Update following the coolant recall in our Hyundai Ioniq 38kWh EV

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After experiencing the low coolant issues in our 2020 Hyundai Ioniq Electric 38kWh (see • Refill coolant message... ), it went into the Hyundai dealer for the coolant recall. This video is an update following that recall where the cooling system was flushed and coolant replaced.
Hyundai have a recall currently ongoing to replace the coolant in Ioniq 38kWh vehicles. These use an "electric vehicle battery coolant" called BSC-1. It's basically a low conductivity coolant. Hyundai are now replacing this with a BSC-2 coolant following many owners experiencing a drop in coolant level which has been found to be caused by the BSC-1 crystallising up within the battery pack.
To see other Hyundai Ioniq EV videos, see the playlist • Hyundai Ioniq EV 28/38kWh
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Опубликовано:

12 май 2023

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Комментарии : 70

@glenreynolds2079 Год назад

I just brought my 2020 into my local Hyundai dealership and they were very helpful once I told them what to do as a result of the information provided on your Channel. It's taking three days though because they didn't have enough coolant to flush it out in stock. It was actually your channel that helped me decide to buy 2 Hyundai ioniqs. Thank you so much for making these videos!

@Lawson855 5 месяцев назад

I brought my 2021 Ioniq in to the dealership for the coolant recall (which they didn’t even advise me of and I only knew about it from your channel). They said it would take about two hours to complete and they offered to drop me off at home and pick me up when it’s done. Turns out it took the whole day because they claimed the flushing machine was giving them trouble. So after calling a couple times during the day they ended up offering me a loaner vehicle for the evening and said it would be ready the next morning. I picked it up and the work seems fine. Thanks to watching your other videos I wasn’t so worried about the presence of coolant splashes or drops in the general area as I knew to expect that this would happen while removing hoses, filling coolant, etc. Thanks again for your informative videos and love from Ontario, Canada!

@Lawson855 5 месяцев назад

Update: during the evening after I picked up the car, the “add coolant” light came on again! I turned off the car and started it up again, and it’s gone. I wonder if there’s a faulty sensor or something 😮

@GoGreenAutos 5 месяцев назад

Apparently (so I'm told), there aren't any sensors. It's all done by measuring the water pump. But let it settle down and see if it continues throwing the error. It sounds like they may have not done the flushing well enough.

@stormchaser8576 2 месяца назад

My 2020 ionic limited just popped this code. I'll be bringing it in today to have the job performed. I obviously panicked at first as I was 120 miles from home when it showed, but your video, combined with a diagnostic run clip showing this issue does not cause battery overheating, I was confident to drive it home. Charges fine, drives fine, discharge/recharge rates unchanged. Just this stupid annoying warning notification that you can't clear from the wonderful display these vehicles have. I absolutely love the car and I hope this issue doesn't force me to make the decision to trade it in.

@happysporran Год назад

Thanks for this, afraid I'm now wary of the 38kwh. Hope you continue giving updates.

@MidlandCruiser Год назад

Don't be...great car in my opinion. All this was a recall so no charge for you if need doing. If you want travel faster on longer journeys than have a look at the 28kwh, Tesla Bjorn here on RU-vid did a 1000km challenge with both and the 28 did it about 2 hours faster because it can charge fast, and doesn't coldgate...once or twice a year I can put up with the slower charge speed (need to stop because of my boys anyways) solid car with a good quality drivetrain👍

@happysporran Год назад

Thank you, good to have an owner's feedback.

