Hi! This is Brian, and today we're going to show you how to install the Bimmer-Tech
rear view camera MMI on an E90 335i. Before working on any electrical
components in your car, always be sure to disconnect the negative battery terminal
with a 10mm socket.
We're going to start at the trunk and work our way inside the car.
The first step is to remove the emergency release trunk handle by pressing on the tab and releasing the wire.
In the E90, there are eight plastic fasteners and two T25 screws. Go
ahead and remove them as shown.
Next, remove the plastic cover to gain access to the trunk handle.
The factory trunk handle has tabs on the top and bottom that's secured in place.
Gently press the tabs in and work the handle out, being careful not to break any of the clips.
Once the new handle has been removed, gently unclip the connection and
plug in the new handle, then route the additional wire inside the hole before
gently pressing the new handle into place.
When installing the new handle, it's
easiest to install the bottom clips first then press in the top clips.
For added security, you can heat shrink or electrical tape the trunk handle connection.
Route the camera wire down the existing wiring harness securing it
with zip ties or electrical tape. In the E90, you'll find a rubber hose that
houses the wiring harness. Gently loosen the top and the bottom of this. We're
going to route our camera wire through this for a clean install.
Now, we're going
to fish the wire through the trunk using a sturdy wire. Once you've routed your
fishing wire to the top opening,electrical tape your camera wire and
gently guide it down.
Back in the trunk, we're going to remove the four plastic
fasteners that hold the trunk liner in place with our Bimmer-Tech trim tool.
Once these are removed, gently pull the liner down. Next, take your extension
cable, and gently feed the camera connection upward. This needs to be
routed where we remove the rubber hose earlier.
Back outside, fish your sturdy wire
gently through the rubber hose, being careful not to damage any of the wires.
Once it's all the way through, tape the camera extension wire to this and gently
pull it through.
Connect the camera plug to the extension wire and heat shrink it or wrap it with electrical tape.
Once it's secure, reinstall the rubber hose.
Now the that camera is installed, we're going to run the wires to the front of the car.
Start by removing the rear seat's bottom by pulling up firmly in the middle of
the left and the right seat.
Carefully move it out of the way.
This E90 has a fixed rear seat back, so I'll show you how to route the wires through.
What you want to do is use a very thin hanger or a fishing wire to help guide
the wire through this location. Because there is a leather seat on the other
side, be sure to wrap any potentially sharp or jagged areas with electrical
tape or heat shrink. If your vehicle is equipped with folding rear seats, the
side backrest can easily be removed to route wires. For more details be sure to
check out our F30 installation video. Back in the rear seat, we can now see the
wires. Gently pull them all the way through.
Now we need to remove the lower
plastic trim. Gently remove the plastic fastener, then gently pry up using your
hand or trim tool to release the additional clips.
Remove the seatbelt cover trim by releasing the clip on the lower right
and left. Once the clips are released, slide this piece down to remove.
Remove the passenger front floor trim by gently prying up with your Bimmer-Tech trim tool.
Then remove the last piece of trim located in the passenger footwell.
Now that all the trim is removed, route the wire under the carpet.
At this point, we
need to remove the glovebox. Start by removing the small thin piece of trim
that surrounds the cupholders by using a Bimmer-Tech trim tool. This piece is very
thin so be careful not to break it. Once this is removed, go ahead and remove the
two Phillips head screws that hold each cup holder on, and then slide the cup holders out.
Next, remove the six T20 screws that secure the glovebox in place
Four of the T20 screws are located at the top. Then there's one at the left and one
at the right hand side. Lastly, remove the two T20 screws that hold the lower trim in place.
Gently slide the glovebox out, and rest it on its side.
Now it's time to
remove the main dash trim. To do this, gently insert your Bimmer-Tech trim tool
behind the trim, and work your way across the top and bottom to release the clips.
Unplug your start/stop button, then disconnect the two other connections
located behind the hazard button.
Once the trim has been removed, remove the
two T20 screws that secure the iDrive in place, and gently rotate it towards you to remove.
Remove the video cable and the other connection from the iDrive.
At this point, we need to run the new video cable, retrieve the existing video cable,
and run the new power cable up behind the iDrive screen. We're going to do this
by fishing a wire from under the glovebox to behind the iDrive screen.
Once the wire is behind the screen, we're going to electrical tape the cables to
the wires to assist in this process. The video cable has two connections, so be
sure that you have it inserted correctly by doing a test fit. Now that the new
power cable is run, connect the Y connection first to the existing power cable.
Then connect it to the new power cable.
Finally, clip the other end into the iDrive screen, and install the new video
cable. Rotate the iDrive back into place, and reinstall the screws.
The next step is to install the multimedia interface. Before we can set
this up, make sure that the DIP switches are set to the correct position for the
instructions you received. Now that the multimedia interface is set
up, go ahead and plug the RCA harness into the AV in and out.
Next, find the RCA
labeled Rear C, then plug the yellow RCA from your camera's extension cable in here.
Then plug the white connector from the rear view camera extension cable
into the slot labeled rear.
Following that, plug in your new power cable that
stems from the Y connection behind the iDrive screen.
Plug your new video cable
into the slot labeled LCD Out.
Run your mode selection switch to your desired
location and plug it into the slot labeled Mode. The IR cable is next. This
is the receiver for your remote. Run this cable to your desired location, being
sure that the bulb of the receiver will be in direct sight of your remote. Plug
this into the slot labeled IR. Finally, plug in your existing video cable into
the LCD In slot, and secure the multimedia interface in your desired
location. Here's a diagram to show how the video cables are routed. The existing
video cable that was disconnected from the iDrive screen plugs into the section
labeled LCD In on the multimedia interface. The new video cable is then
connected to the iDrive screen, and then into the section on the multimedia
interface labeled LCD Out. Here's an example of a mounting location that
still leaves room for potential add-ons, such as a SmartView. At this point, the
installation is complete. Replace all of the removed trim in the reverse order.
Thanks again for watching, and let us know if you have any questions!