You sir, are a scholar and a gentleman. You have my sincere appreciation. This fixed for my 2004 645Ci the high battery drain fault, and the transmission fault ( giving me only gears 1 to 3 ) . Before i would have to make damn sure my battery was fully charged and do a transmission reset to clear the transmission fault, sometimes it would often take multiple resets. The code was active on the car, i unplugged the IBS and the car drives as it should , Full gears, no codes. These faults have left me stranded afew times also. So thank you for this video. Five stars my friend , five stars.

I had the exact same problem on my 2007 550i. went to mc Donalds came back out and no start. I un plugged the battery and re connected and boom she fired up! then went to sons school and no start again.did the battery un plugged and no go. had the car towed home next morning bought a new battery and no go......and same as you 24 hours later decided to un plug ibs plug.and car fires up!!! drove for 5 months like that and sold it. It's funny how people think alike lol great video.!!

(07 530xi) Thank you so much! I was having the high battery drain, increased battery drain, dead battery, etc... unplugged the ibs sensor and everything is good to go... even my check engine light went out and my car runs better. Thank you so very much for this video, god bless!

Thank you so much for the tip. after getting a technician working on the car for two hours and couldn't find the pro which was The IBS . fixed it in 5 sec...keep it up.

Brilliant video. I've gotten that High Battery Drain light and wondered about it. My battery is on its way out so I'm replacing it but I'm keeping that IBS trick stored in the vault in case I still have issues. Thanks for taking the time!

FINALLY!!!**** Thats what was wrong. FIXED. The usual water in the battery compartment probably fried the IBS. Thanks again for the right answer.

Wow great video, very detailed! Had this issue this morning, wish I had seen your video earlier. After much time and effort with a voltage meter discovered that the ibs was the problem. Disconnected it, and she fired right up. It's been raining for 2 weeks here, and of course water leaked in the trunk. Smh

Thanks bro was stuck at store 3 hours changing relays until I watch your video thanks worked perfectly

Wow. Absolutely amazing thank you for your post. I have a 06 BMW 325i and my car would not start. I disconnected the blue wire and boom, it started. Thanks again😁😁😁

Oh my God this guy is a genius thank you so much. I thought i had to buy a new battery or starter. Wow! You are amazing thank you so much buddy.

Beautiful! Thank you sir. My wife's car was stuck in her friend's driveway, and thanks to your research and video we were able to get it moved right as her dad was pulling up to park

Thank you Rob It is the rights time to see this video, my 2006 550i can't start even everything is on but no crank, no start, i spent 3hours to booster but same thing, i give up and come back next day and it start, until 4 days later it happens again. I hear so many ideas until i Watch this video, i do exactly what you did it works, i hope it solved problem, thanks. Very good experience, God bless you

I have 2007 BMW 525i too, and started getting clock resetting to 00:00 problem. I did google search, someone posted that this might be related to the battery issue. Since my battery was already about 5 years old, today I just purchased a new battery from Walmart, and replaced the battery. Immediately after replacing the battery, I set clock to the right time and turned off the car. Then, I was cleaning up garage. After about 2 hours, I restarted car, tried to park car inside the garage, I noticed that the clock was set to 00:00 again. My batter has a label 9/2018, so, it is quite fresh and should have enough juice. After watching your video, I guess this might be related to the IBS fault. Tomorrow, I will try to disconnect the IBS to see to if clock reseting issue can be fixed. Thanks a lot for your video to share the issue and workaround.

Thank you Robert for the video. Thank goodness that things posted on the web never disappear, your video has helped me a lot. Recently went through the whole process of replacing a battery, registering etc and a few weeks later still getting low voltage warning on screen. Even got water pump, thermostat (only 10k old) and blower fan error and several accessories not functioning power windows, folding mirror. Always suspected a power failure or bad reading somewhere, but never had the confidence to disconnect IBS. I did, cleared the codes then everything started working normally. BMW 335i N54 2008 - I love to hate it , and I hate that I love it.