@MidlandCruiser Год назад

Hello Matt, thanks for the update..I think part of the problem is lack of heat in the battery so the coolant never gets pumped around, especially if only charged on 7kw. My car had the same problem, now fixed by Hyundai and no issues since (about 5weeks). I think once a month rapid charge (maybe more often in the winter) to get that coolant moving is the way to go. I really don't get why Hyundai put liquid cooling on this car with only 50kw (if you lucky) charging speed, it doesn't make sense, especially because the 28 could charge a lot faster but was only air cooled, what was Hyundai thinking? Great videos by the way, new subscriber😉👍

@judebrown4103 Год назад

Interesting theory...though mine is only ever charged on a rapid charger. If you can call it that think the highest charge rate I've seen is about 38kW but then I usually drive the mile or so straight from home so it's rarely warm, might see forty something after a bit longer on the road. I'm getting the refill coolant warning nonetheless. Haven't managed to pop the bonnet yet or got round to ringing the Hyundai garage either due to ill-health, my own and elderly m-i-l so I hope it holds up until I do.

@douglasbkerr Год назад

Nissan Leaf had many cooling issues because of passive cooling (i.e. none). Cooling has a little to do with charging, but most importantly with day-to-day use in hot climates. Without water cooled battery packs, one could expect battery life to be severely affected in hot climates.

@brianmerrick3250 Год назад

Never had any problems, Hyundai Colchester changed the coolant when they did the 2nd service still no problems excellent car I am a retired driving instructor having more than one advanced tests ,I drive as I see fit for the situation not fast or slow my 2021 Hyundai electric always does 5 /6 mpk and in summer a full charge gives 244 miles and it does do that milage winter full charge is 200 miles .

@KokoReko2 Год назад

Thanks for the update, my dealer used some green coolant, they insisted that they are using what Hyundai told them, and on the way they have destroyed the plastic threading's of the reservoir, so I'm waiting on that part as well. After their job the notification popped a couple of times, but now for about two weeks it disappeared completely and my level did dropped form Max to the middle or less, guess there were some air bubbles in the system.

@GoGreenAutos Год назад

The dealer's workshop technicians clearly aren't following the TSB then, as that is the wrong coolant and the reservoir bottle is left hand thread, so they must have forced it off the wrong way and broke it. I showed this in my previous video here ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-CUs-YoGTMlw.html The low conductivity coolant the Ioniq with wet battery cooling should be the BSC-1 or now the BSC-2 coolant, which are both blue.

@pughdy Год назад

Had mine done last month. Exactly the same thing happened and within a week of driving it the coolant level dropped so much that there was barely anything in the expansion tank. Even the Refill Coolant warning came back on. Took it back to the dealer and they topped it up, been fine since so probably just air bubbles working themselves through the circuit.

@howusu1231 Год назад

I like your effort so let me help you out mate. The contamination is coming from the radiator due to residual overspray from the controlled atmospheric brazing process. Hyundai needs to flush the cores before installation with a hot water then let the cores dry out by oven baking them so that the oxide layer is properly regenerated. Changing the coolant won't solve anything until that radiator core is hot water flushed.

@agrilias 11 месяцев назад

We had a flush and replacement done a couple of months ago. This was due to re-call. We'd had no problems at all prior to this. Checked level last week and had haf dropped to just above min. Took the car back to the dealer. They said they were happy with this snd wouldn't top it up. They said if there was a problem, that the level was more likey to rise? Sounds odd to me, but for now well just have to keep watching it.

@StephenLyons1984 Год назад

thank you

@boredKiwi Год назад

It's not hard to imagine that after an extensive flush and refill, an air bubble worked its way up to the top. What concerns me a more is that the later coolant type of the same colour doesn't seem to be marked as such on the reservoir.

@TH3G4M3SM4N Год назад

Hi Matt, have you DC charged the car since the flush? Is it possible that the battery pack coolant loop is closed by default and it opens to get coolant in only when battery overheats (while rapid charging for example), thus the coolant level appears to drop ? The new liquid seems darker in color. I read that BSC-2 concentration is 60% whereas BSC-1 concentration is 50% which may explain the darker color.

@judebrown4103 Год назад

Thanks for this Matt. Are you confident that the flush through was done properly as you demonstrated in a previous video? Also if the light continues to come on after they've done it is it still covered by warranty, do you know?

