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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 10-15-2004, 05:04 PM   #1
Technic
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OEM Navigation retrofit guide

After researching for a little over a year the way of retrofitting the OEM Nav first to my 330i and now to my M3, luckily BMWAG came up in January of 2004 with a complete retrofit kit that includes a simplified harness that just plugs into the existing Audio/I Bus harness, the 16:9 display with CD player, the MKIV GPS receiver/DVD computer, the Professional radio (not Business), all brackets, bolts, connectors, plugs and installation manual for an all inclusive set.

For those that also have been researching a way of retrofitting Nav in their 3 Series you will inmediately notice how less complicated and time consuming this installation is compared to the old way of unplugging the current non-Nav harness from all its components and installing one built for a Nav car.

This is a simple guide of my installation, with tips to facilitate its reproduction in your car.

Disclaimer (copied verbatim from this DIY) :
Quote:
While I think this process is pretty easy, you need to read through the directions and evaluate it yourself to decide whether or not you can do it. The details presented here are believed to be correct but they are not not guaranteed to be correct. I am not responsible for any damage that you may do to your car or injury that happens to you as a result of following these directions. Proceed at your own risk.
Preliminary steps:

The very first thing that anybody should do before attempting to do this retrofit is to read and study the installation manual (thanks to Santiago for hosting this document). Once you familiarize well enough with the steps to follow you will get the best results in the least amount of time.

I did this installation by myself; if you can get some help from friends knowlegeable and careful enough, the time and effort will be greatly reduced. However, the main idea is to get a quality and reliable job performed, not to finish ASAP.

Disassembly:

Having the BMW TIS/ETK software and/or the Bentley manual for E46's, although not required, can further simplify the overall installation procedures. BMW TIS/ETK CD's can be bought for some $20.00 at Ebay.

At no time you should insert your key in the ignition during disassembly.

If your car have manual seats, disconnect the negative post of the battery before step 1 below. If your car have power seats, please follow the steps below:

1) Remove driver's seat. (TIS 52 13 000)

There are 4 bolts on each corner of the rails. You will need the battery power to move the seat back and forth to gain access to the bolts. Once unbolted, tilt the seat back to disconnect the main plug underneath.

2) Disconnect negative battery terminal from car chassis.

Once disconnected, cover it with electrical tape.
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Old 10-15-2004, 06:21 PM   #2
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3) Remove left inside door(s) rocker panel strip (item #1 below). (TIS 51 47 000)


This strip have to be slided towards the front of the car first and foremost and then pulled up. Otherwise you will break it. Once removed you will have easy access to the carpet.

4) Remove the rear seat bottom cushion (item #1 or #4 below) and left side cushion (item #7 below). (TIS 52 24 005)


Just pull up the bottom seat and slide forward. Before the left cushion can be removed the top plastic cover have to be removed (item #10 above). Once this is done (one clip) pull the top of the cushion out and then up in that order. Otherwise its bottom tab will be broken.

5) Remove decor trim and rear left side panel (if Coupe or just the decor trim if Sedan)

6) Remove center console, shifter trim and storage assembly below radio-A/C unit. (TIS 51 16 210)

Start with the shifter unit (shown in the previous step), follow with the center console (where the armrest is, you do not have to remove the armrest, only item #7 and its subassemblies shown below) and then with the center storage assembly in front of the shifter.


The trick of the center assembly removal is that there are 4 screws at the bottom and in the top. You only can see the bottom two screws once you remove the shifter trim. The other two are behind the top cubicle (above the row of DSC/HK/heated sets buttons, below items #3, #4 or #15 depending of your vehicle).


Open the lid, and press up hard on the inside top front corners of the rubber cubicle and then pull forward; it will come off. The two screws are behind this separate assembly.