Thanks very nice video I'm having issues with my (2008) bmw 750li no start battery discharged The battery is (1) year old AGM very expensive too I paid at the dealer $557 I don't know what is the problem is it a automatic car wash that did. when i open the door and insert the key in to the ignition the flywheel start turning by itself without starting kind of a grinding noise some they say it's power control module and some say VVT. / BST BMW electronics no good. too many sensors for nothing. Sound system that logic 7 no sound in the speakers recharge battery . I did install a new battery from my wife (Mercedes Benz S500) 2005 but that did not work again recharge battery. My (2004) BMW 750li Is running fine i don't want touch that one. I like the way you show the BST cable again nice video thanks

God bless you my brother

I want to yell you thank u for saving me some time and money. I had this very same issue. I unplugged the IBS and my car started right up. Thank u, Thank u, Thank u for making this video.

IBS basically is a negative battery terminal with a computer on the end of it. A malfunction can cause several problems, including the fuel pump engaging every 15 seconds, even when the car isn't running, thus draining the battery.

Thank you Robert!!!! Awesome video 🙏🏼

Thanks thanks my 2005 bmw has not run in 4 weeks did what you said it runs great now bless you

A very useful video. Just unplug the IBS power and do not have to be dragged away. IBS is very sensitive to rough handling and condensed moisture.

Thanks to this video I've started my car again 😊🤗 thank you very much!

Hi Robert, Just watched your video re: IBS ... Gotta say Big thanks for that, I've had the RAC look at my e60 with the same problem as yours...He couldn't fix it ? An auto electrician wanted £70 just to look at it ? Telling me it could cost a small fortune to fix.. Just as I was about to give up I came on here, watched your video and BOOM💥 It worked 😄 You saved me a pot of dosh and a shit storm between my ears man, Thankyou ! Andy, Liverpool UK. 🖒🖒

Wow, it actually works for my 2007 535xi. Thank you sir!

This video is a great education and explanation of BMW's (IBS) Intelligent Battery Sensor.

Thank you sir👍This helped me out a lot!

Bro your a straight up angel!! I’m going through this problem right now. Bmw said 486 with terminal and adapter. I jus replaced the positive battery terminal it was $420 now the negative terminal gave out this morning. Drove to drop off my uhaul because I was moving turned off the car went to start and didn’t want crank. Accessories and all came on no sound no crank to start tho

Thank you. You saved my day! Was able to start it up without paying loads of money. Thanks man

You saved my live thanks

I'm had the exact same warning control messages you did on my 2008 328xi. Literally the first time my clock reset when I started it after work one day almost as if the battery was disconnected and reconnected again then it gave the control message you had for battery discharge with a pic of a car on a lift. Im almost sure its my IBS sensor now I'll try this fix after work.

My brothers car started after this tutorial . Thank u , Thank u , Thank u

Your the best thank you very much it worked , perfectly!

Yoooooooooo tank you sooooo much. Appreciate your help. God blessed you brother

Thank you for good video, i have same problem and your video really help.

THANKS SOOOO MUCH for this video, u save my life, I have the same issue with my bmw 328. Like 5 days before the issue start I have to set time and hours like 3 time it was weird to my and thet the day 6 the car don't stat at all, I did the same thing u done and pum it started, thank man for the vid andGOD BLESS.

thanks. this fixed my problem.

Best video on the net. I love you saved me over 1k for getting a starter just to be upset

I'm replacing the battery AND the IBS on a 2017 F15 X5 (the bad IBS caused the battery to be flattened out several times). Those IBS are also affecting newer BMW.

Thank you a ton Robert!

saved me so much money . THANK YOU

Thanks very much dude! Iv been pulling my hair out over this. As soon as i disconnected it started.

i have a n54 and might have a bed plate leak ... do you know where i can find a alignment tool to put it back on

Another symptom of the IBS lead failure is various systems start to shut down. I've had it where the radio / idrive would not work on position 1 on the ignition. i.e the ignition is not on fully but just at the first (what we used to call) accessory setting. Put ignition on so the dash lights up (not starting the car, and the radio would b fine. The AC / heater blower would only work to it's 2nd speed and no faster. And it dips to its lowest speed if the car sees another power drain. if I hit the brakes, as soon as the brake lights illuminate, the blower dips to speed 1. And it was slightly slow to crank. Never failed to start, just slightly slower. Disconnected the IBS lead and hey presto. Radio and blower all back to normal and spins over perfectly when starting. Why oh why do they build pointless systems into cars that serve little purpose than to break down over time and give issues???? Great video by the way.