@GoGreenAutos Год назад

No. I have very little confidence in main dealer workshops. The stuff I see and hear that is (or often is not) carried out at main dealerships is scary! Yes, you should have no problems with any future coolant issues being under warranty as it will be the same issue and the fact that they have an recall in place for it should resolve in conflict.

@judebrown4103 Год назад

@@GoGreenAutos ok Matt, thanks for this. When I can manage to pop the bonnet I'll have a look at the level and take it from there. Just not looking forward to the time and hassle involved in sorting it out...

@daveprice1608 Год назад

Have had the coolant flush and refill. BSC2. Two months on slight drop in level but my weekly mileage is relatively low and only using a 7kw charger at home. Matt is there.something in the suggestion to fast charge once a month?

@2011ppower Год назад

Not had an issue with my 2020 Ioniq coolant change carried out at the 36 month service all seems fine!

@GoGreenAutos Год назад

Good to hear

@MyImperfectEcoJourney Год назад

Have just checked mine which was flushed, cleaned and refilled 2.5 months ago. It is below the minimum level and was at Max. Will call the garage Monday but I guess it is going back in. I haven't had any refill coolant messages which is actually a bit concerning as the level is below minimum.

@AdrianColes Год назад

If it is still in the reservoir then should be ok. Guessing fault triggers when the pump cavitates if there is no fliuid in it.

@wolfi4493 Год назад

After changing the coolant with the new procedure the error was already still active. My bodyshop told my there is a third water pump in the service drawings but is has as a part number only a note. It was a hard job to find out the correct part and with a big help from our Hyundai general importer the right part was found. 😀 Now after two week no issues any more 👍 Time to fix error: 1 and 1/2 year

@davebown8145 Год назад

Maybe worth adding the part numbers here if you have them? Cheers

@kimedwards3937 Год назад

I have same coolant recall next week. The last two summer's when it is hot the 7kw charger has cut to 3.4kw and sometime stopped. Hope this fixes this. Will make sure that they use bsc2. Thanks for info. Hyundai have been very slow at solving problems like 12 volt battery up-date. The dealer kept telling me nothing wrong but update after 2.5 year fixed problem.

@GoGreenAutos Год назад

I have a feeling that this recall to replace the sludging/crystallising coolant is only going to be effective if they properly flush the residue out of the battery pack and cooling system. If the 3-way valves aren't removed (which I'm pretty sure they aren't) then a complete flushing out cannot be completed. I've done another video on the channel about a coolant flush on the 28kWh Ioniq and Hyundai's TSB isn't thorough enough. I have my suspicion that this problem will continue.

@AdrianColes Год назад

Surely they’ll have kit/a button to press on their fancy OBD2 machine to actuate the valves as part of the procedure. Whether the dealer follows this correctly or not is another matter.

@decimal1815 4 месяца назад

A recurrent coolant refill warning seems preferable to coolant leaks that may cause a (potentially fatal) loss of power while driving due to conductive liquid entering the power control unit or some other critical component.

@frankradcliffe1374 5 месяцев назад

Hy mat had my battery fluid flushed on the recall but 6months later the fault is back I’m getting error message top up coolant, Hyundai cannot do the work for over 2 months

@nousername6056 8 месяцев назад

I did not know about this problem. Recently had a 4 year service with the dealer. One week after the service (the coolant was changed on warranty) the "refill coolant" message popped up. The coolant level is right at the max mark. After driving for about 50 km the message disappeared. Does anyone know why that might have happened ?

@user-ps6pt6or6f 8 месяцев назад

I took my 2020 Ioniq EV to the local dealer 6 months ago as part of the recall to have the coolant flushed out and refilled. Also the low coolant warning had come on. I now noticed that the coolant level had dropped to below the minimum mark. I do very low mileage and only trickle charge. I took it back to the dealer who has topped it up and confirmed there are no coolant leaks. I am not sure which coolant was used but I am pretty resigned to the fact that it is not fixed and I will be going back to the dealers in another 6 months.

