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  1. #1
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    DIY: How to wire your JB4 USB through glove box

    While I'm sure that the 135i/535i don't have the same Cowl as the 335i's, I think the ECU setup is similar so this may still apply, however I have an E93 335i so this will work for the 335i engine bay.

    If you have installed a JB4, then this will be a breeze for you.

    Step 1) Unhook clips by wedging a flat head screw driver between the clips and pulling. These break easily so please don't apply too much force. Then remove 6 hex screws holding the air filter in place, remove 2 plastic covers
    Click here to enlarge
    Step 2) remove 2 hex screws holding cowl in place, don't forget to remove the sensors/clips on both sides
    Click here to enlarge
    Step 3) This should be what it looks like now, minus the Dual Cone Intakes if you don't have them
    Click here to enlarge

    Step 4) Locate the ECU (white cover) and undo the 4 clips and unlock the 2 locks.
    Click here to enlarge

    Step 5) After exposing the ECU, you should install the JB4 if you have not done so. I have already done so in the pic below. Link Here for those that need a guide to install the JB4

    Step 6)You should see 4 rubber grommets, please unhook these now. Just pull upwards and they will unlatch.
    Click here to enlarge

    Step 7) Unhook all connectors that can be unhooked including the JB4
    Click here to enlargeClick here to enlargeClick here to enlargeClick here to enlarge
    Click here to enlargeClick here to enlarge

    Step 8) I don't have a picture of this, but once all wires are removed, there is the plastic casing that holds the ECU that pops out, and I'm not talking about the shell. You can see it in the next picture in the middle.

    Click here to enlarge

    Step 9) Send the USB cable through this hole, you may have to force it through
    Click here to enlarge
    Click here to enlarge
    Click here to enlarge

    Step 10) Remove the two torx screws holding the plastic cover under the glove box in place.
    Click here to enlarge
    Click here to enlarge

    You should see the USB cord after removing the cover.
    Click here to enlarge

    Step 11) pull it through and replace the cover. Rescrew the 2 torx screws.
    Click here to enlarge
    Click here to enlarge

    Step 12) Replug everything and start the car before replacing all the covers.
    Click here to enlarge
    Click here to enlarge

    Now you can replace the ECU cover, put the Cowl back on, Air filter, screws and all Click here to enlarge


    EDIT: Fail, I just found a much better tutorial, oh well.
    http://www.n54tech.com/forums/showth...=usb+glove+box

  2. #2
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    Thanks! This will help a lot, should I decide to do it. I've had the USB cable sitting around for awhile now, waiting on a update worth the trouble.

  3. #3
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    Thats a very well done write-up. I think a lot of people feel its difficult, but as you've shown, its very easy

  4. #4
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    Yeah, I installed it last night without putting the cable through, that was a foolish thing because this morning I got up and took everything out LOL.

    Definitely helps reading codes and/or data logging Click here to enlarge

    p.s. <3 JB4 - On the fly map switching and gauge hacking ftw...not to mention valet mode (4500 RPM limit)

  5. #5
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    Blah I wish this worked on 5er... Click here to enlarge
    BimmerBoost's Resident n00b...Click here to enlarge

    Titanium Silver 2003 335 Ci || Premium Package || Sport Package || SOLD
    Sapphire Metallic Black 2008 535i || Custom Mandrel Bend Borla Exhaust || BMS Spacers || CMS Pro Meth Kit || JB4 || BMS DCI || SOLD
    Alpine White 2012 C63 Coupe || AMG Development Package || Multimedia Package || Lighting Package || LEASE ENDED
    Alpine White 2015 M3 || Driver Assistance Plus || Executive Package || Lighting Package || M Double-clutch and Adaptive M Suspension ||

    Click here to enlarge

  6. #6
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    How is the ECU on the 5er different? I have not worked on one yet :-/

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    it should be the same except for maybe the glovebox, but even that should only be slightly different, theactual disassemble and routing should be the same

  8. #8
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    To be honest, you dont even have to take the box out. I unplug the DME, lift it up and out, and use my fingers to route the usb plug unto the vent and push it down. Then I can get underneath the glovebox and push it to the side of the vent to grab it and pull it out.

    Takes about 5 minutes tops to do including pulling the cabin filter.

