BMW E60 IBS Failure

[@sergionava1666]

Take it easy my friend...Good video

[@GritsnBeans]

Symptoms start when you notice "sluggish starting". Like it started ok but it seems to take 1 or 2 seconds more than it used to. Not all the time but enough you notice. That will progress to intermittent starting. Like it cranks n dies but will turn over and stay running on the second try. That will then turn into crank no start. (Will crank & crank may start but quickly dies followed by constant crank but no start) Jumping the car will get you going. Next parasitic drain. (Drive around sll day with no issue. Next morning the battery is dead.

[@de77thecomputer]

NEVER NEVER SAY YOU'RE dumb or stupid, matter of fact you're quite intelligent to figure it out and matter of factly BMW is quite the morons for putting such BS in a car for getting groceries and picking up kids etc. .... it's not a rocket to go to the moon ! Thanks too much for your efforts in figuring such a mess and what caused it in the first place, then sharing your findings with us.... much appreciated, God bless you I have 105,000 miles on my 2008 535... l was only able to drive the car 3 months after buying it 15oct2020, it sat at my job for several months before towing it to the BMW dealer "for nothing" The warranty or time for recall on the hpfp had already expired. Now it sits at the shop and the mechanic can't even figure out the problem or at least that's what he tells me anyway. The mechanic tells me there's a chip on a circuit board contained within the fuse box behind the front glove box that's blown so replace the whole front fuse box !.!.! Sound like a load a bullshit to you ? Yah, me too... So far by not knowing the problem I've replaced the hpfp and all 6 injectors.... injectors were the last codes it threw... and there was a recall in the hpfp.... oh n l should add the BMW dealership here in Dallas advised on the service record that it needs a new control module ecu ! and a new battery.... When l'd do 75 on the freeway an engine damage warning would tell me to slow down... I'd back off to 60 and things would go ok then. When I see your video and hear you beat yourself up please don't feel bad, feel proud, you're very smart to figure it out and I feel pretty good that I'll NEVER buy another BMW. Compare: you invested hours, I've invested 16 months and it still does not run ! at this point should I replace the ibs and new battery to see if it starts ? your advice is very helpful indeed, thanks dellthecomputer.9may2022

[@ElectronicMechanicFinland]

Thanks for kind words. Positive feedback is allways nice to get and it gives more motivation to keep pushing forward =) But did i get it right that you can drive 60mph but in 75mph you start geting those faultcodes? What are the codes ? And i dont belive that IBS sensor helps you. It just tells ecu how much is electicity used and spanks alternator to word harder if needed

[@de77thecomputer]

@@ElectronicMechanicFinland I'd get the Huge PLEASE REDUCE SPEED WARNING ACROSS THE INSTRUMENT CLUSTER when it ran... I'd calm down and just crawl at 60 then things would be ok. One day, one morning leaving work it started, put it in drive, drove 50 feet then died, hasn't run since. That was 16 months ago not being able to figure out the problem till l saw your video... same gasket problem for the trunk however I'm not 100% certain that there was ever any water in the trunk... Atfer what I've learned from you it's certainly worth a shot to replace the ibs and/or that module that sits in the bottom of the trunk. Why would it just stall like that then never run again in 16 months ?.? Ok if ibs never sends signal to the ecu to "wake up" then it's like a dead camshaft position sensor, the car doesn't know "how" to start without ecu, the ecu is dead in the water just floating out there with no signal to "wake up" ! Makes sense to me even though it's major league stupid from BMW for such a design to cause such havoc in my life... l promise to never buy a piece of trash again, it's all my fault, I'm so stupid for such an investment.... Thanks for your time and response, I really appreciate it dellthecomputer.09may2022

[@crazychild2002]

@@de77thecomputer may I ask if disconnecting the ibs and putting new battery fixed it

[@zaddari4304]

Thanks for the video. Anyway i quess that BMW does not asemble that sensor for nothing. Does it harm car when you switch that off?

[@ElectronicMechanicFinland]

You are mabye right. But atleast you can pinpoint trouble and not just change Parts by quessing. I called one friend who repair thease cars and he adviced that that older wehicle dosent really need that sensor. It was kinda measuring battery health and alerting driver if battery has any performance trouble.

[@zaddari4304]

@@ElectronicMechanicFinland I have an E61 2008. 🤔 Is it old enough to switch that pain in the ass off. It is very expensive piece of .......

