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10-06-2021, 09:59 PM | #1 |
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Help regarding changes to car after 3G Cellular Technology replacement
I recently took my car to the dealership for the 3G Cellular Technology replacement and there were a couple changes to my car that that I'm looking for insight on. One of the changes was that I would get a couple files when reading my ECU using BPM software. One of those files was a text file which I no longer get. This is semi concerning but not that big of a deal since the warranty was practically worthless at my BMW dealership anyway.
The other change is that my car honks twice if I lock my door when leaving the engine running which I occasionally do on purpose (e.g. after pulling car out of garage to take out the trash, etc). I understand why car manufacturers would do this as my wife's along with other cars do so but I liked my car better without the honking. My car is far from silent so the honking is unnecessary. Anyone have insight on either of these changes? I have an Enet OBD cable and a USB OBD flash tuning cable but I have never looked into coding due to it seeming complex. Is there a simple tool that I can use to disable just the honking for locking the doors when the engine is on? I like everything else as it and don't want to change anything else.
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10-07-2021, 08:14 AM | #2 |
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Yes, you can disable horn lock (VAM_HORN_AT_SECURE) in FEM_BODY module using E-sys.
You can also use Bimmercode to do that but I don't use that software.
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10-07-2021, 05:27 PM | #4 |
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They probably have the first 4g setup, which still needs to be upgraded. The 3g to my knowledge can not be upgraded at all. My 2016 needs the update. My 2015 435i was not eligible
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10-08-2021, 02:45 PM | #5 |
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BMW should at least make the hardware available.
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10-10-2021, 07:02 PM | #6 |
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In speaking to BMW, I was told that there is no way to upgrade the earlier (pre 2015) system. The hardware is not available and what is being installed in the post 2015 units is not compatible in any way. I was trying to see if it would be possible to use a 4G module that is designed for micro controllers and "hook that in in some way. However I cant find sufficient information to try such an approach. Maybe there is someone out there that can dig up that info.
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10-11-2021, 06:46 PM | #7 |
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i had the hardware update and software as well and some things changed
so, I went to Braman BMW down here in South Florida. and my car was eligible for a hardware and software update.. so what they change was the tcm which is the telematic communication module. They updated the software so the new hardware is compatible with the idrive system. what i notice now is that the car has a efficiency dynamic graph in the dash board., also, the exhaust on sport mode sounds. before it didn't sound. and also i notice the rev matching works better. anyone with same experience? by the way where i can check which software my car has, by the way my car is an m4 2016 build date was late 15s
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10-12-2021, 11:34 AM | #8 | |
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10-12-2021, 11:51 AM | #9 | |
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10-12-2021, 12:23 PM | #10 |
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I bought my 2017 brand new so some of these changes weren't how my car came. Do you think they may have done a full I-step update?
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10-12-2021, 03:36 PM | #11 |
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10-14-2021, 03:18 AM | #12 | |
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11-26-2021, 11:18 AM | #13 | |
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11-26-2021, 11:29 AM | #14 |
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Don't know if this helps, but retrofitmybimmer.com sells EVO head units, and if that would allow updating the TCM (telematics module) to a matching unit, it could be a possible fix. As I have read here, just updating the TCM won't work with the NEXT head unit in my 5/15 M3. The aforementioned head unit is currently priced at $1400 though.
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11-27-2021, 09:04 AM | #15 |
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When you get the 4G TCM update done the I-Level gets updated to the latest and greatest from BMW. The ECU is re-locked and the car goes back to stock 100%. Any previous coding is wiped out. Just had this done.
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