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E70 N52 Extended Cranking at Startup E70 N52 Extended Cranking at Startup
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  #11  
Old 10-28-2022, 09:22 PM
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Well well, it looks like this issue has finally caused a complete failure. Car just cranks (not the starter, not the battery) so it seems the transfer pump/fpr has finally died.

Has anyone had experience with DIY'ing the replacement of this part? Looks kind of complex.

https://www.realoem.com/bmw/enUS/sho...diagId=16_0659

Part 2 on this diagram (16117195469).
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  #12  
Old 10-28-2022, 09:46 PM
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I also came across this tonight, which can give a no-start condition. Not sure if it has been done on my vehicle, but will try to ask BMW next week.

https://static.nhtsa.gov/odi/rcl/201...6V746-3479.pdf
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  #13  
Old 11-02-2022, 10:36 AM
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Update: the car is running and driving again. It seems to start fine in the morning after sitting all night.
Last edited by richardb; 11-07-2022 at 08:21 PM.
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  #14  
Old 11-07-2022, 08:22 PM
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I'm calling this a confirmed fix. The car starts right up every time (so far) and sounds / drives great. Let's hope the issue doesn't come back.

Complete DIY here: https://youtu.be/7N78Y_5Mcz8
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