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hello, i'm new here and i need help, i'm from brazil and here we don't have good mechanics, my e60 550i 2008 has trouble connecting for 3 years and i never find the problem, before i rarely had this problem, but now every day it happens that. First start of the day the car always works, the second start sometimes, third start never starts, I think the car heats up and can no longer work, I hear a click only but the car does not try to start ... the panel works, the windows work but the car won't start, sometimes if I wait 10, 20 minutes, when I try to start, it works, sometimes it will only start if I jump. On the panel there is an error in the active steering, sometimes others, but always active steering, I have already changed 2x starter motor, I have changed alternator, I have tested ibs, I have changed several modules, new registered battery, nothing works ... I don't know what else to do . Can someone help me ? I already thought about abandoning that car, I just had problems and spent a lot, the car always in the workshop.
 

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View attachment 1027990 hello, i'm new here and i need help, i'm from brazil and here we don't have good mechanics, my e60 550i 2008 has trouble connecting for 3 years and i never find the problem, before i rarely had this problem, but now every day it happens that. First start of the day the car always works, the second start sometimes, third start never starts, I think the car heats up and can no longer work, I hear a click only but the car does not try to start ... the panel works, the windows work but the car won't start, sometimes if I wait 10, 20 minutes, when I try to start, it works, sometimes it will only start if I jump. On the panel there is an error in the active steering, sometimes others, but always active steering, I have already changed 2x starter motor, I have changed alternator, I have tested ibs, I have changed several modules, new registered battery, nothing works ... I don't know what else to do . Can someone help me ? I already thought about abandoning that car, I just had problems and spent a lot, the car always in the workshop.
When car warms up or after it been ran for a few minutes and fails to start it's likely your starter. Is the starter OEM (Bosch) or a rebuild or aftermarket starter? I've had this issue and it was starters built with cheap parts that didn't stand up to heat. You need a genuine BMW (Bosch) starter to troubleshoot.
 

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E30 325e, E34 535i, E46 330Ci, E60 530i, F10 528i, F10 535d
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Did you try reading the error codes when the car does not start?

Also, you said it also start on the first try. Does it matter if it is hot or cold day? Or you only have issue when the engine is hot?
 

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Discussion Starter #4
it is of good quality, but it is not original, I read in another conversation that the k2003a relay often causes this problem! I bought a new one, this week I'm going to test
When car warms up or after it been ran for a few minutes and fails to start it's likely your starter. Is the starter OEM (Bosch) or a rebuild or aftermarket starter? I've had this issue and it was starters built with cheap parts that didn't stand up to heat. You need a genuine BMW (Bosch) starter to troubleshoot.
it is of good quality, but it is not original, I read in another conversation that the k2003a relay often causes this problem! I bought a new one, this week I'm going to test
 

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Discussion Starter #5
Did you try reading the error codes when the car does not start?

Also, you said it also start on the first try. Does it matter if it is hot or cold day? Or you only have issue when the engine is hot?
yes, i've read several problems but i never find the error, it makes no difference, any day it works very well, but in the 2nd or 3rd match it doesn't work ... the weather doesn't make a difference. if I wait 20 minutes, the car usually runs.
 

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E30 325e, E34 535i, E46 330Ci, E60 530i, F10 528i, F10 535d
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so it seems like it is sensitive to the engine temperature, not the ambient temp. I doubt it is the relay as I understand the relay is far from the engine. It is probably your starter since it is attached to the engine. I don't know the location of the starter in this engine. If you can access it, you can get yourself a can of freeze spray. When the car does not start, spray the starter and see if it fixes the problem.

Another idea is connect wires to the starter terminal to somewhere you can easily access. When the car does not start, connect a test light or a DMM and find out if the starter is getting a signal.

This should narrow down what might be your issue.
 

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so it seems like it is sensitive to the engine temperature, not the ambient temp. I doubt it is the relay as I understand the relay is far from the engine. It is probably your starter since it is attached to the engine. I don't know the location of the starter in this engine. If you can access it, you can get yourself a can of freeze spray. When the car does not start, spray the starter and see if it fixes the problem.

Another idea is connect wires to the starter terminal to somewhere you can easily access. When the car does not start, connect a test light or a DMM and find out if the starter is getting a signal.

This should narrow down what might be your issue.
I'm lost, I've tried everything ... I'm going to take this test
 

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I'm lost, I've tried everything ... I'm going to take this test
It is not the relay, it is your starter. The reason the car starts after 20 or 30 minutes it’s because it has cooled down.
 