[@330Details]

@@zaddari4304 yeah same need to know asap

[@330Details]

@@ElectronicMechanicFinland car won't start but i believe it's my IBS

[@zaddari4304]

@@330Details Is battery ok?

[@Lenny8548]

I’ve had 2 bmws so far that killed the battery one after a day and one after 15 mins turns out it was the Ibs sensor for both, what I found out was that jumping the car directly from the battery over amps the Ibs sensor and fries it so, replaced Ibs sensors on both vehicles and so far no comebacks on discharged batteries.

[@BEAMERNOOB]

I don’t understand how that would make any difference. The positive terminal under the hood is directly connected to the positive terminal on the battery, the negative post under the hood is attached directly to the chassis and the negative battery terminal is attached directly to the chassis. Might as well be basically a longer jump cable attached to the battery, no difference. It’s the low voltage that kills the modules not high “over current from jumping the posts directly at the battery”. Low voltage means the amps go way up.

[@schunacher]

Can you explain a little bit about the resistance value? You are measuring to ground and the resistance is 400 Ohms and you say that that is enough to meet spec (19 Ohms) but after you fix the problem the resistance goes to 1.7K Ohms which fixes your problem (disconnected is 200K Ohms). Did you mean to say that 400 Ohms doesn't meet spec (not enough to stop the wake up from going to ground) and maybe you meant to say that spec is 19K Ohms?

[@ElectronicMechanicFinland]

Hi. It was fun adventure to hinta this broblen but yes. That wire is Power train canbus modules wakeup. Similar what you can found on car audio amplifiers. There is plenty off controll modules on canbus and they are on sleep mode to prevent battery drainage and they Will Be waked up by aplying 12v to this wire. And If resitance to ground is low then module what is generating that voltage Will go to fault state becouse it dont have enough power delivery capacity to raise voltage up to 12. And If wakeup line is not hot then modules keep sleeping and car is unable to start. But what is right value to te measurment . Now afterwards i would say anything over 1k Ohm should Be enough but 400 Ohm and less are indicating trouble.... If i remember right you can deattach wakeupwire on trunk and measure resitance to ground. (Just ibs).

[@tedyciprian123]

I have one question ignition is turn on if ibs dont work? In you problem before to find that ibs you have ignition?

[@ElectronicMechanicFinland]

Hi. If IBS has failed like IT was My case you dont have "ignition" theese cars really dont have ignition anymore. There is can bus wakeup line and when it is hot it Will wake up control modules and after that they start communicating wia canbus.

[@tedyciprian123]

@@ElectronicMechanicFinland tnx. but in my case haz cas control unit so I change all kit for start..ecu and cas module and work fine..The cas control unit do all can working and wakeup line..so finali work for me.

[@movie3447]

I have bmw 525i 2004 getting no power on the dash no crank no start only my head light work and power in the park light near the lever stick. Any help

[@ronanjuries7091]

Dud the car crank? Before removing connector. Swing but no start?

[@ElectronicMechanicFinland]

It was no crank no start situation.. only wisit workshop logo in dashboard

[@bmw-e30]

Very good video. I succeeded in getting a friend's e60 started by disconnecting the Ibs. I initially thought it was an engine ground issue as the battery measured 11.9 volts but the measurement on the positive terminal on the engine and frame was only 5 volts. Would the Ibs cause this voltage imbalance?

[@ElectronicMechanicFinland]

I m sorry but where you measured 5v i did not fully understand what you mean

[@bmw-e30]

@@ElectronicMechanicFinland There is a positive terminal on top of the engine (used for jump starting). I only measured 5 volts between this terminal and the body of the car. The battery in the boot though showed almost 12 volts.

[@ElectronicMechanicFinland]

@@bmw-e30 in that case you might have faulty positive cable from battery tray to enginebay. I have heard that point where battery positive wire exits from battery tray and enters under The car is somehow rotted broken under The car . Or another fault point might be that positive terminal on battery. There is somekind explosive disconnector what can cut positive wire If wehicle is crashed.. i assume that jump start tab on engine Bay is hooked directrly to main positive on starter motor or alternator so it really should measure pretty much exaxatly same voltage as battery

[@bmw-e30]

@@ElectronicMechanicFinland , Thanks for reply. Battery in the boot is not a good idea.

[@Themoss5000]

Did you find any fault codes on INPA/ISTA leading to the IBS?

