
eject box. To remove the 18 pin connector, just turn
clockwise about 30 degrees to release the mounting tab
One Z4 owner sent in a tip to gain
access to the 18 pin connector by removing the passengers side speaker grill.
With the speaker grill removed you may be able to make the
connection a little easier. ---*Spatula not included in
Connector shown removed. (disregard
extra wire in picture)
To mount the Bluetooth eject box inside the
cabin (Or E46 pairing button), open the storage compartment
and locate the Telephone wiring access hole. Push the 18
pin connector on the Bluetooth eject box thru the hole.
I found it easier to remove the cover from
the 18 pin connector and press thru the Telephone wiring
access hole. Your cover will be black in color and not
blue as shown below
Back in the trunk, put the cover back on the 18 pin connector
and connect the 18 pin
connector from the eject box to the car wiring 18 pin
connector. Then connect the eject box FAKRA SMB antenna
wire to the car's FAKRA SMB antenna wire.
If doing the Z4 eject box installation
install your mounting trim piece on the rear compartment lid.
If you did not have a BMW phone system before and your trim
lid is not configured to take the eject box, you can easily
replace the Fold Down Door that is setup to hold the Bluetooth
eject box as shown below.
Part numbers are as follows:
51 46 7 066 180 Black
51 46 7 066 181 Gray
51 46 7 066 182 Beige
If installing the E46 pairing button, you
can find any suitable location, for mounting this small
button. I recommend mounting this button in the little
coin box just forward of the storage compartment or on any
other small replaceable trim piece. Click here for the
Pairing button cutout template
If you do not have a microphone, remove the
overhead lights and install the microphone. If your Z4
was built BEFORE 09/03 only. To remove the lights lever
down the lights from the rear. If built AFTER
09/03 your microphone will be mounted on the steering column.
If you have BMW Assist now, you will already have the
When mounting the antenna, make sure that
you have the ARROW on the microphone pointing forward
Once you have tested
your system, you can put everything back together the opposite
of how you took it apart
Pairing procedure and operational videos