car does not start spuradically [Archive] - Bimmerfest - BMW Forums

: car does not start spuradically

06-30-2012, 02:41 PM
I just bought the car used from a BMW dealership locally and my aftermarket warranty has not kicked in yet. I insert the key, steering wheel moves into position, radio comes on and then I put my foot on the break and press the start button, nothing happens. This has happened to me twice before and I walk away for about 5 minutes and come back to the car and it starts right up.

I am not mechanically inclined so I donít know what things are called, so with that in mind, what do you guys/gals think my issue could be?

Car is a 2004 745Li with 112,000 miles. When it does start it runs perfectly.

Thanks in advance for your help.

06-30-2012, 02:52 PM
OK, I dont know if this is associated with the car now cranking, but I was getting "parking break malfunction" and the key ejected twice on me. Third time was a charm, the car cranked and I was able to drive it around.

06-30-2012, 05:26 PM
Look up Integrated power supply it should be the problem

06-30-2012, 05:39 PM
Are these what you are talking about

I plan on buying new, but wanted to get an idea of what it looks like.

Thanks for your help...

06-30-2012, 06:00 PM
Ok so i had same problems and I have the same car 2004 E66, it turn out that i had the wrong battery from same type of stealer so i went to Sears and got the correct one

06-30-2012, 06:04 PM
Here is the one u need
Got this info from Paper.

06-30-2012, 06:12 PM
I had the same problem with my 2004 745i and it was the Integrated power supply. I just went to the dealer for 120.00.

06-30-2012, 07:43 PM
Thank you all for your replies. I am going to get I am sure I have the original battery in this a new would wouldnt hurt...


Let you all know how it goes...

06-30-2012, 11:02 PM
I have a NIB Integrated supply module if you like $90.00 shipped.

07-02-2012, 04:48 PM
rookie, had I of checked my messages earlier I would have taken that offer as it would have saved me $30. I purchased one early this morning at my dealership and swapped it out already. Wasnt to hard to do...surprisingly enough.

I will update you all if this has resolved my issue.