1 Series and BMW IBS

[DeepSpaced]

Did all 1 series cars come with IBS? I'm having a difficult time finding an answer to this question.

RealOEM shows two variants of negative battery cables for my VIN, both having some variant of IBS, but my '11 E82 does not currently have an IBS negative battery cable. It does have a brown, BMW labeled, negative battery cable, but it does not have the IBS microprocessor on it. I also am not seeing any IS codes being stored.

I need to replace the cable or at least the terminal because it will not tighten enough to not slip on the battery terminal.

[wantmymoneyincash]

Originally Posted by DeepSpaced

Did all 1 series cars come with IBS? I'm having a difficult time finding an answer to this question.

RealOEM shows two variants of negative battery cables for my VIN, both having some variant of IBS, but my '11 E82 does not currently have an IBS negative battery cable. It does have a brown, BMW labeled, negative battery cable, but it does not have the IBS microprocessor on it. I also am not seeing any IS codes being stored.

I need to replace the cable or at least the terminal because it will not tighten enough to not slip on the battery terminal.

you ever get this figured out? I gotta '13 135is and have the same brown negative wire you do. The car has no problem starting but the battery voltages are low. OEM battery. Car is throwing:
0038A4 (advanced communication intelligent battery sensor: malfunction)
0038B4 (BSD, communication; intelligent battery sensor; missing) .
003887 (vehicle power supply voltage operating range, voltage too low) .

Bought the car like this so not sure if it was replaced. RealOEM.com tells me there two conflicting part numbers for IBS. One is the straight brown lead, and the other says the lead w/ IBS and the adapter. The one in the picture shows the one with the IBS so I ordered the OE Hella one and adapter off FCP so I will test it out with a new battery sometime this week.

[desertman123]

Pretty sure all BMWs of this era and onward have IBS

Check the voltage the alternator is charging the battery at. The voltage regulators are not unknown to fail wantmymoneyincash

[DeepSpaced]

I got an answer indirectly. I have two E82s, both have the brown cable. I do not know what the determining factor between IBS and no IBS is, but my 2 128i's didn't get the IBS. Neither appear to have had their battery ever programmed to the car either.

[wantmymoneyincash]

Originally Posted by DeepSpaced

I got an answer indirectly. I have two E82s, both have the brown cable. I do not know what the determining factor between IBS and no IBS is, but my 2 128i's didn't get the IBS. Neither appear to have had their battery ever programmed to the car either.

Interesting... hoping someone else can chime in here. It gives two options for me. But the diagram shows the IBS attached at the negative terminal and I do not have that, just the brown cable. The car is also throwing those codes saying it is missing so, not sure if it is the IBS missing, or that the battery is in poor condition causing the IBS not to function properly.

https://ibb.co/GxPX8mC

[lemansblau135is]

I have a 135is also, I can look at the battery when I get home if that helps.

[wantmymoneyincash]

Originally Posted by lemansblau135is

I have a 135is also, I can look at the battery when I get home if that helps.

cool thanks man, curious to see what other folks have. I cannot seem to track down any definitive answers about this IBS thing

[lemansblau135is]

Yep. IBS on then ground wire. Wire is black, not brown (or dim lighting) and the IBS is right on the wire next to the terminal. Hope that helps.

[wantmymoneyincash]

Originally Posted by lemansblau135is

Yep. IBS on then ground wire. Wire is black, not brown (or dim lighting) and the IBS is right on the wire next to the terminal. Hope that helps.

Helps a lot. I ordered the black cable with the IBS and the adapter too, assuming you have that too? 12517615476

[lemansblau135is]

I'm not sure of the part number, I would have looked up Realoem too. I can text you a picture though, as I really don't know how to post them here yet.

[wantmymoneyincash]

Originally Posted by lemansblau135is

I'm not sure of the part number, I would have looked up Realoem too. I can text you a picture though, as I really don't know how to post them here yet.

It doesn't show the adapter on the RealOEM in the diagram, but it shows that its needed if using the IBS cable. I purchased it anyway.

I just use imgbb.com to upload and then insert link button.

Maybe the battery was replaced at some point and perhaps the IBS sensor went bad and got replaced with the brown wire... idk.. Will try replacing this, and then look into a new battery. Just seems odd.

[lemansblau135is]

[wantmymoneyincash]

Originally Posted by lemansblau135is

Attachment 2302988

Yea, clearly the IBS is there. Looks like the adapter is too. This is what mine looks like. Your battery looks different than mine as well.

https://ibb.co/wzZfLHp

[lemansblau135is]

Yeah, I just replaced the original one. But the terminals were the same.

[wantmymoneyincash]

I replaced the battery this weekend with an H8 90ah AGM. It works fantastic but still having trouble with the IBS.

I found out there are two different IBS adapters that plug in the IBS sensor. The one listed that FCP euro says is incorrect 12517615476 (its a short adapter that I cant see that plugs into anywhere.

