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Old 03-05-2021, 02:40 PM
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X5 , 4.8i (n62) 2009 - going crazy

Long story short , the car was sitting for a week without a battery and alternator , the reason the alternator was bad and I rebuild it , meanwhile the battery was in charger , I bolt everything back to place , and the car start then shut down , I get 30 error reliated to can and some other error , please help me , the car won’t start and I really think what could go wrong .
Also the idrive doesn’t work ! , and he used too before .
A Video of the problem :

https://youtu.be/5WczWP-BEZs

The image is after I cleared the code , the car have 4x4 DSC error before , except this nothing !
I try using inpa and maybe I broke it ? , one of computer not “ready”MCS







https://youtu.be/5WczWP-BEZs">https://youtu.be/5WczWP-BEZs" type="application/x-shockwave-flash" width="425" height="350">

















Last edited by Shawnbass; 03-05-2021 at 02:47 PM.
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Old 03-05-2021, 02:42 PM
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Video of th car problem (the car doesn’t get fuel for some reason)

https://youtu.be/5WczWP-BEZs
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Old 03-06-2021, 07:10 PM
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Someone ?
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Old 03-08-2021, 10:21 AM
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Looks like you have a bus communications problem. Step 1: Retrace your steps to see what you have dismoounted/disconnected in the vehicle. Make sure everything is connected correctly. Especially in the trunk where your battery lives. Your battery voltage looks high in some pictures then low in the later ones.

Step 2 delete all codes, then start and see which ones come back.
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Old 03-08-2021, 12:42 PM
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Agreed. Something is taking down the bus. There are a lot of positive connections on the block over the battery. Be sure they are all seated and that your different battery sensors are plugged back in.

Did you rebuild it or buy a rebuilt? I went through 3 rebuilt alternators on my N62 before breaking down and buying a new one. Each of the 3 rebuilt ones would range from 11v to 16v so the regulators weren't doing their job. Haven't had a problem since the new one. It was aftermarket new via Ebay FWIW.
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