I still need to contact ConnectedDrive to make sure they don't deactivate my VIN when Feb 2022 rolls around but it has been working fine for about a month now. Sure enough, the only thing they had to do is program the TCU using ISTA+. They gave me the 3G TCU as a keepsake, and I managed to query the tech that performed the upgrade. So when I went to take back the car to await the arrival of the replacement battery modules they've already replaced the TCU, and I successfully activated cooling as I walked to the car. Maybe contact ConnectedDrive in addition. At first they sound unsure that this could be done but I replied that the only thing needed to be done is to program with ISTA+, which I don't have access to and no expertise to use it. I gave the service rep the 4G TCU part number (84-10-6-836-777) to order because I was not sure they would install if I bought it outside of their supply chain, and put the work order to replace the 3G one and program its replacement. I decided to get my 3G TCU replaced when I brought my i3 in for HV battery warranty test (see other post). I read posts of the 4G TCU part number that directly replaces the 3G TCU, posts of other BMW model owners talking about the upgrade and a single post of an i3 owner that got their broken 3G TCU replaced with a 4G one under warranty. I for one like the ability to set the car to cool before I get to the door, and real time traffic is very useful to avoid jams along my routes. Some laughed it off and have let their subscriptions lapse long ago. I received the email from ConnectedDrive services stating as much and I'd get free services until the end date, even though I had already renewed service until Nov 2021, so 3 months free. Those of us that own an i3 with a 3G Telematics module (TCU) have been told by BMW that we're out of luck and there is no "technology upgrade" available to keep ConnectedDrive services running past Feb 2022.
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