The other one( 61129123571 ) has a plug to go into the IBS and two long leads, one plugging into the red positive box, and the other plugs into a plug on the wire that runs from the positive battery box. I know this doesn't say it fits the 1 series but I believe it does.

The issue is that on the little cable that runs from the battery box, there is no plug for the lead on the adapter to plug into. Its just a wire and I dont see anywhere else it should plug into.

I am kind of lost and there doesn't seem to be much confirmed info on this sensor. Codes are still pulling missing IBS.

I found a post from TUN3D's 1M conversion build about him converting the battery and such. https://www.1addicts.com/forums/show....php?t=1058189

In there you'll see he uses BOTH of these two adapters I mentioned above to hook up the IBS. Now, on the adapter with the long leads, you'll see one goes into the blue section on the red battery box and the other is a blue socket that goes into this connector on that yellow and black wire. That is what my battery is missing. There is nothing on that wire for the end to go into; look at the link I posted above.

Where is the IBS if you have the brown negative cable? Should I try and order the brown cable to replace? Anyone got ideas?

[wantmymoneyincash]

It looks, according to this picutre, that I am missing what the BSD plugs into. https://bimmerscan.com////wp-content...5300596847.jpg

[wantmymoneyincash]

Originally Posted by lemansblau135is

Yeah, I just replaced the original one. But the terminals were the same.

Found out that in RealOEM.com, if your car has:

For vehicles with
CO2 package, Auto start/stop function, Brake Energy Regeneration, Navigation system Business, Navigation system Professional, Preparation f mobile phone cpl. USA/CDN
S1CBA=Yes
S1CCA=Yes
S1CDA=Yes
S606A=Yes
S609A=Yes
S639A=Yes

then it has the IBS sensor. If it doesn't have one of those, then it does not. So if that is true, then my car should not have the IBS (no nav etc) and I am ASSUMING that you have idrive/nav etc since you have the IBS.

However, if it's true that I should not have the IBS, then why am I still getting codes that it is missing. Debating on purchasing the brown cable to replace it because I am not sure what else to do lol

[NorthernDancer]

Originally Posted by wantmymoneyincash

Found out that in RealOEM.com, if your car has:

For vehicles with
CO2 package, Auto start/stop function, Brake Energy Regeneration, Navigation system Business, Navigation system Professional, Preparation f mobile phone cpl. USA/CDN
S1CBA=Yes
S1CCA=Yes
S1CDA=Yes
S606A=Yes
S609A=Yes
S639A=Yes

then it has the IBS sensor. If it doesn't have one of those, then it does not. So if that is true, then my car should not have the IBS (no nav etc) and I am ASSUMING that you have idrive/nav etc since you have the IBS.

However, if it's true that I should not have the IBS, then why am I still getting codes that it is missing. Debating on purchasing the brown cable to replace it because I am not sure what else to do lol

You have a very nice car, 2013 135iS. It deserves attention of someone who knows these cars VERY well. Suggest joining BMWCCA which also translates to Connecticut chapter. [http://www.ctvalley.org/]. The knowledge gained from these 2 groups, especially finding a well recommended BMW indy garage, will save you tons of money down the road.
Do it once, do it right.

[wantmymoneyincash]

Originally Posted by NorthernDancer

You have a very nice car, 2013 135iS. It deserves attention of someone who knows these cars VERY well. Suggest joining BMWCCA which also translates to Connecticut chapter. [http://www.ctvalley.org/]. The knowledge gained from these 2 groups, especially finding a well recommended BMW indy garage, will save you tons of money down the road.
Do it once, do it right.

Thanks, ill take a look. Do you know any info about this IBS sensor issue?

[NorthernDancer]

No, and believe it or not, my car is still in "winter" storage. And I have 2 wheels in the trunk so battery not easily accessible.
As a BMWCCA member you have access to their technical expert [Mike Miller] who knows almost everything BMW and answers e-mail questions usually within 24hrs, often within 3-4 hours.

[wantmymoneyincash]

This weekend ill be trying to fit the IBS with the adapter and this part number 61129123571. That part states everywhere that it does not fit the one series. But if you look at the tag on the cable itself it states: E87, E88, E90, E70.

I believe that the BSD connector to the DME does not have to be plugged in according to https://www.youtube.com/watch?time_c...ature=emb_logo

It just seems strange to me that there is no BSD connector for it. This thing is throwing me for a ride. Also awaiting a reply from a local indy shop for advice.

[wantmymoneyincash]

Update: Over the weekend I put on the new IBS black battery cable, attached with the adapter and 61129123571. I had no where to plug the BSD connector into so that was left unplugged which to my knowledge sends the info to the DME.

Connected everything, fired up protools, and cleared the codes. Then read all errors, and it pulled 0038A4: Advanced communication intelligent battery sensor: malfunction. So it did get rid of the 0038B4 which was saying it was missing. I think it is still malfunctioning due to the BSD not plugged in. But again, there is no BSD female plug to be found anywhere.

Car fired up just fine and everything ran smoothly. I left the new cable in for now just to see if anything happens. Planning on taking it to an Indy shop when I can.