[@ElectronicMechanicFinland]

No i did not. I only got that pt canbus wakeup failure and basicly all control modules in pt canbus was not responding

[@christopherseerungen8306]

You have an e60 54”. Never had any issue before with the battery until about a month ago. After not using the car and heavy rain, the car wouldn’t start. Also water has seeped through the back driver passenger side( quite a lot of water). I’ve sorted the window seal out and no more water came. However, I’ve suspected the car not starting to be a battery issue but it’s not. I had 3 new batteries in, which will charge when driving but after 1 day alarm will go off and battery has died. Car will also go sleep after 15 mins. We’ve checked the car for paralistic draw but none detected. After researching I’ve came across the IBS which could have been damaged as initially there was a tiny bit of water in the trunk next to the battery. Before I change the IBS could someone advise please. Thank you

[@ElectronicMechanicFinland]

I am sorry about delay in My reply. I somehow missed your question. If you have chance to obd diagnostic that i suggest first. But If. Not then My advice is disconnect The battery capacity sensor wakeup wire as i did. If i remember right that IBS sensor is battery negative terminal and that device in positive terminal is explosive Power Cable disconnecting device what Will disconnect positive terminal If car crashes. I dont know witch can bus is that explosive disconnector connected but IBS sensor is pt canbus so it can communicate directly to engine and transmission. And If IBS sensor is faulty it might cause connication error to whole pt canbus or pull down The pt canbus wakeup line what causes issue that Any device on that can network are on sleep mode and dont wake at all.

[@ElectronicMechanicFinland]

I Forget to say but wery bottom under spare wheel is canbus control modules and If Waters Get to trunk it usually flood theese modules and it make your car to Bumblebee. Or it feels like IT because If modules get soaked to water they Will mess up can bus commucation and car starts to do allkind things for itself . And that Will drain battery

[@kentuckyrain2223]

My 2005 545i e60 wouldent start and i bought a thinkdiag tool off ebay and reset key number one then it started but it said keys were ok yet i still reset it then it started

[@ElectronicMechanicFinland]

E60 are mystery vehicle xd

[@MrSponar]

On my father E60 first was batery drain, so he bought new battery. After that same drain happend so he took to mechanic who replace alternator. Afther that two days and again same drain of battery. What we find out that idle buzzing sound from motor is not stoping and that is what drain battery. After i disconnect IBS that buzzing still not stoping. On some forum says that IBS control that idle time... i dont know how to check if IBS is not working. And that is what drain battery.

[@jurkanman]

Imam identičan problem. Jeste li uspjeli pronaći uzrok?

[@MrSponar]

@@jurkanman Na kraju je bilo krivo to, da mehaničar nije spojio senzor punjenja koji se nalazi na bateriji u gepeku.

[@jurkanman]

@@MrSponar hvala na odgovoru

[@أبوأفنان-ض6ص]

لدي مشكلة تفريغ البطارية هل تصلح هذه الطريقة

[@ElectronicMechanicFinland]

It might help. But propper way to diagnose draining battery is figure out where power is going.. i have hooked the multimeter to current mode and putted it 10amp range. And between battery negative and ground lead. You can not turn anything on in car because meter will melt or blow fuse but typical slow drain current is somethin near 1 amp.... When meter is hooked you can see that drainage current and start taking fuses of one by one and check when current lowers in meter . That way you can narrow whole car to just one spesific sysyem and fault finding gets easier

[@joninyholm5119]

Tämä oli hyvä ja toimava keino, harmi kun en aiemmin löytänyt videotasi.

[@ElectronicMechanicFinland]

No piru. Kiva jos joku tästä jotain hyödyllistä löysi =)

[@arelanttu5433]

Kiitti neuvosta, mulla neljä vuotta seiso pihalla tommonen ja pari päivää pähkäillyt et miks ei inahakkaan ja tällä tuli kuntoon!

