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BMW 3-Series (E90 E92) Forum
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Bluetooth Retrofit: E90 335i with iDrive, Phone prep, Voice control, and USB
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03-12-2012, 12:00 AM | #1 |
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SUCCESS! Coding is complete and I can report that the method below works. I've seen many different experiences with retrofitting Bluetooth on cars with various options, none of which have been the same as mine. My vehicle seems to have an odd set of options, and, as a result, retrofitting Bluetooth is very simple and inexpensive. First, I'll list pertinent options so you know exactly what my starting point is: My US 2008 BMW 335i 4 door has the following options:
Options my car does NOT have:
Please note that S640A option is a universal option, which I take to mean that the car is prepped for Bluetooth hands-free, fully integrated car phone, or mobile phone with eject box. What does all this mean?
Parts list:
Tools:
Steps: 1. Install the Bluetooth antenna in the stock location on the pedal trim
2. In the trunk, prepare the Bluetooth antenna cabling to connect to the ULF
3. In the trunk, move the microphone pins from the TCU's 18x3 connector to the ULF's 18x3 connector
3. Reinstall the ULF.
3. Switch the mic wiring behind the glovebox to follow the path to the M-ULF2. As per BMW upgrade kit no. 84 64 0 393 552, you must move some pins in a harness behind the glovebox to connect the built in microphone to the M-ULF2 in the trunk. This involves removing the cup holders, glovebox, and moving some pins. Refer to the diagram below if you like (not necessary if you follow the steps below): Remove the cup holders
Remove the glove box
Rewire the mic connector
Put it all back together
4. Coding. Add $644 to the vehicle order. Couldn't be simpler. Just add $644 to the VO. Follow the guides available on the forums for detailed instructions, or go to a shop. Shops that have successfully done the coding:
Cost Breakdown:
Total: $108.36 Sources:
Last edited by lazd; 02-12-2016 at 12:26 PM.. Reason: Fixed a couple pictures |
03-19-2012, 01:08 AM | #2 |
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The retrofit was successful. I now have Bluetooth with excellent audio quality, parts in the stock location, and all of this with stock equipment and without splicing, soldering, or running any wires.
Thanks to Grant at detalADDICT and everyone whose post I cited above. I hope my post above helps someone else accomplish this retrofit! Edit: Mod, please move this thread to the DIY section if it meets the criteria. Last edited by lazd; 03-19-2012 at 01:09 AM.. Reason: Request mod move thread to DIY section |
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03-22-2012, 03:28 AM | #3 |
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I would like to add on instructions for self-coding for those who are attempting to do the coding themselves.
All coding is done using NCS Expert's expert profile (expertmodus) 1. Add $644 to the VO and do FA_WRITE to both CAS and NFRM. 2. After finishing step 1, change ECU to 2RAD (radio professional) and change job to SG_CODIEREN then execute job. 3. After the radio has restarted, pressing the menu button should show an addtional "TEL" option. 4. Press the "TEL" option and make sure BT is turned on. 5. Scan for bluetooth devices and you should see a device named "BMW XXXXX" where "XXXXX" is the last 5 numbers of your VIN. 6. Pair your phone with the radio and it'll be done. IF the above steps does not work, let the car go into sleep mode (takes about 16 minutes) and try to pair the phone again. IF after sleep mode it still doesn't work, search for revtor's NCSexpert profile and use this profile for coding. |
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03-24-2012, 12:57 PM | #4 |
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Excellent write-up. Most of the pertains to people like me with no voice control but who have phone prep. I've added the microphone to FZD, the antenna and rewired the MULF, etc but still have no working mic, so I suspect that I have to rewire the mic at the glovebox junction also (though other people in my situation haven't needed to).
I will report back once I have done so (and will clarify any steps that are muddy in the re-wiring section). I vote for sticky! |
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03-24-2012, 02:11 PM | #5 | |
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Quote:
Next, we pulled pin 19 and 1 out of the white TCU connector in the trunk and shorted them, testing the yellow and black pairs on the male side of the connector behind the glovebox with the ohm meter. Once we found the matching pair, it became obvious -- the black, yellow, and clear wires in the glovebox area are bundled into the same "sheath" as the black, yellow, and clear wires you pull from the TCU connector. If you look at the way those wires line up when the glovebox connector is in place, the bundled wires aren't connected to anything. So arrange the pins in the male connector so the bundled wires line up with their corresponding colors on the female connector and, after adding $644, you should have mic audio. Also, I found that voice control could not hear me once we added $644, and it wasn't until we moved the pins in the connector behind the glovebox that it started hearing me again. Therefore, I think the mic takes a different path for voice control when $644 is present (which requires the glovebox rewiring). Have you tried coding to enable voice control? |
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03-24-2012, 05:44 PM | #6 | |
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For iDrive, press Menu, press enter to go to Settings, select Bluetooth, and make sure "Bluetooth active" is checked. |
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03-24-2012, 07:07 PM | #7 |
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Drives: '08 E90 335i, '99 E36 M3
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Good info.