7) Remove Radio and Climate Control panel (TIS 65 11 030)

The trick is to remove first the air vents above the radio. Remove the two screws above the radio and pull the vents up and forward. Once this is done the vents are no longer in the way of the radio, Just pull the radio out, disconnect the antenna and main plug and then pull the climate control out. Disconnect its connectors and relocate towards where the top cubicle below the A/C controls where. That's going to be new location of the climate controls.

8) Remove glove box (TIS 51 16 360)

Six screws attach the glove box to the dash: three on the top, two deep into both sides and a single one on the bottom right.


9) Remove both C pillar covers

These covers have a Torx screw behind the light fixture. Remove the light fixture (clips) and unscrew this screw before pulling out the trim (two clips attach it to the pillar, item #8 below)


10) Remove rear shelf (item #1 below)

The rear shelf is secured by four plastic clips at the front (towards the front of the car) attaching the plastic trim item #6 below, the three child seat anchors and a single screw centered thru the metal shelf underneath.


If your car has the HK subwoofer, you will need to remove the sub unit (item #1) to gain access to this screw.


9) Remove left trunk liner (item #1 below) (TIS 51 47 151)


If you do not have the OEM CD changer/Assist preparation in your car, you will need to buy a new trunk left trim (the one with the door).

Once you remove all these parts you Coupe should look like this...
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Old 10-15-2004, 06:41 PM   #3
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Harness installation:

Is as easy as following this document.

Notes:

a) The only part of this retrofit that is absurd is the connection of the telephone/CD Changer wires to the new harness (page 10, top illustration). Why BMW did not attached the same connector as the one in the main harness to make it just "plug and play" like the main connector but force the installer to remove pins and wires from one connector and create another is a mystery to me, especially when plug X13321 have the same number of wires as branch A3.

b) The section that explains where branch A7 connects is not very illustrative. Joint connector X428 is located on top the fuse box. Pull the fuse box further down (over its detent, it will not break) and connector X428 is the big junction box snapped on top. Branch A7 is connected where all the blue/yellow wires are located. If there is no free space left, use one of the joint tap connectors supplied with the kit and connect this wire to another blue/yellow.

I got the location of this joint connector from the main tech of my local dealer...

See photo below for location:
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Old 10-15-2004, 07:22 PM   #4
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Re-assembly and function check:

If the installation document is followed step by step, all the components should be installed and connected at this step.. Before putting everything back together I also installed the SES voice recognition module. It is the silver box shown in the photo below on the upper right corner (above and slightly to the right of the shock tower. Its 54 pin blue connector, with a shorting plug is inside the cubbyhole above that shock tower. Remove the shorting plug and plug the module... and that's it.

1) Re install the driver seat by just plugging the connector under it.

2) Check that all connections are made, secured and visually inspect that there is no wire chaffing or breaks in both the main and add on (new) harness.

3) Reconnect the negative battery terminal.

4) Finish bolting down the seats.

5) Turn ignition to the ACC position.

6) The screen should come on showing that the firmware CD has to be loaded for full functionality. The radio should work however.

7) Load the CD-ROM included in the kit into the DVD Computer. DO NOT UNDER ANY CIRCUNSTANCE REMOVE THE KEY OF THE IGNITION DURING THE FIRMWARE LOADING SECUENCE. It should take some 6 minutes max to load the firmware.

8) Once the firmware is loaded, you should see the main screen shown below. Go to the GPS Navigation using the right knob and press it. The screen informing to load the DVD map CD (included) should come on. Load the DVD and really wait some time. In my case it took some a couple of hours to finally read the DVD, but it did it.

9) Check the functionality of the rest of the NAV/Radio/CD/GPS/Telephone (if so equipped) functions using the OEM User's manual. It is kind of old, but it covers most of the important features of the system.
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Old 10-15-2004, 07:24 PM   #5
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Function check (continued):
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Old 10-15-2004, 07:28 PM   #6
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Final reassembly and dealer programming:

Once the system is running and working, remove key from ignition and proceed to reassemble the interior, front to back.

Take car to dealer to be programmed to be in sync with the rest of the car systems, especially the ASSIST system. It is only one hour of labor... at the absolute most.