Thanks for the video. I have a problem I put a new battery in and the car was sitting for a month a the battery died.now I'm buying an oem and hope for the best

Robert...You are my hero !!!!!!!!!!!!!!!!!!!!! Thank you...and you did save me money!

Hey man, thanks for the video! I had the same problem (with my BMW 2007 525i),but after plugging off the IBS, it's running pretty cool! I was wondering, will it be a problem in the future if I won't replace it (just drive like this for couple months)?

I have a 2007 750i it was doing the same thing so I watched your video and went outside and just moved the wires and it cranked up

very helpful. just try to keep the camera from moving so much, it gives me a headache. Try a steady tripod, and use tools or fingers to point at the area you're referencing. other than that, really good content.

thank you very much for your video i bought a new battery and my 745li wont start and as soon i watched your video it started

This worked for me!! Thank you for posting this. I already knew my ibs was damaged after I hit a deer

THANK YOU SO MUCH FOR THIS VIDEO, Sir!! Been having this issue for months and I knew it wasn't my battery since I just bought a battery. 🤦‍♀️

Hey Robert this video was posted 3 years ago has your battery went bad Since? Just wondering? Great video btw

I have a bmw e90 3 series 325i and have replaced the alternator and the starter and battery went this morning to crank car and nothing put my obd scanner and got the code 2E8B for the battery sensor I’m going to unplug it and hope it works this E90 coupe has been a nightmare just tired of the dam thing hope it works great video thanks

exactly the same thing happened to me,but it seemed to have drained my battery overnight,i have disconnected the ibs cable and it now starts,thanks for your great video,hopefully its as simple as this.many thanks

Thank you so much for this tip. Worked a treat,

😮 that actually worked....had same problem with mine.....watch this video & it fired straight up 2006 530xi

It's an ATG IBS used to monitor electrical & computer circuits. Don't get scammed by dealerships. I have removed the ATG and hit $32,500.00 to get the Lamborghini Huracan. Plus the battery prices. ATG say you can clear everything by using BlueDriver and save you money for not getting OEM battery.

I wish I knew this a little earlier 👍👌

I have a 535d m sport with alternater regulater problems unplugged these 2 wires and presto no problems no warning s car flying but I will put a new alternater on it to be sure

Hey Robert I am sorry to disturb you but before my battery drained a engine temperature too high error occurred , does that count ?

Hello I know this is an old thread, but what is the ibs sensor, is it the blue connector that is disconnected??

Love that car 2007 bmw 525i

Thanks so much man ... ! You are a lifesaver ! I only disconnected the blue shit and the car started !

hope this fixes my problem

good info thanks

did u try reconnecting the ibs after battery change?

Thanks a million

This is an absolutely brilliant video. My car starts every time just be getting the warning battery dechanging and a picture of a car on a lift Icon. Well I have had my battery checked and everything is fine. I was thinking it may be the alternator as it had a slightly low charge. Until I discovered IBS and what it does from your video. I'm going to try to disconnect this and I hopefully all will be well. Just a bit worried about the iDrive. would any new icons warning information come up. I have a bmw 2009 e60 520.

good to know, thanks

great video robert, learned alot about ibs system. my concern is that you may still have discharge but have masked the problem by disconnecting the component that warns of the problem. you thoughts appreciated

hey where did you get that bmw information that you have on the screen

Hi my 2007 525i """ At times when I crank it " it shows a gold key somemetimes a circle when driving with a triangle symbol inside also while driving my car begin rumbling sound from seemingly the vents areas and under car " radio and air pause "start pause start back repeats it again with gold circle with triangle symbol shows again car slows a lll bit when I get to destination put in park push start button to cut off car goes dead without cutting the car off """ my God my doors would not unlock my key would not release from ignition all power shut off """ could not get out "" sit there about 5 or more min power came back on as I press the auto start button that's scary and dangerous especially if there is a fire """ help please

Very useful video !! I had problem with battery discharging overnight and in the morning the battery was completely flat. I disconnected the IBS and the battery keeps full capacity now. But may I have a question...if the IBS is disconnected is there any possibility that some other part would get broken ? Or can I keep it disconnected with no doubts ? Thanks you

Very helpful thanks for the good info...

