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EV3 ongoing charging issues

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30K views 354 replies 39 participants last post by  Grugymynydd  
#1 ·
Some members will remember that I had issues with charging my EV3 which I collected in December. The car is currently in the garage and I have a courtesy car to give them a chance to resolve it. Having tried charging on other chargers away from home (both fast charge on DC and slower charges on 7 kw, 22kw using AC) I have been able to confirm to the garage that when fast charging there is no problem, but anything using the AC port causes issues. E.g. on a 22kw it was only charging at 3.4 kw, on a 42 kw AC only it was charging at 10.3 kw. I have saved all of the screenshots from the App and provided them. I am also now charging the replacement courtesy car on my home charger with no issues. Just wonder if anyone else has had this issue since I last posted? Thanks in advance
 
#305 ·
I suspect and hope that a dealer update would also include some testing, but cannot see that taking very long, unless the update followed a problem that needed time to verify it was fixed. That said I have often had the dealer say they need the car for the day and found that they did not even start work until mid to late afternoon. On one occasion they left it so late they could not finished and kept the car for another day. On another occasion booked a while you wait minor service only to be told, on arrival, that there was a safety recall and they needed the car for the day. Left my car for an MoT on my way to work, when I arrived back at 5:30 they had not even started. To be clear this covers all makes and models over the years. Not seen any evidence of difference between dealerships.
 
#299 ·
I can’t believe the delays owners are suffering, I told the dealer, and it was not even the dealer we purchased the car from, I was not happy, in no uncertain terms, when this happened to us, we were seen to straight away, so I guess it is dealer dependent, we have had our replacement EV3 for several weeks now, and are now happy. Anyone suffering this, put your foot down, as this is a widespread issue we’ll know about now.
 
#303 ·
I don’t ‘expect’ a problem after home charging, but I certainly ‘fear’ it. To the extent that if I need the car for something important, I won’t leave charging until the night before. I will instead charge up the day before that, so that if there should be a problem, I have a whole day to find a solution or workaround.

Which I’ll be honest, is far from ideal
 
#308 ·
Update on fix, I took my car to the dealer for the ICCU update, after testig there it did not fix the problem so will now wait 2 weeks for car to be booked in for ICCU replacement. It has now taken 4months since the problem occurred, disappointing with how this is going,my dealer blames Kia on delays.
 
#313 ·
I have the reducing consumption ICCU problem. i.e. it drops to 1.6 KWh charging or whatever it is. I've been AC charging (at home on a 7.2 Kw) successfully for several weeks now having set the car to only take 90% of the max rate(ie approx 6.5 KWh). I have the car booked in for a diagnostic but it is several weeks away.

I'm retired and don't do that many miles and rarely do I have to be somewhere urgently.

Given the number of issues with ICCU I'm beginning to wonder whether I might just stick with what I have rather than get a replacement ICCU in however many weeks/months it might take. Better the devil you know.

I'm slightly concerned that if I don't report a known error that it might somehow affect my warranty in the future in some way.

Thoughts? On sticking and warranty point.
 
#315 ·
I have the reducing consumption ICCU problem. i.e. it drops to 1.6 KWh charging or whatever it is. I've been AC charging (at home on a 7.2 Kw) for several weeks now having set the car to only take 90% of the max rate. I have the car booked in for a diagnostic but it is several weeks away. I'm retired and don't do that many miles and rarely do I have to be somewhere urgently. Given the number of issues with ICCU I'm beginning to wonder whether I might just stick with what I have rather than get a replacement ICCU in however many weeks/months it might take. Better the devil you know. I'm slightly concerned that if I don't report a known error that it might somehow affect my warranty in the future in some way. Thoughts? On sticking and warranty point. Many Thanks
 
#325 ·
Hi MangoNo5
If you are not aware, you will need to be sending in your letter of rejection to the dealer before six months is up. Your rights under the Consumer Rights Act gets weaker after 60 days. However if your car has a history of serious issues starting inside 30 days of ownership you may have some hope to return and get a refund of sorts. Good luck.
 
#323 ·
Technology Connections just did a piece on his Ioniq 5 ICCU failure - and also his brother’s Ioniq 6 ICCU failure …
Looks like Kia/Hyundai are gonna get a large smack in the face if they continue with this approach to their cars’ problems.
4 and 5 year old Niro and Souls still losing their 12 Volt battery- problem still not sorted - 5?years !
4 yo Soul here, and it’s on it’s 3rd 12-volt battery… had to buy last one myself because it was just before a holiday. Got a new Yuasa, and it’s failing now - after a year.
Will probably shell out on a deep-discharge battery next.
 
