BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > AUDIO/VIDEO + BLUETOOTH + Electronics/Alarm/Software > TCU Memory Error A373

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      02-19-2011, 08:04 PM   #1

Drives: 07 335I
Join Date: Feb 2011
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Exclamation TCU Memory Error A373

Hey all,

I am a new BMW owner and I am having a problem I cant seem to figure out... Any input would help. Here are the details:

- I get error code saying that the SOS call system has a malfunction. I scanned the TCU module and got error code A373. I have tried removing the module (disconnecting power) and resetting the fault message but it keeps coming back, sometimes right away, sometimes after a day.

I found this posting:
which lists SIB 84 10 06 which seems to be the identical problem. However I cannot find any more information on this SIB or what to do to fix this.

My main questions are:
1) Do I have to buy a new TCU?
1A) If so can I just plug it in an go or does it have to be recoded by BMW Service/rape department.
2) Where can I find the SIB 84 10 06?
3) Does any one know for sure if there is a recall for any TCU's?

Any help would be awesome! Please please please!!!!
Appreciate 0
      02-20-2013, 06:44 AM   #2
Second Lieutenant

Drives: bmw E91 facelifted by me
Join Date: Jun 2010
Location: portugal

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no one helps i need help too
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