Did you ever think about replacing the ibs cable? Have you had any problems having it disconnected and or do you know of any problems that can happen if you leave it like that? Great video by the way and thanks again!!

Did you just remove this sensor from the negative thermal? And the car works? Again? I got a bmw f30

Robert Edward: How long have you been driving the car with the IBS not connected?

Most annoying is that you have such and "intelligent" sensor, but no error messages appear to hint you what is wrong with the battery.

Wish I knew this on my first 2006 530xi.. brought it to the stealership and they charged me 5k for a new mechtronic unit. I went to the beach went in car after no start.. disconnected barrery and it started but drove around d for a sec to test it turned it off and it went out again. This time I decided to get it towed to BMW. Wish I just unplugged the fing ibs. Smh

I'm going to check out my car first thing in the morning I am going through the same thing I will let you know by morning I really need it to start my car is a 2006 530i fingers crossed

Thanks a lot was great Imagine how much it would have cost you at BMW dealership . another way they design car to make money after sale ,they could made it they way car would start but check engine on but this way no one would take it to dealership

I got an 08 328i, I have the issue where every thing turns on, except the engine doesn't start.I removed the ibs and still didn't start, even though everything else was fine as if the engine was on.Perhaps it's the starter since battery is also good???

Can this be my problem for my 2011? Having similar issues when i use push start i get a single click and then nothing else i was thinking this or my relay?

I have a 328i 2007 and took it in as it had a recall for air bag and oil change since then it has had starting problems took it local and they thought it was starter they had me confused so I had it towed to BMW... they said it was not the starter it was the cable to the battery something got wet/ corrosion and the whole thing had to be replaced at the tune of 5,398.00 had it for a week when i got it back the engine light came on again and the bulb light and radiator fluid light came on took it in and replaced light they told me the device light is going on because break fluid had to be replaced said I would wait on that. Drove back home stopped at gas station and would not start after filling up with gas. had to have it towed again??? Please help!

great video

Did you make the video on how to take off the positive wire?

I have a bmw 528i 2008 , changed the battery because it wasn’t good anymore and now my car doesn’t want to start, the lights turn on an off and I have codes popping up like transmission , abs etc . it turned on properly yesterday but didn’t want to go into drive or reverse , now it doesn’t want to turn on , not sure what’s wrong

Thanks

Hi guys 👋 I disconnected the IBS and then the battery after waiting 1hr the car started.was wondering if it will continue to work as a normal drain to the battery? Or will it kill the live of the battery?

It didn’t work for my 2007 550i 😩 could it be the ground? Or the starter maybe?? gonna try the relays next I guess 🤷🏽‍♀️ thanks for the video

My windshield wipers won't work when raining

How did you disconnect the ibs plug? I located the sensor but I can't separate the plug. What's the trick?

Hi let's see if this reaches out to someone I just replace the battery in my 2007 BMW 550i everything lights up it cranks but doesn't start. Before I replace the battery I was getting random none starts just clicks when it would crank it starts. Now again after replacing the battery it cranks but doesn't start!! Any ideas

5:24 video of IBS in trunk

Has the car died on you before you disconnected that cable?

I hit a dear and my car started showing codes for this and now my car will not start and wouldn’t come out of gear this little thing cause so many problems

I’m having this same problem i disconnected the blue cable and still have nothing I only have the key symbol on the dash can you help me ?

I have a code cc-id-97 and my car won't crank, also disconnect IBS and still no start. Help

Hi my bmw e60 2.3i 2005 will not start even when jump started it just clicks but no start. When I have it connected to jump start the light all come on but idive doesn’t come on. Do I disConnect the ibs 1st then try jump start it after? Thanks

My car Z4 E89, one day fine, next no start. Code says it's hall sensor key slot fault, but tried a 2nd hand replacement and both keys, still the same. Code reader gave out historical battery charge, day before fail, 99%, now 39%. Something drained battery. So now fully charged. Still no start. I will disconnect the ibs tomorrow just see what happens.