#324 ·
Over 4 years on original battery here & no issues. Only had 9K when I got it 18 months ago, so spent a long time sat doing nothing.
Pretty certain that there was a bad batch of batteries at one point, but they will all have long been replaced.
Many issues are owner related, such as sat in ACC mode, rather than leaving car turned on or utility mode. Washing car/working on car in same mode. Leaving charge below 20% so BMS does not top 12V side up.
 
#326 ·
Our Kia Souls is over 4 years old and still has original 12V battery. No special treatment or additional charging. Never given a problem. Purchased a boost charger soon after buying the car, just in case, but never used it.

Always use Utility or Drive mode when car is unlocked. Never use Accessory mode. Don't leave the car for long periods with main battery below 20%.
 
#333 ·
I am awaiting an ICCU replacement and the latest firmware update. It would be great if this was a complete and lasting solution to the Hyundai / Kia ICCU problem on the e-GMP platform. Sadly this is only the most recent of several attempts at a solution and only time will tell if they have finally found the answer. It is doing considerable reputational damage now and I am seeing reports of people deciding against Hyundia / Kia cars or saying only lease, don't buy, as there is no confidence that the ICCU will not fail on multiple occasions and even after the end of warranty period.

Being optimistic, I live in hope but, being realistic, maybe not expectation.
 
#339 ·
I’ve not been on here for a while, but just received a notification of 15 new messages! Sorry to hear people are still have ICCU problems.

As per my previous posts, we have not had any issues with charging at all, since the dealer swapped our EV3 for an identical one, (Better choice of colour for us 😊) as our EV3 was in the dealer for 3 plus weeks, while we had a loan EV3, very early on, when the ICCU problems started, and they didn’t know what the fix was,I do hope that these problems can be resolved quickly for everyone involved.
 
#341 ·
I have had the update and after reading these recent posts checked my chargers report for the last charge which was from 40% to 78% and it didn't drop below 7.4kw which is what my charger is rated at. I can set the charger to charge at any rate up to the max so later in the morning as an experiment I set it to charge at 1.9Kw for the extra couple of % and that was also stable.
Image
 
#342 ·
@mateybloke

Just seen your youtube video about charging dropping to 1.5kW. I am sorry to say it looks like your ICCU is faulty. A few points from my experience.

1. If you want to test on a Zappi, set the Zappi to FAST mode to avoid any possibility that it is related to Intelligent Octopus Go (IOG). (don't forget to disable smart charging in the Octopus app). When charging drops check the PWM on the Zappi, if it is 53% then the Zappi is offering full rate.

2. If you want to check on a public or other charger, make sure it is single phase 7kW as 11kW charging will not show the issue. Check by my dealer when I had the issue. (I suspect it is because the load a distributed so less than 7kW per phase.)

3. Driving the car for a short distance reset it and charging started again at 7kW before it later drops back to approx 1.5kW.

4. The time taken for charging to drop to 1.5kW can vary from tens of minutes to hours.

5. Lowering the charging rate using the Kia app will mask the problem. I could charge at 90% without problems.

6. Eventually, while conducting a test charge on a dealer's 7kW charger, the car failed to charge at all after about 10 minutes. Tried a second time with same result. This is what finally got Kia to agree to replacing the ICCU. The car would however still charge on my Zappi with it set to 90% in the Kia app.

7. All firmware updates had been applied, but had failed to clear the problem (I suspect that the damage had already been done).

8. Since ICCU was replaced charging is back to full power on my Zappi, including with IOG. Not sure but it looks like there may now be an initial ramp up to full power over a short period (soft start). I am hoping this will be an end to my ICCU problem, but will need several more months to start to have confidence rather than hope.

9. The number of reports of ICCU problems does seem to have reduced of late, so maybe the most recent firmware update has been successful in reducing the risk of damage or maybe most of the susceptible ICCUs have now failed and been replaced, but as in point 8 above it will take a long time to gain confidence, especially as this has been ongoing since the introduction of the EGIMP platform and Kia have not explained the problem and the fix.
 
#343 · (Edited)
@mateybloke

Just seen your youtube video about charging dropping to 1.5kW. I am sorry to say it looks like your ICCU is faulty. A few points from my experience.

1. If you want to test on a Zappi, set the Zappi to FAST mode to avoid any possibility that it is related to Intelligent Octopus Go (IOG). (don't forget to disable smart charging in the Octopus app). When charging drops check the PWM on the Zappi, if it is 53% then the Zappi is offering full rate.

2. If you want to check on a public or other charger, make sure it is single phase 7kW as 11kW charging will not show the issue. Check by my dealer when I had the issue. (I suspect it is because the load a distributed so less than 7kW per phase.)

3. Driving the car for a short distance reset it and charging started again at 7kW before it later drops back to approx 1.5kW.

