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5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

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Old 06-13-2007, 12:41 AM   #1 (permalink)
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Question Weird starting issue...

Occasionally, my 528i will turn over for a few seconds but not crank. If I depress the gas pedal about half way it will start up. Sometimes I need to hold the gas pedal just enough for the idle to set in and everything is fine. This happens about once or twice a month but I always get her running and no problems for several days.
Any ideas on what I need to look at to make sure I don't get stranded?

I did a thorough search and didn't see any post similar to this.
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Old 06-13-2007, 01:45 AM   #2 (permalink)
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Maybe something wrong with your "warm-up" (automatic choke) unit. I used to have a 518i with similar issues, especially when cold. Although mechanics wanted to replace it at a cost of half the cars value I never did and just lived with the problem. Does he back-fire during startup as well?
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Old 06-14-2007, 11:51 PM   #3 (permalink)
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Originally Posted by CL30131
Maybe something wrong with your "warm-up" (automatic choke) unit. I used to have a 518i with similar issues, especially when cold. Although mechanics wanted to replace it at a cost of half the cars value I never did and just lived with the problem. Does he back-fire during startup as well?
Nope, no backfires. Not even a puff of smoke. It is really perplexing but your issue sounds similar. I have an good indy shop I may take it to and see if they can diagnose - if it becomes a regular occurrence. It happens so seldom that I am not really woried about it just yet. I thought I would floa this out there and see if anyone else had something similar.

It may be just a weak battery...it sounds like the starter is sort of weak whenever this happens. I'll kep everyone posted.

Thanks!
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Old 06-15-2007, 04:49 AM   #4 (permalink)
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Hmm, well the battery will take a dip when starting takes longer than usual. Just check the acid levels if you wanna be sure. If it's not a regular thing I won't even worry. Regular service/maintanance of the obvious components to keep them in proper working order always reduces the search for a problem. Difficult start-up in my case was many times related to the distributor. I seemed to push the car to hard , as I went through a distributor and rotor every two years...
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Old 06-16-2007, 01:40 AM   #5 (permalink)
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could be a idle control valve or possibly even the beginning of failure of the cam position sensor.

Either of those will eventually set off a check engine light, though.
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Old 02-21-2010, 09:22 AM   #6 (permalink)
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any info the 525i se 2000 started the morning then 20 min later stop and try restarting no joy turns and fires but dies striaght away
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Old 02-21-2010, 11:28 AM   #7 (permalink)
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any info the 525i se 2000 started the morning then 20 min later stop and try restarting no joy turns and fires but dies striaght away
I suggest you start a new thread so you do not cloud the issues of the fellow that started this thread :-)
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Old 02-21-2010, 11:34 AM   #8 (permalink)
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Quote:
Originally Posted by ozarkmark View Post
Occasionally, my 528i will turn over for a few seconds but not crank. If I depress the gas pedal about half way it will start up. Sometimes I need to hold the gas pedal just enough for the idle to set in and everything is fine. This happens about once or twice a month but I always get her running and no problems for several days.
Any ideas on what I need to look at to make sure I don't get stranded?

I did a thorough search and didn't see any post similar to this.
your symptoms point to an air &/or fuel problem.

1) when was last tune-up? i.e. change of fuel and air filters - that would be a good place to start.
2) Dirty Idle Air Control motor & the MAF sensor, will also do that. A good carb cleaner spray on these two components might be in order.

** if those 2 don't work, then we'll delve into the more complicated issues :-)

Good Luck
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