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7 Series - E65 / E66 (2002 - 2008)
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  #1  
Old 01-15-2012, 05:32 PM
Swif Swif is offline
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Car shuts off

Anyone have their 04 745LI shut off when driving. I have had this happen 4 times. Most the time when taken off for a light.

No check engine light. Car will not restart right away. Takes a few minuets before it cranks and starts.

It is almost like I shut the car off with the start/stop button.
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  #2  
Old 01-16-2012, 06:12 AM
Swif Swif is offline
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No one here has had this happen?
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  #3  
Old 01-16-2012, 09:08 AM
bghubr bghubr is online now
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Search for alternator or battery problems. This is a symptom of one of the two going bad.
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  #4  
Old 01-16-2012, 10:12 AM
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DFEL750I DFEL750I is online now
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If the car is not cranking at all then I would looking into the integrated power supply module. Seach for it on here and you will find some answers.
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  #5  
Old 01-16-2012, 10:17 AM
Swif Swif is offline
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Thanks for the leads.

Don't think the alt or battery has a problem as kl15 and kl30 are fine.

will look at the integrated power supply module.
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  #6  
Old 01-16-2012, 01:50 PM
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M4XBMW7 M4XBMW7 is offline
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How long will it take to start once dead ? Sounds almost like a crank sensor issue .
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  #7  
Old 01-16-2012, 02:04 PM
Swif Swif is offline
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Not to long. At time is is with in seconds. A few times it take a few minutes. This has happened with in 5 minutes of starting the car and taking off from a start. Reviewing threads about the integrated power supply module It sounds like that could be the issue. I will go to my buddy's shop Friday and hooke up the GT1 to read faults if any and check operation of the crank and cam sensors.

Does anyone know what faults store due to a bad integrated power supply module?
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  #8  
Old 04-09-2012, 08:57 AM
Swif Swif is offline
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So I have found that if I carry both keys with me and I have a no start/no crack concern I charge the key I am using car starts up. This no start takes place more often when the weather is hot. Does the integrated power supply module supply power to the ingition curcuit? I have tried to find wiring diagram on the ISM but have had not luck.

I have also found that if I disconnect the power connector at the right side next to the jumper post I can get the car to start 50% or the time. Other times I have to have it disconnected for about 3 minutes and then start the car.

When I checked for faults with buddy's GT1 we found many historyical battery faults.
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  #9  
Old 04-09-2012, 09:16 AM
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Quote:
Originally Posted by Swif View Post
So I have found that if I carry both keys with me and I have a no start/no crack concern I charge the key I am using car starts up. This no start takes place more often when the weather is hot. Does the integrated power supply module supply power to the ingition curcuit? I have tried to find wiring diagram on the ISM but have had not luck.

I have also found that if I disconnect the power connector at the right side next to the jumper post I can get the car to start 50% or the time. Other times I have to have it disconnected for about 3 minutes and then start the car.

When I checked for faults with buddy's GT1 we found many historyical battery faults.
Definitely sounds like an integrator power supply module issue. Yes that module supplies power (controls) to all critical modules in the car.
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  #10  
Old 04-09-2012, 11:57 PM
Datrojan Datrojan is offline
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I'm willing to bet it's a bad crank/cam sensor. Mine cost $1800.00 to fix out the door.
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  #11  
Old 04-10-2012, 12:15 AM
ikob ikob is offline
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Quote:
Originally Posted by DFEL750I View Post
Definitely sounds like an integrator power supply module issue. Yes that module supplies power (controls) to all critical modules in the car.
+111
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  #12  
Old 04-10-2012, 09:23 AM
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I'm willing to bet it's a bad crank/cam sensor. Mine cost $1800.00 to fix out the door.
How much????!!!???
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  #13  
Old 04-14-2012, 01:09 PM
Swif Swif is offline
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Quote:
Originally Posted by Datrojan View Post
I'm willing to bet it's a bad crank/cam sensor. Mine cost $1800.00 to fix out the door.
If it was a bad crank sensor then it would not start up with the other key like it did.