4. The time taken for charging to drop to 1.5kW can vary from tens of minutes to hours.

5. Lowering the charging rate using the Kia app will mask the problem. I could charge at 90% without problems.

6. Eventually, while conducting a test charge on a dealer's 7kW charger, the car failed to charge at all after about 10 minutes. Tried a second time with same result. This is what finally got Kia to agree to replacing the ICCU. The car would however still charge on my Zappi with it set to 90% in the Kia app.

7. All firmware updates had been applied, but had failed to clear the problem (I suspect that the damage had already been done).

8. Since ICCU was replaced charging is back to full power on my Zappi, including with IOG. Not sure but it looks like there may now be an initial ramp up to full power over a short period (soft start). I am hoping this will be an end to my ICCU problem, but will need several more months to start to have confidence rather than hope.

9. The number of reports of ICCU problems does seem to have reduced of late, so maybe the most recent firmware update has been successful in reducing the risk of damage or maybe most of the susceptible ICCUs have now failed and been replaced, but as in point 8 above it will take a long time to gain confidence, especially as this has been ongoing since the introduction of the EGIMP platform and Kia have not explained the problem and the fix.
Cheers for the Info. It’s a very difficult thing to replicate since it’s only happened to me twice ever.
I’ve tried replicating it several times since to no avail. It just ramps up normally to 7kW or slightly higher.

One thing i have noticed is that when i plug in and wait for it to start on IOG i initially get a red error charging light but it records no DTC. Then IOG starts as it should slightly delayed 2-3 minutes later and charges fine after that.
If i disable IOG and charge on Solar only it starts instantly with no error. I will have to try that in fast charge mode.

I will check my PWM reading on the Zappi but i’m pretty sure it’s getting the normal figure.

When i first had the problem way back in January i’m pretty sure i disabled IOG reconnected and tried a fast charge and it stayed at 1.5kW

Brian
 
#345 ·
When the problem started for me it was only occasionally but after a month or so it became all the time.


I never had problems with solar charging or charging below 100% charge current, nor was there problems charging on the dealer's 11kW charge point.

I don't believe the dealer ever found any error reports in the car, even when the charge failed completely. They also said that the Kia system did not show others reporting this problem, even though there were reports on this forum. I do not doubt my dealer as they worked with me to investigate the problem.

I would suggest that you try to do as much charging as possible in single uninterrupted charges of several hours at 100% charge current on a 7kW charge point. You should be okay to disable Octopus smart charging for a month and only charge when battery level is below 50% when possible. Better to prove the issue rather than have it drag on. If you absolutely must get a full charge for a particular journey, then the the 90% charge current fudge should work.

Good luck.
 
#347 ·
@mateybloke

Just seen your youtube video about charging dropping to 1.5kW. I am sorry to say it looks like your ICCU is faulty. A few points from my experience.

1. If you want to test on a Zappi, set the Zappi to FAST mode to avoid any possibility that it is related to Intelligent Octopus Go (IOG). (don't forget to disable smart charging in the Octopus app). When charging drops check the PWM on the Zappi, if it is 53% then the Zappi is offering full rate.

2. If you want to check on a public or other charger, make sure it is single phase 7kW as 11kW charging will not show the issue. Check by my dealer when I had the issue. (I suspect it is because the load a distributed so less than 7kW per phase.)

3. Driving the car for a short distance reset it and charging started again at 7kW before it later drops back to approx 1.5kW.

4. The time taken for charging to drop to 1.5kW can vary from tens of minutes to hours.

5. Lowering the charging rate using the Kia app will mask the problem. I could charge at 90% without problems.

6. Eventually, while conducting a test charge on a dealer's 7kW charger, the car failed to charge at all after about 10 minutes. Tried a second time with same result. This is what finally got Kia to agree to replacing the ICCU. The car would however still charge on my Zappi with it set to 90% in the Kia app.

7. All firmware updates had been applied, but had failed to clear the problem (I suspect that the damage had already been done).

8. Since ICCU was replaced charging is back to full power on my Zappi, including with IOG. Not sure but it looks like there may now be an initial ramp up to full power over a short period (soft start). I am hoping this will be an end to my ICCU problem, but will need several more months to start to have confidence rather than hope.

9. The number of reports of ICCU problems does seem to have reduced of late, so maybe the most recent firmware update has been successful in reducing the risk of damage or maybe most of the susceptible ICCUs have now failed and been replaced, but as in point 8 above it will take a long time to gain confidence, especially as this has been ongoing since the introduction of the EGIMP platform and Kia have not explained the problem and the fix.
@mateybloke

Just seen your youtube video about charging dropping to 1.5kW. I am sorry to say it looks like your ICCU is faulty. A few points from my experience.

