2013 Z4 Fault Code U0100 - BMW Forum - BimmerWerkz.com
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post #1 of 3 (permalink) Old 07-28-2018, 11:55 AM Thread Starter
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2013 Z4 Fault Code U0100

My daughter has a 2013 X4 i28. Originally I had two faults codes, P0072 and P0073 both of which indicate a problem with the ambient temperature sensor. I replaced the faulty sensor and those faults have cleared, but now I have a fault U0100 that doesn't show up in the shop manual. An online search says that the U0100 code means Lost Communication With ECM/PCM "A".

Does anyone know what the U0100 code means and how to remedy it?

Thanks
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post #2 of 3 (permalink) Old 08-08-2018, 10:43 PM Thread Starter
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Over 200 views

I've had over 200 views on this forum and over 150 on another with no replays.


I this that difficult a problem? Has no one an answer?
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post #3 of 3 (permalink) Old 09-07-2018, 12:22 PM Thread Starter
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After all these "reads", no one came up with an answer. The car healed itself. Who would have think?
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