[Pictor]

Originally Posted by Toastmaster

Agreed, appreciate the update, I'm also in the same boat (can't charge at home only). The service manager of my local dealer is coming to my house today to do further investigation after I took it in and they couldn't find any codes. Were they not able to see codes previously?

Is this the dealer on the east side or the one by the International District?

[thebishman]

With more than one owner having no luck L2 charging at home, (after a recent update?), there has to be corrupt firmware somewhere in the recent download that is impacting a (very) small subset of iXs surely.

[Toastmaster]

Originally Posted by Pictor

Is this the dealer on the east side or the one by the International District?

Eastside (BMW of Bellevue).

He just finished and it looks like they're going to need to replace the CCU, just like for ok31.

Some interesting tidbits for others that stumble upon this:
1. Apparently the shop just got another case of this issue on an i4, that it doesn't charge at their home or other homes, but does L2 charge at public places.
2. Apparently the voltage at homes is different than at the dealer/commercial (single vs 3 phase), so this is why my car was able to charge fine at the dealer with my charger boxes.
3. When I brought my car into the dealer last week and they said there weren't any codes, in fact there was a code but it was a generic "couldn't charge" code, which can apply to an issue on the car or charger.

The service foreman brought an i4 and it was able to charge fine at my home, so clearly it's something wrong with the car.

That things were working until the most recent software update was applied also leads me to believe that something with that update affected the CCU. It sounds like more and more reports are being surfaced as more and more cars are getting these updates, and I hope that others won't have to go through having to prove the entire matrix of charging/car combinations before getting traction.

If you stumble upon this thread and are having a hard time getting the dealer to fix it, if you're able to get another car to charge at your home successfully, that should be enough evidence. And I guess point out the voltage differences in residential vs commercial power in the US.

[ok31]

Originally Posted by Toastmaster

Eastside (BMW of Bellevue).

He just finished and it looks like they're going to need to replace the CCU, just like for ok31.

Some interesting tidbits for others that stumble upon this:
1. Apparently the shop just got another case of this issue on an i4, that it doesn't charge at their home or other homes, but does L2 charge at public places.
2. Apparently the voltage at homes is different than at the dealer/commercial (single vs 3 phase), so this is why my car was able to charge fine at the dealer with my charger boxes.
3. When I brought my car into the dealer last week and they said there weren't any codes, in fact there was a code but it was a generic "couldn't charge" code, which can apply to an issue on the car or charger.

The service foreman brought an i4 and it was able to charge fine at my home, so clearly it's something wrong with the car.

That things were working until the most recent software update was applied also leads me to believe that something with that update affected the CCU. It sounds like more and more reports are being surfaced as more and more cars are getting these updates, and I hope that others won't have to go through having to prove the entire matrix of charging/car combinations before getting traction.

If you stumble upon this thread and are having a hard time getting the dealer to fix it, if you're able to get another car to charge at your home successfully, that should be enough evidence. And I guess point out the voltage differences in residential vs commercial power in the US.

Im glad finally to learn I’m not the only one, sadly. Got a call from my service advisor letting me know like you that the foreman will have to come out with some test kit to verify why it’s not charging at my house. I told them this weeks ago but now it’s BMW NA getting involved because they want to understand what’s going on.

They told me literally they haven’t heard about this with anyone else so for now I’m waiting for the foreman to come once BMW gives the ok. Until then I’m not hating the X7 so they can keep my iX all they want. I’m on the better end of that deal even if gas prices in NYC are astronomical.

[ok31]

Originally Posted by ggalanis

At least it is heading towards the right direction now!
Thanks for keeping us posted!

I am just concerned it took this long for them to see/find the fault codes considering how easily you could reproduce the issue with your setup.

It’s in the really slow boat to solution.

[Pictor]

Originally Posted by Toastmaster

Eastside (BMW of Bellevue).

He just finished and it looks like they're going to need to replace the CCU, just like for ok31.

Good to hear. I used to have good luck with BMW of Bellevue before AN bought them out. I was a bit surprised they would take the extra effort to come out to your home. They're closer to me than BMW Seattle but that's my go to dealer now.

Did they say what the voltage deviation was? A three phase circuit would supply a J1772 L2 EVSE with 208v while a split phase home service here in the US is 240v.

Sorry about the CCU but I'm glad to hear there seems to be a path to resolution.

[thebishman]

What software version are you both on?

[ok31]

Im on the latest march that they updated but this all started when I asked for plug and charge (im only suspecting this because that was the only thing to change since last successful to first failed)

03/2024.42

[Toastmaster]

I'm on 03/2024.30.

The foreman didn't say exactly what the voltage difference was other than 208V for commercial 3-phase, and I know we have 240V at home.

[ok31]

Originally Posted by Toastmaster

I'm on 03/2024.30.

The foreman didn't say exactly what the voltage difference was other than 208V for commercial 3-phase, and I know we have 240V at home.

So what’s the latest? My shop foreman was out here today and looks like all error codes point to CCU but the NA engineer is being difficult and challenging it to say it’s my charger which we clearly know it’s not. Really frustrating.

[Toastmaster]

Originally Posted by ok31

So what’s the latest? My shop foreman was out here today and looks like all error codes point to CCU but the NA engineer is being difficult and challenging it to say it’s my charger which we clearly know it’s not. Really frustrating.

