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      04-05-2026, 10:02 PM   #1
cyam
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Bimmerutility not working - need mapping update

I can no longer code certain modules in BU. Anyone else experienced this?


I have a 2020 M340ix and I had the gearshift console replaced by the dealer due to the EPB not working.

They did a full update of all the s/w. I don't do any updates (even have the SIM disabled) as I am tuned. But I let them do the updates this time.

To my pleasant surprise the DME was not re-locked, so I reflashed MHD (it did a long flash) and I am back. Anyway this is a side point.

I went to program everything back to how I had it. I started with Bimmercode and did a lot of the basic coding there - no issue.

Then I went to Bimmerutility to code the more complex items. That did not work.

Using Android app - it kept crashing every time I'd try to do a backup. So I moved to Windows with an enet, and that too did not work.

I could not code certain modules - ACSM5 or DSC modules would not allow me to code - BUT BDC was fine.

I contacted BimmerUtility and they confirmed that BMW have changed the mappings and they need to make an update for it to work again.

So I am waiting on the update in order to complete my coding.

Anyone else on the latest update noticed this?
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      04-06-2026, 03:26 AM   #2
MichaelNRW
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It´s time to move on an switch to EsysUltra.
It´s working, with current data and the developer has excellent customer service.
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05/2022: BMW G21 ///M340i xDrive Touring - Individual Verde Ermes
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      Yesterday, 09:15 AM   #3
Mike330i
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My G20 LCI was at the dealer for the Starter Motor recall. I also asked them to look at two unrelated issues - Sat Nav intermittent start-up & wipers going to Service Position whilst driving...
They found some "error codes" and consequently updated the vehicle software - it is now on 11.2025
BimmerUtility is now unable to code the HU-MGU module - so I can't fully enable Comfort+
Is the Head Unit now locked - or is BU mapping out of date?
I can see higher mapping numbers mentioned on BimmerScene - but do not know how to update BU with new mappings without waiting for a full update.
Can any one help?

Regards, Mike (please give me back my Comfort+)
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      Yesterday, 07:44 PM   #4
cyam
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Quote:
Originally Posted by Mike330i View Post
My G20 LCI was at the dealer for the Starter Motor recall. I also asked them to look at two unrelated issues - Sat Nav intermittent start-up & wipers going to Service Position whilst driving...
They found some "error codes" and consequently updated the vehicle software - it is now on 11.2025
BimmerUtility is now unable to code the HU-MGU module - so I can't fully enable Comfort+
Is the Head Unit now locked - or is BU mapping out of date?
I can see higher mapping numbers mentioned on BimmerScene - but do not know how to update BU with new mappings without waiting for a full update.
Can any one help?

Regards, Mike (please give me back my Comfort+)
I emailed BU - they said mapping needs to be updated. That was a couple of weeks ago. I emailed then a few days ago and asked when it'd be done - they said "in a few days" - so sometime around now they should be pushing out a mapping update.

But no, nothing is "locked".
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      Yesterday, 08:12 PM   #5
b58jam
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Quote:
Originally Posted by Mike330i View Post
My G20 LCI was at the dealer for the Starter Motor recall. I also asked them to look at two unrelated issues - Sat Nav intermittent start-up & wipers going to Service Position whilst driving...
They found some "error codes" and consequently updated the vehicle software - it is now on 11.2025
BimmerUtility is now unable to code the HU-MGU module - so I can't fully enable Comfort+
Is the Head Unit now locked - or is BU mapping out of date?
I can see higher mapping numbers mentioned on BimmerScene - but do not know how to update BU with new mappings without waiting for a full update.
Can any one help?



Regards, Mike (please give me back my Comfort+)

newest is 2026/3.32
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      Today, 02:49 AM   #6
Mike330i
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Quote:
Originally Posted by b58jam View Post
newest is 2026/3.32
I had seen some mention of 2026/3 - before my car went in for the work - so I was a bit surprised to see 2025/11 installed by the BMW system.

I know that OTA are usually one step back - but a main dealer would normally install the latest. Unless my car is no longer supported, it's iDrive 8.0

Regards, Mike.
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