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03-29-2012, 10:16 AM | #8 |
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04-07-2012, 05:08 PM | #9 |
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So I've been following this thread closely and I'm very interested in adding Bluetooth to my 2009 335. I have navigation with no extra packages. I was under the assumption from reading that all US BMW's were wired for phone prep. After finding my mulf2 hi module in the trunk I noticed I do not have any extra wiring in the trunk that match the wire instructions provided in this thread. I do have the wiring needed for sate lie radio retrofit. I take it this means I will need to purchase the Bluetooth antenna with the Bluetooth antenna wire, to run back to the mulf, and I will also have to buy a microphone and wire it all the way back to the mulf. are the clear wires for the microphone a special type of wire? Does this even seem possible or am I missing something?
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04-07-2012, 11:23 PM | #11 | |
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you can leave the bluetooth antenna in the trunk. I bought a 15cm SMB cable off ebay and connected the antenna to the MULF2 and just taped the antenna to the MULF2 mounting bracket. for the mic, any normal wire pair will do though I think BMW uses a shielded 2 core cable for the mic to prevent noise. I simply used a normal wire pair without shield for the mic. the wire is run from the MULF to the mic location. I had run the cable from the trunk, up the C-pillar, the headliner from back to front and then to the mic location. I also removed the A-pillar trim to run the wire below the airbag. oh, you may need to buy MQS connectors or the BMW wiring pigtails. Cos the mic wiring connection to the MULF plug requires these MQS pin connectors in order to fit properly. I had tried other pin connectors and they dun fit properly and I was lucky to be able to buy these MQS pin connectors locally for about $2 for a pack of 10. for the connectors on the mic, i simply used an old 3 pin connector I had salvaged years ago from an old computer casing. Last edited by snoozee; 04-07-2012 at 11:28 PM.. |
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04-09-2012, 03:02 PM | #13 |
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Just realized that i probably have a the microphone already hooked up because i have voice control in the car. so all i am really missing is the bluetooth antenna, rewiring the microphone and coding.
After rewiring the microphone will voice control still work, or will it not work until the car has been coded for bluetooth? |
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04-09-2012, 08:17 PM | #14 |
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Your voice control should be using the MULF2 so it doubles as the Bluetooth phone mic. There's no need to rewire the mic. You just need the antenna an coding done to enable the option.
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04-10-2012, 12:07 AM | #15 |
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Lazd,
You stated that you have 6FL, did you hook any cables to the USB hub?
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04-10-2012, 03:17 AM | #16 |
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04-10-2012, 02:23 PM | #17 |
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Quick question:
I believe my car has this same exact setup. Question 1: Since I have voice control, do I need to repin the mic cables? Or will the voice control mic work once I add the bluetooth antenna and code? Question 2: what is the $644 ??? Question 3: Where is the best place to order the bluetooth antenna? Thanks so much |
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04-10-2012, 07:09 PM | #18 |
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1. No need repin. From what I understand, should work.
2. 644 is handsfree phone option for EU cars. Since u r in US, you should use 664. 3. I think the sticky thread above has links to where to order the antenna. |
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04-11-2012, 01:41 PM | #19 |
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So after seeing this post I did some exploring in my car to make sure I have the correct components to perform this DIY. I have taken some pictures and will post them below.
Images: • I have two images showing the mic configuration in my dome light setup. The mic on the drivers side is hooked up already because I have voice control. Black and yellow cables are going into this mic. The PDF I saw about installing with pre-wired configurations mentioned that this needs to be connected, but mine already is. There is a blank space for another mic on the passenger side of the setup. • There is an image of the wiring configuration in my trunk. 3 wires bundled on top of the MULF2 unit. Cable 1 I cannot identify, Cable 2 appears to be the MOST of fiber optic cable, and Cable 3 is the antenna. • Another image shows the setup in my pedal trim. I did not see a bluetooth antenna wire in the vicinity but I didn't pull the whole assembly out. (I know I can just put the antenna in the trunk if need be) There is no loudspeaker attached and there is a fiber optic cable connected to a blank in the trim. Does anyone know what this is for? Doesn't seem to be connected to anything. This step by step in this thread is by far the most helpful I have found but I just want to make sure that my setup has everything required for this project. Can anyone look at these images and confirm that I have what is needed? If I do end up putting the antenna in the trunk next to the MULF2 do i need to get a short antenna cable to attach it? The bundled antenna cable appears to go somewhere else, but i didn't see it in the OEM location on the pedal trim, perhaps I should take another look. Thanks so much, I really appreciate all the help. |
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04-11-2012, 07:19 PM | #20 |
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The cable in your pedal trim is the MOST diagnostic port.
If I'm not wrong, the cables you have in your trunk is for Sirius satellite radio. Do a search for other Bluetooth threads and you should find pics of similiar cables in the trunk. |
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04-11-2012, 10:31 PM | #21 | ||||
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Quote:
Quote:
However, there is a white 3x18 connector you need to remove 3 pins from. See the original post for more info. Quote:
Quote:
Good luck, report back about that antenna cable above the trim! |
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04-11-2012, 10:50 PM | #22 | |
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I have voice control and I had to repin behind the glove box.
It went like this: Voice control was working before I started. I added $644 to the VO, let the car sleep, then voice control stopped working. I made a call with Bluetooth, and the person on the other end could not hear me. I then swtiched the pins behind the glovebox and immediately both voice control and Bluetooth audio started working. Quote:
I would be very curious to know if $664 works as well! Last edited by lazd; 04-11-2012 at 11:03 PM.. |
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