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E30 325e, E34 535i, E46 330Ci, E60 530i, F10 528i, F10 535d
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Randomly trying to replace parts is very expensive and frustrating and in many cases does not fix the problem. On top of that, you are replacing high quality original parts with "good quality" parts not only does not fix the problem but introduce potential new problems. For example, sometimes the issues is not with the parts, it could be wiring or grounding issue.

Whoever decided to change the alternator is clearly incompetent. You should have ran away from him The alternator is responsible for charging your battery. If this is your problem, how could the car recover after sitting for 20 minutes? Did it somehow charge the battery by itself in the 20 minutes? Of course not.
 

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Another thing to check is the Integrated Supply Module (IVM). It is a small box near the firewall that contains relays that control most of the car's function. I had similar problems with stalling/no start, and after many failed diagnosis attempts at several shops, my own research lead me to this as a possible source of the problem. I had it replaced and the problem has not resurfaced.
 

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Discussion Starter #12
[QUOTE = "GalDemSuga, postagem: 13530605, membro: 859167"]
Não é o relé, é o seu iniciador. A razão pela qual o carro dá partida após 20 ou 30 minutos é porque ele esfriou.
[/ CITAR]

I've already changed the initiator 2x ... maybe it's the solenoid wiring for the initiator, because every time I try to connect and it doesn't work I hear a click, it's very frustrating not to find this problem
 

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Discussion Starter #13
[QUOTE = "smokeyyy, post: 13530670, membro: 33634"]
Tentar substituir peças aleatoriamente é muito caro e frustrante e, em muitos casos, não resolve o problema. Além disso, você está substituindo peças originais de alta qualidade por peças de "boa qualidade" não apenas não corrige o problema, mas também introduz novos problemas potenciais. Por exemplo, às vezes o problema não é com as peças, pode ser um problema de fiação ou aterramento.

Quem decidiu trocar o alternador é claramente incompetente. Você deveria ter fugido dele. O alternador é responsável por carregar sua bateria. Se este for o seu problema, como o carro poderia se recuperar após ficar parado por 20 minutos? De alguma forma, ele carregou a bateria sozinho em 20 minutos? Claro que não.
[/CITAR]

o meu carro infelizmente está maluco, há pouco tempo a bateria também perdeu a carga, coloquei uma bateria nova e um novo regulador de tensão, para não perder mais carga. mas este problema nunca resolve
 

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Discussion Starter #14
[QUOTE = "ABCarr, postagem: 13530726, membro: 474590"]
Outra coisa a verificar é o Módulo de Abastecimento Integrado (IVM). É uma pequena caixa perto do firewall que contém relés que controlam a maior parte das funções do carro. Tive problemas semelhantes com travamento / sem partida e, depois de muitas tentativas de diagnóstico malsucedidas em várias lojas, minha própria pesquisa me levou a essa possível origem do problema. Mandei substituí-lo e o problema não reapareceu.
[/CITAR]

já substitui isso por um novo também, sem sucesso
 

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Discussion Starter #15
[QUOTE = "habbyguy, post: 13530737, membro: 871721"]
Qual é a voltagem da bateria quando o carro não pega?
[/CITAR]

Não sei como te dizer, no Brasil sabemos pouco de mecânica, sempre levamos o carro para a oficina, dependemos muito de maus profissionais ... isso é péssimo. quando o carro tem esse problema, se eu pular funciona
 

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[QUOTE = "GalDemSuga, postagem: 13530605, membro: 859167"]
Não é o relé, é o seu iniciador. A razão pela qual o carro dá partida após 20 ou 30 minutos é porque ele esfriou.
[/ CITAR]

I've already changed the initiator 2x ... maybe it's the solenoid wiring for the initiator, because every time I try to connect and it doesn't work I hear a click, it's very frustrating not to find this problem
Again, it is your starter. It doesn't matter how many reconditioned/remanufactured starters you have installed. They are built with poor quality parts. Get a used genuine BMW starter, open it up and clean, lube and if need be install new brushes from a quality source.

see: 2005 BMW 545i Intermittent No Crank No Start Issues...
 

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Discussion Starter #17
it is very strange how this car works ... today I started the car 6x, only 2x I had to try again because it didn’t call, but as soon as I tried it again it did. Before, I only called after 20 minutes. The car is better, I don’t know why, I haven’t done anything yet
 

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Starters often act like this before failing forever. Also, a loose cable (any of the cables going to the starter, or the ground strap from the chassis to the engine block) can also act like your car is acting.
 
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