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    Thank you - this will come in very useful! I will also be installing the USB cable once my JB4 arrives.
    ~

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    Click here to enlarge Originally Posted by Matt@Camber-Toe Click here to enlarge
    To be honest, you dont even have to take the box out. I unplug the DME, lift it up and out, and use my fingers to route the usb plug unto the vent and push it down. Then I can get underneath the glovebox and push it to the side of the vent to grab it and pull it out.

    Takes about 5 minutes tops to do including pulling the cabin filter.
    +1
    Only the cable will probably ger stuck behind the carpet, so there is no use trying to push it all the way through the hole.
    If you are alone doing this removing the inner parts of the DME-box makes it probably easier to get the wire pulled through. If you have a willing pair of hands that can gently pull the wire while you're feeding it through the hole you can just leave the DME box intact. Maybe just lift the interiour 2 inches for more room. You have to remove the DME itsellf though, but that is only held in place with 2 clips and will easily slide out.
    Also, you routed the cable over the DME. You can also route it under the DME and let it pop up in the compartment where you put the JB4. Be carefull to route the cable next to the notch where the DME rests upon, or else the DME will rest upon the cable itself, which is not good at all.
    Do yourself a favour and have some slack in the cable, so if you have to do anything to the JB4 (like disconnect before going for service) you can easily reach the screws.
    The connection is serial, so really low freq. and you can always get a USB extansion cable (which you won't need for the cable is long enough).
    Also, in my 135i I routed the cable above the cover inside right into the glovebox, so it is invisivle unless you open the glovebox. Don''t know if this would work the same on a 335i though.
    On a 135i the cover also is attached to the center column with a clip of which you have to pull the centerpiece out of to release it.
    There are two theories to arguing with women. Neither one works

  11. #11
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    Great advice! I'm sure it will make my next times much easier if i don't have to remove the DME Click here to enlarge

  12. #12
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    Click here to enlarge Originally Posted by DarkPhantom Click here to enlarge
    While I'm sure that the 135i/535i don't have the same Cowl as the 335i's, I think the ECU setup is similar so this may still apply, however I have an E93 335i so this will work for the 335i engine bay.

    If you have installed a JB4, then this will be a breeze for you.

    Step 1) Unhook clips by wedging a flat head screw driver between the clips and pulling. These break easily so please don't apply too much force. Then remove 6 hex screws holding the air filter in place, remove 2 plastic covers
    http://www.benzboost.com/images/impo...011/04/1-2.jpg
    Step 2) remove 2 hex screws holding cowl in place, don't forget to remove the sensors/clips on both sides
    http://www.bimmerboost.com/images/im...011/04/2-2.jpg
    Step 3) This should be what it looks like now, minus the Dual Cone Intakes if you don't have them
    http://www.bimmerboost.com/images/im...011/04/3-1.jpg

    Step 4) Locate the ECU (white cover) and undo the 4 clips and unlock the 2 locks.
    http://www.bimmerboost.com/images/im...011/04/4-2.jpg

    Step 5) After exposing the ECU, you should install the JB4 if you have not done so. I have already done so in the pic below. Link Here for those that need a guide to install the JB4

    Step 6)You should see 4 rubber grommets, please unhook these now. Just pull upwards and they will unlatch.
    http://www.bimmerboost.com/images/im...011/04/5-1.jpg

    Step 7) Unhook all connectors that can be unhooked including the JB4
    http://www.bimmerboost.com/images/im...011/04/6-1.jpghttp://www.bimmerboost.com/images/im...011/04/7-1.jpghttp://www.bimmerboost.com/images/im...011/04/8-1.jpghttp://www.bimmerboost.com/images/im...011/04/9-1.jpg
    http://www.bimmerboost.com/images/im...11/04/10-1.jpghttp://www.bimmerboost.com/images/im...11/04/11-1.jpg

    Step 8) I don't have a picture of this, but once all wires are removed, there is the plastic casing that holds the ECU that pops out, and I'm not talking about the shell. You can see it in the next picture in the middle.

    http://www.bimmerboost.com/images/im...11/04/12-1.jpg

    Step 9) Send the USB cable through this hole, you may have to force it through
    http://www.bimmerboost.com/images/im...11/04/13-1.jpg
    http://www.bimmerboost.com/images/im...11/04/14-1.jpg
    http://www.bimmerboost.com/images/im.../04/14_1-1.jpg

