Help! how can i reset the ecu on my x5 f15 ?

sanguzman · 12-21-2023, 12:08 AM

recently my x5 f15 xdrive40e starts to act wierd, how can i reset the ecu?

thanks for your help

E85 Sport · 12-21-2023, 04:50 AM

“Weird” is not helpful. Pull codes.

Qsilver7 · 12-21-2023, 05:17 PM

ECU? Which one? There are lots of ECUs (electronic control module) in a modern BMW. See an example of the communication bus topology chart below. Also, as mentioned above…your one word description of the issue “weird” does not help “paint the picture” of what your issue is about…or which of the multiple ECUs that you think is acting weird.

Until you can “pull a code”…can you give a better description of what “weird” thing(s) is happening which could help point to which of the many ECUs you think a “reset” will fix the issue.

Chilled · 12-21-2023, 05:30 PM

Based on that description, sounds like you need to do a Hard Reboot.

Here are the instructions I found.

12-21-2023, 12:08 AM	#1
sanguzman Registered 0 Rep 1 Posts Drives: bmw x5 2016 xdrive40e Join Date: Dec 2023 Location: Tijuana, México iTrader: (0)	Help! how can i reset the ecu on my x5 f15 ? recently my x5 f15 xdrive40e starts to act wierd, how can i reset the ecu? thanks for your help
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12-21-2023, 04:50 AM	#2
E85 Sport who is this noob 40 Rep 193 Posts Drives: from Spartanburg Join Date: Jul 2012 Location: The Evergreen State iTrader: (0)	“Weird” is not helpful. Pull codes.
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12-21-2023, 05:17 PM	#3
Qsilver7 Major General 4442 Rep 7,484 Posts Drives: F06 650ix GC / F15 X5 50i Join Date: Oct 2016 Location: Indiana, USA iTrader: (0)	ECU? Which one? There are lots of ECUs (electronic control module) in a modern BMW. See an example of the communication bus topology chart below. Also, as mentioned above…your one word description of the issue “weird” does not help “paint the picture” of what your issue is about…or which of the multiple ECUs that you think is acting weird. Until you can “pull a code”…can you give a better description of what “weird” thing(s) is happening which could help point to which of the many ECUs you think a “reset” will fix the issue. __________________ 2015 F06 650ix Gran Coupe`(Moonstone/Cohiba Brown)\| 2014 F15 X5 50i MSport (Space Gray/Mocha) Become a BMW CCA member! Click HERE to join and feel free to use my BMW CCA member #191509 as a referral.
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12-21-2023, 05:30 PM	#4
Chilled Major 364 Rep 1,019 Posts Drives: F85 X5M Join Date: Sep 2021 Location: Tiny Island, Middle of Nowhere iTrader: (0)	Based on that description, sounds like you need to do a Hard Reboot. Here are the instructions I found.
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Help! how can i reset the ecu on my x5 f15 ?