[@ElectronicMechanicFinland]

no prkl hyvä niin =)=) en siis tee ihan turhaa paskaa täällä XD

[@hekee4175]

mul on tuo intelligent battery sensor fault ja sit sytty airbag valo ja en voi nyt nollata

[@hekee4175]

Fc93 ja sanoo vänkäri penki matosta jotain ja undervoltage

[@ElectronicMechanicFinland]

Mutta käynnistyy silti? Vähän luulen että kyseessä on kaksi eri vikaa tai sitten akun jännite alhainen ja matalan jännitteen vuoksi alkaa tuleen vikakoodeja muilta ohjain laitteilta

[@hekee4175]

@@ElectronicMechanicFinland joo auto käynnistyy normaalisti vaan herjaa nyt esim myös hehkuja, tyre puncturee yms jostain foorumeilta luin että pisti uuden ibs piuhan niin on loppunut viat vaan aika kallis piuha. Kerran tuli myös electronic failure kesken ajon mutta sammu se sitten melkein heti eikä oo sen jälkeen tullut takasin akku on ladattu ja antaa tarpeeks. Ideat loppuu kesken leimakin 2viikon päästä:D vaan en tiiä että johtuuko se nyt siitä ibs etten saa nollattua tuota vänkärin penkkiä kun siellä on huijaus palikka ja toimi hyvin noin kuukauden ja sekin oli jännä kun pisti ajovalot niin se räpäytti pariks sekunniks aina sen bägin valo tauluun ja sitten sammu vaan pitää siihen uus penkki hommata vaan mistään löyä samanlaista ja ei nyt kehtais erinlaista penkkiä tai koko sarjaa ostaa kun muuten ehyet..

[@hekee4175]

vikakoodinlukijalla tulee tuo ibs vika sinne mikä ei aikasemmin ollut kun sain nollattua sen airbag valon niin voisko se sitten liittyä siihen

[@glendekoker3682]

You can code it out.

[@ElectronicMechanicFinland]

Yes. Inteligent battery management is option. What can Be disabled. And inrasing slightly Fuel consumption. But offcource faulty sensor needs to Be disconnected. Otherways it Will draw that Pt-Canbus wakeup line to ground and it causes no start situation

[@smamas114]

Can you measure the resistance of the ibs can bus line ?? I want to check mine because i have some problem with alternator or obs sensor because sometimes it shows me in dashboard low battery charging and car is stopping,ans sometimes i have “high battery discharging “ i don’t know what to do ….

[@ElectronicMechanicFinland]

Negative.. i do not have car what to measure. But fault was really obivious.. under dash is that Access module ca2 who is responsible to check ign key if it is allowed to start car and that module creates that pt canbus wakeup voltage 12v in the pt canbus wakeupline. Wakeup line is independend and not connected to actual can bus line... It is just like a car amp wakeup that amp understand to do something. I dont remember now what was the right pin to measure but i measured from ca2 module wiring hardnes to wehicle ground resistanse and that wakeup line was reading low ohms. And after disconnecting IBS wake up wire in trunk resistance popped right up...but in your case it sounds that battery is drained empty and charged wrong or teplaced and newer programmed to car. If IBS sensor is in use. There is nessessary to tell the car if battery is changed

[@smamas114]

@@ElectronicMechanicFinland The battery is new and i already programmed

[@ElectronicMechanicFinland]

@@smamas114 how much is odo meter? Just thinking if altenator rotor brushes are weared. I dont know about bmw but some cars will store conditions when fault code is stored. I. Condition data might show low battery voltage what indicates bad charging? If that is my sunday cruiser. I would drive around and keep fault code readet pluged in or some tiny elm obdbreader to monitor battery voltages during drive.... Your codes are telling baf charging or deep discharging? Is that confirmed? Is battery drained low when fault occurs?

[@smamas114]

@@ElectronicMechanicFinland The cars has 200k km ,no the battery yesterday when it happened was 10,4v and a got a lot error codes on my delphi tester : dpf ,abs ,transmision ,dpf pressure sensor, power management and more but the one that is permanent is the glow plug relay (i will need to change it) ,someone told me what you told me ,the alternator brushes ,i will check it

[@elbakaa]

@@smamas114have you fixed it ? i have same problem on my bmw e90 2008

[@bidaragroup]

1 fuc**** wire ... Headahce the whole day bro

[@ElectronicMechanicFinland]

Not a day... Week is closer truth

[@bidaragroup]

@@ElectronicMechanicFinland hahaha ...

[@kamphundschannel6394]

Did it start when disconected?

[@ElectronicMechanicFinland]

Yes it did.. when connected it.caused powertrain can bus wakeup line to shorting ground and none off control modules on that can line did not start at all and ca2 module gived fault code. But after disconnecting all startted immediately =) in have heard that car battery charging logig will go to failsafe becouse it cannot anymore measure energy charged or discharged from battery and acts like normal old type constant voltage charger. But it is not confirmed so i am not sure is it true or not but for diagnose prupose car will launch without it =)

[@josephmanzini2945]

2c9e dme