    Step 10) Remove the two torx screws holding the plastic cover under the glove box in place.
    http://www.bimmerboost.com/images/im...11/04/15-1.jpg
    http://www.bimmerboost.com/images/im...11/04/16-1.jpg

    You should see the USB cord after removing the cover.
    http://www.bimmerboost.com/images/im...11/04/17-1.jpg

    Step 11) pull it through and replace the cover. Rescrew the 2 torx screws.
    http://www.bimmerboost.com/images/im...11/04/18-1.jpg
    http://www.bimmerboost.com/images/im...11/04/19-1.jpg

    Step 12) Replug everything and start the car before replacing all the covers.
    http://www.bimmerboost.com/images/im...11/04/20-1.jpg
    http://www.bimmerboost.com/images/im...11/04/21-1.jpg

    Now you can replace the ECU cover, put the Cowl back on, Air filter, screws and all Click here to enlarge


    EDIT: Fail, I just found a much better tutorial, oh well.
    http://www.n54tech.com/forums/showth...=usb+glove+box
    Not a fail, well done.

  13. #13
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    Click here to enlarge Originally Posted by hworang00 Click here to enlarge
    Blah I wish this worked on 5er... Click here to enlarge
    Why wouldn't it?

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    1 out of 1 members liked this post. Reputation: Yes | No
    this was great ... I just did this over the weekend but forgot to take pictures to write up a DIY

  15. #15
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    As far as I know, there really isn't a place to push the wire through, unless it's so low within the box itself that it can't be seen...I pulled out the ECU inserts to a pretty good extent, not all the way, but I couldn't see any holes to the firewall at all...I'll check again when I get my car back (in the shop for unrelated brake issues). Will let you know!

    Thanks.
    BimmerBoost's Resident n00b...Click here to enlarge

    Titanium Silver 2003 335 Ci || Premium Package || Sport Package || SOLD
    Sapphire Metallic Black 2008 535i || Custom Mandrel Bend Borla Exhaust || BMS Spacers || CMS Pro Meth Kit || JB4 || BMS DCI || SOLD
    Alpine White 2012 C63 Coupe || AMG Development Package || Multimedia Package || Lighting Package || LEASE ENDED
    Alpine White 2015 M3 || Driver Assistance Plus || Executive Package || Lighting Package || M Double-clutch and Adaptive M Suspension ||

    Click here to enlarge

  16. #16
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    Click here to enlarge Originally Posted by hworang00 Click here to enlarge
    As far as I know, there really isn't a place to push the wire through, unless it's so low within the box itself that it can't be seen...I pulled out the ECU inserts to a pretty good extent, not all the way, but I couldn't see any holes to the firewall at all...I'll check again when I get my car back (in the shop for unrelated brake issues). Will let you know!

    Thanks.
    Look again The procedure is fairly easy to do
    There are two theories to arguing with women. Neither one works

  17. #17
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    that was a great write-up DP Click here to enlarge

  18. #18
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    Thank you gentlemen. I'll do one more once the FMIC comes in Click here to enlarge

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    Click here to enlarge Originally Posted by Matt@Camber-Toe Click here to enlarge
    To be honest, you dont even have to take the box out. I unplug the DME, lift it up and out, and use my fingers to route the usb plug unto the vent and push it down. Then I can get underneath the glovebox and push it to the side of the vent to grab it and pull it out.

    Takes about 5 minutes tops to do including pulling the cabin filter.
    +1 Worked great just lifted the DME and managed to get the cables in, and I didnt need to do more than open the glove box remove the cover for the fuses and get the usb cable in there, no need to remove any screws inside the car Click here to enlarge

  20. #20
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    Click here to enlarge Originally Posted by xbox_fan Click here to enlarge
    +1 Worked great just lifted the DME and managed to get the cables in, and I didnt need to do more than open the glove box remove the cover for the fuses and get the usb cable in there, no need to remove any screws inside the car Click here to enlarge
    You guys are making me look bad. LOL, I'll see if I can re-write an easy tutorial then...

  21. #21
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    Awesome. This was just what I was looking for.

  22. #22
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    Great write up man, I'll be doing this when I install my JB4.
    2010 335i Coupe Le Mans Blue
    *JB4 Powered*

  23. #23
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    1 out of 1 members liked this post. Reputation: Yes | No
    I know this thread was dug up from a couple months ago, but the 5 is not too bad to do. I found it easier to pull the DME out of the bracket and unplug some connectors.


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