At the end you should have a full OEM Navigation system integrated to your car.

Details:

1) Ebay final bid price: $2035.00

2) Seller: postgolf

3) Ebay item number: 7926128105 (part numbers and components included)

3) Replacement console for the Climate Control unit part number: 51-16-7-001-408 (Coupe)

Quote:
Final disclaimer:

This installation is primarily focused on my 2004 M3 with ASSIST. All references are concentrated and meant to apply to my particular car and configuration. Please be aware that your car is different and some steps are different in application and parts. This installation is not, in anyway, covered by BMW warranty due to the simple fact that the Navigation components were not bought in an authorized BMW dealer.
Good luck!
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Last edited by Technic; 10-15-2004 at 07:57 PM.
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Old 10-15-2004, 08:12 PM   #7
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Technic, very well done.

Congratulations. This deserves to be made as a sticky or permanently hosted somewhere. With your permission I'll grab your text and images and recreate this on my web server if this doesn't become a sticky. It will obviously be all attributed to you.
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Last edited by Santiago; 10-15-2004 at 08:14 PM.
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Old 10-15-2004, 08:37 PM   #8
Technic
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Quote:
Originally Posted by Santiago
Technic, very well done.

Congratulations. This deserves to be made as a sticky or permanently hosted somewhere. With your permission I'll grab your text and images and recreate this on my web server if this doesn't become a sticky. It will obviously be all attributed to you.
Thanks Santiago... please correct any misspellings or bad grammar that you can find if you end up copying it if you will. I tried to catch most of them but I see that I couldn't get them all, and it's too late to edit.
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Old 10-15-2004, 09:35 PM   #9
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Technic,
Thanks for the great DIY. I am sure that it will persude many of us to consider doing the NAV Retrofit. Great job.
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Old 10-16-2004, 12:41 AM   #10
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technic, an absolutely wonderful job!

i am going to order the retrofit kit from the ebay seller you recommended, but i was wondering if his kit included everything in order to do he install?

i know you said that you had sourced some parts from overseas, but then found this seller.

excellent write up, thank you again.

oh and what's the difference between bmw business and professional radios?
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Old 10-16-2004, 08:36 AM   #11
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Quote:
Originally Posted by m3ryder
technic, an absolutely wonderful job!

i am going to order the retrofit kit from the ebay seller you recommended, but i was wondering if his kit included everything in order to do he install?

i know you said that you had sourced some parts from overseas, but then found this seller.

excellent write up, thank you again.

oh and what's the difference between bmw business and professional radios?
Thanks guys!

M3ryder: his kit includes all the electronics, software (CD and DVD) and installation hardware (harness, brackets, botls, screws, tie wraps, T taps, connectors and foam insulator). Compared to the OEM kit part number 65 90 0 391 113, which his kit is based and the intruction manual refers, the difference is that he is including the 16:9 display and CD player unit in his kit, whereas the OEM kit does not.

You still have to buy from the BMW dealer the left trunk trim for CD Changer/Navigation (some $50.00) if you do not have it already in your car and the front storage console to reposition the climate control unit (some $40.00).

The main difference that I can notice between the Professional vs. Business is a better frequency response in the audio. The tweeter have better definition and the bass is less forced and better punch, IMO. Professional also have a couple of features on top of the ones in the Bussiness, like the RDS section which have two more options. I cannot find an updated user's manual for Navigation that explains all the Professional and Navigation features for 2004 (a new manual is expected to be released next month), nor I have the specs of the two units to compare so I cannot give you more details other than it sounds much better than the Bussiness unit that I used to have.

Good luck...
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Old 10-16-2004, 09:17 AM   #12
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Nice job

M3ryder: his kit includes all the electronics, software (CD and DVD) and installation hardware (harness, brackets, botls, screws, tie wraps, T taps, connectors and foam insulator). Compared to the OEM kit part number 65 90 0 391 113, which his kit is based and the intruction manual refers, the difference is that he is including the 16:9 display and CD player unit in his kit, whereas the OEM kit does not.