So I removed the IPS and found that fuse 3 was almost popped out.

What circuit does fuse 3 power on the IPS module? Who can get me a wiring diagram to review?

Thanks
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  #14  
Old 04-14-2012, 01:30 PM
Khabar Khabar is offline
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servotronic #3 in glove box pass side

Last edited by Khabar; 04-14-2012 at 01:36 PM.
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  #15  
Old 04-15-2012, 12:50 AM
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Quote:
Originally Posted by Swif View Post

So I removed the IPS and found that fuse 3 was almost popped out.

What circuit does fuse 3 power on the IPS module? Who can get me a wiring diagram to review?

Thanks
I'm also having power related problems, can you explain 'how to' & 'where is the IPS' so that I can try troubleshooting too? Thanks

Symptom: My starts are long and slow, power decrease and surge and rare occasions it shuts off. My battery & alternator test ok.



jdcraw
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  #16  
Old 04-16-2012, 08:59 AM
Swif Swif is offline
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Quote:
Originally Posted by jdcraw View Post
I'm also having power related problems, can you explain 'how to' & 'where is the IPS' so that I can try troubleshooting too? Thanks

Symptom: My starts are long and slow, power decrease and surge and rare occasions it shuts off. My battery & alternator test ok.



jdcraw
You will need to remove the right side micor filter. Remove the clip for the micro filter housing (10mm bolt head). You will need a 5 or 4mm allen. Once you have the cover removed you will see the IPS module in fornt. to remove you will have yo pull the ECM out behind the IPS. then remove the IPS.
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  #17  
Old 04-16-2012, 09:19 AM
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Could be a bad fuel filter too and/or both.
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  #18  
Old 04-16-2012, 10:50 AM
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Any updates on this matter
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  #19  
Old 04-16-2012, 01:38 PM
Khabar Khabar is offline
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What is the difference between Control unit power module (61 35 9 132 581) and Integrated supply module ( 12 52 7 510 638)?
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  #20  
Old 04-16-2012, 01:46 PM
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pkathee pkathee is offline
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Quote:
Originally Posted by Khabar View Post
What is the difference between Control unit power module (61 35 9 132 581) and Integrated supply module ( 12 52 7 510 638)?

They have different part numbers.......
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  #21  
Old 04-16-2012, 01:55 PM
Swif Swif is offline
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Quote:
Originally Posted by N62B44 SGM View Post
Could be a bad fuel filter too and/or both.
Fuel filters do not stop the starter from turning. many time a bad fuel filter will cause serging before a complete shut off.

That said this will be replaced when I service the car in a few months. (Plugs, air filter, diff fluid, P/S fluid, micor filters, brake fluid flush and fuel filter. Will service trans and replace sleeve.)

Car has been driving good so far. (knock on wood)
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  #22  
Old 04-16-2012, 02:13 PM
Khabar Khabar is offline
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what was your problem?
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  #23  
Old 04-16-2012, 02:19 PM
Swif Swif is offline
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Quote:
Originally Posted by Khabar View Post
what was your problem?
--------------------------------------------------------------------------------

Anyone have their 04 745LI shut off when driving. I have had this happen 4 times. Most the time when taken off for a light.

No check engine light. Car will not restart right away. Takes a few minuets before it cranks and starts.

It is almost like I shut the car off with the start/stop button.

Also have some trans shifting concerns at times. Everything seems ok right know. Will keep the forum upto date.
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  #24  
Old 04-17-2012, 10:13 PM
Bryan Aceron Bryan Aceron is offline
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I'm Having the exact same problem with my 745i 2004 i changed the alternator and the battery now the ips message comes on and all my lights on my dash blinks on and off but the car still kepps running and to add to that when it is in or im and a stop and it is idleing it is fine it happens only when i give it gas .. if i resolve it i will post it and if you have any infomation that could help me it would be highly appreciated
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  #25  
Old 04-17-2012, 10:22 PM
SFbay SFbay is offline
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Sounds like power module glitch.
Check with inpa your power module, it's gonna tell you a lot
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