1. If you want to test on a Zappi, set the Zappi to FAST mode to avoid any possibility that it is related to Intelligent Octopus Go (IOG). (don't forget to disable smart charging in the Octopus app). When charging drops check the PWM on the Zappi, if it is 53% then the Zappi is offering full rate.

2. If you want to check on a public or other charger, make sure it is single phase 7kW as 11kW charging will not show the issue. Check by my dealer when I had the issue. (I suspect it is because the load a distributed so less than 7kW per phase.)

3. Driving the car for a short distance reset it and charging started again at 7kW before it later drops back to approx 1.5kW.

4. The time taken for charging to drop to 1.5kW can vary from tens of minutes to hours.

5. Lowering the charging rate using the Kia app will mask the problem. I could charge at 90% without problems.

6. Eventually, while conducting a test charge on a dealer's 7kW charger, the car failed to charge at all after about 10 minutes. Tried a second time with same result. This is what finally got Kia to agree to replacing the ICCU. The car would however still charge on my Zappi with it set to 90% in the Kia app.

7. All firmware updates had been applied, but had failed to clear the problem (I suspect that the damage had already been done).

8. Since ICCU was replaced charging is back to full power on my Zappi, including with IOG. Not sure but it looks like there may now be an initial ramp up to full power over a short period (soft start). I am hoping this will be an end to my ICCU problem, but will need several more months to start to have confidence rather than hope.

9. The number of reports of ICCU problems does seem to have reduced of late, so maybe the most recent firmware update has been successful in reducing the risk of damage or maybe most of the susceptible ICCUs have now failed and been replaced, but as in point 8 above it will take a long time to gain confidence, especially as this has been ongoing since the introduction of the EGIMP platform and Kia have not explained the problem and the fix.
@mateybloke

Just seen your youtube video about charging dropping to 1.5kW. I am sorry to say it looks like your ICCU is faulty. A few points from my experience.

1. If you want to test on a Zappi, set the Zappi to FAST mode to avoid any possibility that it is related to Intelligent Octopus Go (IOG). (don't forget to disable smart charging in the Octopus app). When charging drops check the PWM on the Zappi, if it is 53% then the Zappi is offering full rate.

2. If you want to check on a public or other charger, make sure it is single phase 7kW as 11kW charging will not show the issue. Check by my dealer when I had the issue. (I suspect it is because the load a distributed so less than 7kW per phase.)

3. Driving the car for a short distance reset it and charging started again at 7kW before it later drops back to approx 1.5kW.

4. The time taken for charging to drop to 1.5kW can vary from tens of minutes to hours.

5. Lowering the charging rate using the Kia app will mask the problem. I could charge at 90% without problems.

6. Eventually, while conducting a test charge on a dealer's 7kW charger, the car failed to charge at all after about 10 minutes. Tried a second time with same result. This is what finally got Kia to agree to replacing the ICCU. The car would however still charge on my Zappi with it set to 90% in the Kia app.

7. All firmware updates had been applied, but had failed to clear the problem (I suspect that the damage had already been done).

8. Since ICCU was replaced charging is back to full power on my Zappi, including with IOG. Not sure but it looks like there may now be an initial ramp up to full power over a short period (soft start). I am hoping this will be an end to my ICCU problem, but will need several more months to start to have confidence rather than hope.

9. The number of reports of ICCU problems does seem to have reduced of late, so maybe the most recent firmware update has been successful in reducing the risk of damage or maybe most of the susceptible ICCUs have now failed and been replaced, but as in point 8 above it will take a long time to gain confidence, especially as this has been ongoing since the introduction of the EGIMP platform and Kia have not explained the problem and the fix.
Hopefully nothing more than a temporary software glitch that has been rectified by subsequent software updates. However if it proves to be more than that @mateybloke is the person to find an answer. I am no electric car expert, far from it, but I did learn from my previous electric car that sometimes, just don't overthink it, give it a couple of days and the problem sometimes just vanishes never to return again.
 
#348 ·
It would be great if @mateybloke 's problem is a software glitch that goes away. I am sure that there are many cars that have not experienced an ICCU failure. However the ICCU appears to have been giving problems on all Kia/Hyundai/Genesis models based on the E-GMP platform. There have been several firmware updates but problems have persisted; whether the latest update will work only time will tell. There was no rush to judgment or overthinking in my case and I (and the dealer) spent a lot of time and effort investigating my issue and all firmware updates were applied and tested before Kia authorised replacement of the ICCU. Looking back over this thread and searching other forums and YouTube will show that for several people this has been no glitch that will go away. Kia/Hyundai/Genesis do not agree to replace an ICCU without investigation. Some cars have had more than one replacement. I do not regret spending the time and effort to investigate and get the faulty unit replaced as my EV3 is now charging reliably and I hope the latest firmware updates will prevent any damage to the new ICCU but only time will tell.