The OEM retrofit kits are available for different cars.

Sportwagon has "DVD unit" with all its brackets
Coupe has is own "DVD unit retrofit kit" with all its brackets etc.

The monitor has three retrofit kits:
Minidics
Tape
CD
No difference for sedan, coupe etc.
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Old 10-16-2004, 10:05 AM   #13
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Quote:
Originally Posted by BMW Freak
Nice job

M3ryder: his kit includes all the electronics, software (CD and DVD) and installation hardware (harness, brackets, botls, screws, tie wraps, T taps, connectors and foam insulator). Compared to the OEM kit part number 65 90 0 391 113, which his kit is based and the intruction manual refers, the difference is that he is including the 16:9 display and CD player unit in his kit, whereas the OEM kit does not.


The OEM retrofit kits are available for different cars.

Sportwagon has "DVD unit" with all its brackets
Coupe has is own "DVD unit retrofit kit" with all its brackets etc.

The monitor has three retrofit kits:
Minidics
Tape
CD
No difference for sedan, coupe etc.
BMW Freak, the DVD Unit you're referring to is the map reader that goes in the trunk area? Behind the monitor sits a CD player, is that what you're saying?
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Old 10-16-2004, 10:56 AM   #14
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Quote:
Originally Posted by Santiago
BMW Freak, the DVD Unit you're referring to is the map reader that goes in the trunk area? Behind the monitor sits a CD player, is that what you're saying?
Yeah, the nav brain which goes in the trunk. In that kit is the wiring harness included.

Behind monitor:
tape or cd or minidisc
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Old 10-16-2004, 12:18 PM   #15
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amazing DIY, congratulations!
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Old 10-17-2004, 12:06 AM   #16
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Technic, outstanding DIY. Really. You're work here has me thinking I really should add nav to my 04 325Ci.

Do you know off the top whether the nav retrofit will work with the aux in adapter and the bluetooth module? I have both of those installed already.

Thanks again,
Don
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Old 10-17-2004, 08:55 AM   #17
Technic
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Quote:
Originally Posted by DN325CI
Technic, outstanding DIY. Really. You're work here has me thinking I really should add nav to my 04 325Ci.

Do you know off the top whether the nav retrofit will work with the aux in adapter and the bluetooth module? I have both of those installed already.

Thanks again,
Don
Hi Don...

Both the Aux adapter and Bluetooth will work with this retrofit (page 9 and 10 of the installation document):





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Old 10-20-2004, 11:51 PM   #18
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Thanks to Technic we now have retrofit instructions for the Touring and the Convertible as well as the original instructions he provided for the Sedan/Coupe.

All PDFs are available at the following URL. I've put up an HTML page rather than linking to many separate little files. This URL will get you to all of them:
http://www.stradasystems.com/bmw
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Old 10-23-2004, 12:30 PM   #19
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Quote:
Originally Posted by Technic
Thanks guys!

M3ryder: his kit includes all the electronics, software (CD and DVD) and installation hardware (harness, brackets, botls, screws, tie wraps, T taps, connectors and foam insulator). Compared to the OEM kit part number 65 90 0 391 113, which his kit is based and the intruction manual refers, the difference is that he is including the 16:9 display and CD player unit in his kit, whereas the OEM kit does not.

You still have to buy from the BMW dealer the left trunk trim for CD Changer/Navigation (some $50.00) if you do not have it already in your car and the front storage console to reposition the climate control unit (some $40.00).
Do you know the part numbers for:

Trunk trim w/ door
16:9 display
CD player
Front trim for the climate control

Thanks!
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Old 10-24-2004, 02:05 PM   #20
Technic
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Quote:
Originally Posted by jorgen
Do you know the part numbers for:

Trunk trim w/ door
16:9 display
CD player
Front trim for the climate control

Thanks!
You can check common parts in this this BMW site...
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