can some one help me - Page 2 - BMW Forum - BimmerWerkz.com
1,6,7,8 - Series and Mini Cooper General Chat related to models that do not fit into particular categories above. Please try to put your discussion in more appropriate sections. This section does cover the 1 Series, MINI Cooper and 8-Series vehicles: BMW 830i, BMW 840Ci, BMW 850i, BMW 850Ci, BMW 850CSi, M8, Alpina B12, BMW CS Concept and others.

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post #16 of 21 (permalink) Old 02-25-2008, 04:07 PM Thread Starter
 
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could it be bleeding back through from the alternator
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post #17 of 21 (permalink) Old 02-27-2008, 02:23 AM
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you can remove the D+ wire from the back of the alternator and check open circuit voltage with the key in pos 2 at the D+ wire ... if you still have your voltage then you know it isnt bleeding through the alternator.

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post #18 of 21 (permalink) Old 02-28-2008, 05:06 AM Thread Starter
 
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ok
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post #19 of 21 (permalink) Old 02-28-2008, 06:32 PM Thread Starter
 
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oh yeah i forgot to tell u when i took the alternator off for the core i asked them to test it and the machine said it was good so i went ahead and bought a new on so please explain if u can
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post #20 of 21 (permalink) Old 02-29-2008, 02:40 AM
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not sure how to explain other than to say i dont trust their machine or the caliber of the guys who run the tests.
Once again I am not telling you that your alternator is bad.. I cant diagnose your car over the internet however you have so far ran a lot of tests and not found anything wrong in the car thus far.
I would try the last test I suggested and let us know what you find. As I mentioned before it may be a good idea to take the car to a qualified BMW shop and have it tested by a qualified technician. Im happy to help as much as possible but theres only so much I can do when im not standing in front of the car.
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post #21 of 21 (permalink) Old 02-29-2008, 05:10 AM Thread Starter
 
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yeah im really cosidering putting it in the shop
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