Sorry to hear, it sounds incredibly frustrating Did they bring another EV car to charge at your house?

I've had much better luck. The dealer was able to get approval, order, and receive the replacement CCU in only a few days turnaround, and I just got it replaced yesterday. Things are working again, thank god.

Some interesting tidbits from the notes, maybe you'll find them useful:

- "...the CCU is internally shorted and not charging at residential 240V"
- "TSARA Requested the following test when the vehicle arrived at shop:
1. Checked fault memory. Faults stored for charging electronics.
2. Performed the charging history test plan, CCU charging test plan, charging check, and HV socket test plans. Found the vehicle only fails at the higher voltage of residential, 240V, and does not fail at the commercial voltages of 208V. CCU internal short and needs to be replaced. Closed session to send FASTA data."

[ok31]

Originally Posted by Toastmaster

Sorry to hear, it sounds incredibly frustrating Did they bring another EV car to charge at your house?

I've had much better luck. The dealer was able to get approval, order, and receive the replacement CCU in only a few days turnaround, and I just got it replaced yesterday. Things are working again, thank god.

Some interesting tidbits from the notes, maybe you'll find them useful:

- "...the CCU is internally shorted and not charging at residential 240V"
- "TSARA Requested the following test when the vehicle arrived at shop:
1. Checked fault memory. Faults stored for charging electronics.
2. Performed the charging history test plan, CCU charging test plan, charging check, and HV socket test plans. Found the vehicle only fails at the higher voltage of residential, 240V, and does not fail at the commercial voltages of 208V. CCU internal short and needs to be replaced. Closed session to send FASTA data."

Thanks, this is good to hear. Gives me hope that if or when they finally approve the CCU, I should be back in business.

I’m not terribly pushing because I’m content with this loaner but still the principle is bananas

[thebishman]

Originally Posted by ok31

Thanks, this is good to hear. Gives me hope that if or when they finally approve the CCU, I should be back in business.

I’m not terribly pushing because I’m content with this loaner but still the principle is bananas

Have you thought about using your Lemon Law if it’s been over 30 days since they’ve had your car? Or the number of times they’ve attempted to fix the issue but have failed?

A threat to enact the LL along with giving them the info from above might well move things along!

[ok31]

Originally Posted by thebishman

Have you thought about using your Lemon Law if it’s been over 30 days since they’ve had your car? Or the number of times they’ve attempted to fix the issue but have failed?

A threat to enact the LL along with giving them the info from above might well move things along!

I’ve shared the above tidbits you provided, thank you for that, with my shop foreman and he was going to pass that on. I have not had the car in the shop for a total of more than 30 days. Although right now is 2 weeks since I’ve dropped it off. this is the third time it’s in their shop so between all instances I’m probably pushing the 30 days. Let’s say I go that route, what is my end game? Same car same price or does it just get me out of this car? Never had to deal with it so not familiar with all the process and who do i threaten? The sales people or the shop?

They’ve made some progress in evaluation though not sure what that is. Asked for additional time and patience. Going to oblige.

[NomoTesla]

Originally Posted by ok31

I’ve shared the above tidbits you provided, thank you for that, with my shop foreman and he was going to pass that on. I have not had the car in the shop for a total of more than 30 days. Although right now is 2 weeks since I’ve dropped it off. this is the third time it’s in their shop so between all instances I’m probably pushing the 30 days. Let’s say I go that route, what is my end game? Same car same price or does it just get me out of this car? Never had to deal with it so not familiar with all the process and who do i threaten? The sales people or the shop?

They’ve made some progress in evaluation though not sure what that is. Asked for additional time and patience. Going to oblige.

Of course it's going to depend on the laws of your state, but the point of lemoning a car is to make you whole. That means the dealership has to pay you back the full purchase price of the vehicle. Considering that prices have dropped, it might work out to your benefit doing this.

[ok31]

I’m going to give them a bit more time to give me some clarity. At this point really curious what the issue actually is and why I’m the only one with it so for curiosity sake dealing with it. They gave me a comparable vehicle to drive so I’m not that upset, yet…

[thebishman]

Should you choose to peruse the LL process I strongly advise you to retain the services of an experienced LL attorney in your area. It should not cost you anything as the attorney is compensated by the automaker, not you or the selling dealership.
You have the choice of a refund of the full purchase price of the vehicle which can also extend to additional items you’ve had added, such as PPF you may have installed, or the manufacturer can supply you with an equivalent replacement vehicle.

Using an Attorney takes all of the stress off of your shoulders, and I would never try to go through the process without one.

Just something to keep in mind.

[ok31]

Originally Posted by thebishman

Should you choose to peruse the LL process I strongly advise you to retain the services of an experienced LL attorney in your area. It should not cost you anything as the attorney is compensated by the automaker, not you or the selling dealership.
You have the choice of a refund of the full purchase price of the vehicle which can also extend to additional items you’ve had added, such as PPF you may have installed, or the manufacturer can supply you with an equivalent replacement vehicle.

Using an Attorney takes all of the stress off of your shoulders, and I would never try to go through the process without one.

Just something to keep in mind.

Thanks, all good recommendations. Sounds like I should be hearing an update early next week.