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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 01-14-2012, 05:15 PM   #1 (permalink)
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Question hard starting

Hi ,i have 97 528 53k on it , this is the second post im putting ,i have done some tests and replaced some parts but no luck. I have to crank the car afew times after sitting for a while but it will always start, no check engine light on, once it starts runs fine and it will start right up again if shut it off .A list parts of replaced and tests perfomed

New fuel filter
New crank and cam sensor oem,crank sensor has the updated wiring
New battery (did not start )car had stayed about 4 hours off, whe i replaced batterry the same problem crank twice fired right up
Checked for fuel pressure drop after shut the car off it held pressure 48psi for 45min
When i turn the key to on position 40 psi in rail
Scaned with factory scan tool crank sensor code stored in history i was told, but regular scan tools couldnt pick it up in history or pendnig(snap on modis with european software )thats why replced CPS

If any one has any ideas or any test that should looked into performing, any help would be apriciated
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Old 01-15-2012, 07:52 AM   #2 (permalink)
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Obviously a cold-start issue!?
Air-lock in fuel-line? Dunno as yet bud...
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Old 01-15-2012, 03:00 PM   #3 (permalink)
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im taking it to indy shop again ,see what they come up with this time. Damn this cars 2for 2 both cluster f@#*$
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Old 01-15-2012, 03:01 PM   #4 (permalink)
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thanks for the replys,any feedback is apreciated
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Old 01-26-2012, 08:50 PM   #5 (permalink)
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car got fixed two modules later,dme defective
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Old 01-27-2012, 12:42 PM   #6 (permalink)
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Hard to detect without a laptop eh? Anyway it's sorted so Happy Days again matey...
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Old 01-30-2012, 05:25 PM   #7 (permalink)
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thanks man ,hopefuly no breaking my wallet for a while
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Old 02-05-2012, 03:52 PM   #8 (permalink)
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what's a dme?
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Old 02-08-2012, 06:23 PM   #9 (permalink)
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Engine control module
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Old 02-09-2012, 02:20 AM   #10 (permalink)
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Old 05-28-2012, 07:28 PM   #11 (permalink)
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I've to count to 14 before starting and then it kicks off first time. i've been talking to everyone but the pope and no ideas. Might as well try the dme!! Where is it located, and what does it look like??
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Old 05-28-2012, 08:49 PM   #12 (permalink)
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the dme is just a name for the ecm or ecu what ever you prefer,it looks like most units just type dme on goolge and youll get an idea, on my car its located under the right side cabin filter,i dont know what kind you got so cant say where its located,if you give me a year and model i can find out or google it
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Old 01-29-2014, 03:46 PM   #13 (permalink)
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I have more less same issue but my car when is cold starts right away, when engine gets to normal operation temperature runs fine for a while but when I stop the engine and try to start it again nothing I have to wait about 10 minutes to do engine runs again....
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Old 02-04-2014, 12:17 PM   #14 (permalink)
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I have more less same issue but my car when is cold starts right away, when engine gets to normal operation temperature runs fine for a while but when I stop the engine and try to start it again nothing I have to wait about 10 minutes to do engine runs again....
Do you have any codes,check engine light on,any test that you ran,the tech that , found mine hooked up a lab scope to the injectors , and noticed they werent firing,thats why he suspected a crank sensor,wich wasnt the case,the control module for whatever reason wasnt waking up , until I crank it a few times,the capacitors might have been junk,had simmilar problem witha cluster,on the e34,the reason behind it its just speculation, on my part,either way the module got replace d, never had a problem again,so check before you replace anything,dme on my car , being that old did have to reprogramed, if it did I dont htink a used module would have worked,let me know if you any help, good luck
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