@GoGreenAutos 8 месяцев назад

I've come to the conclusion some dealers probably aren't doing the flushing thoroughly enough which could result in debris/crystallisation being left within the battery pack.

@kimedwards3937 Год назад

Had cooling flush done. They used bsc2 coolant. The level in reservoir is now just above max level. The job took 3.5 hours.

@GoGreenAutos Год назад

Keep an eye on the level then

@davidadams5116 Год назад

Had mine done 2 weeks ago and its still on max as of today. I originally took it in for a rader fault that kept knocking the cruise control off and they did the flush under a recall. As for the radar, after a day of having it they diagnosed the radar unit as faulty and I am waiting for the part to come in. If anyone has trouble with theirs get it done before warranty runs out as I was told the part is extremely expensive and takes over4hrs to fit and test

@GoGreenAutos Год назад

Not heard of radar issues on the Ioniq before.

@davidadams5116 Год назад

@@GoGreenAutos When i first got the car and was driving home on cruise it knocked out with the message " forward collision disabled as radar blocked". I checked on the Hyundai forum and it seems a fair few people had this problem, lots of users in the USA were affected. As i previously said they had it for a day and now i am waiting for call to fit new radar pod

@clayton4115 Год назад

what's the mini box and cables hanging from your 12v battery?

@GoGreenAutos Год назад

A bluetooth battery monitor. A must have device, which I made a video on recently. See ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-kMkTCnaozw8.html

@ionutm6909 6 месяцев назад

Hello Matt. Can you make an update on this? After they flush the coolant are you still having issues with it? I understand that you have BSC-2. I have in my Tucson phev the same BSC-2 for now no issues.

@GoGreenAutos 6 месяцев назад

Nothing to report really apart from our two Ioniqs had the coolant change done under warranty and both have been fine since.

@rachelfaulkner7631 7 месяцев назад

I can't see another update video, but has this problem been resolved? Refill coolant loght came on the other day, 38kw 21 plate, 27k miles. It's booked in for a service and a coolant flush on Friday but im wondering if I should ask what coolant they're using, does it look like the BSC2 is keeping the issue at bay?

@GoGreenAutos 7 месяцев назад

Both our Ioniqs had the coolant flush/recall done and both have been fine since. They must use BSC-2 coolant. The repeated issues are most likely due to the garage not properly flushing the system and getting the sludge out. Seems some garages are doing this job too fast which indicates not enough flushing was done. Its a 2-3 hour job. If you get your car back in an hour, I would expect further repeats.

@rachelfaulkner7631 7 месяцев назад

@@GoGreenAutos That's great, thank you very much for your help. It's booked in as an all day job so I won't know how long they spend but I'll ask about it at least twice when I arrive (phoned yesterday and asked about which coolant they use and the lady I spoke to just said "it's the one that is recommended for your car, it's why it has been recalled") so they know I'll be a pain in the neck if they don't do a good enough job. At least I know now that it is a recall and they're not just doing it because the light came on. Fingers crossed!

@noelsullivan9302 11 месяцев назад

Hi matt i have same issue on my e niro .even after coolant recall the message still pops up .dealer has had it back twice and still no fix .also ive mine 2.5 years but ive never rapid charged it ,could that be an issue?

@GoGreenAutos 11 месяцев назад

No, its not anything to do with charging. Its the coolant they used. Is the dealer definitely refilling with the new BSC-2 coolant? If so, then the issue could be.... 1. they've not flushed out all the solids from the battery pack (some dealers clearly aren't doing the flushing correctly due to the speed they do this job) 2. you need a new water pump, as its the speed of the water pump that triggers the warning message

@PAAkhtar 17 дней назад

I bought an Ionic 2021 26K miles a month ago and the car has had three services, the last in March 2021. I don't have the coolant light showing (yet) and the reservoir is at max. Is the change of coolant something which I can request, is it a recall or must I wait until the warning shows up or until 4th year service when I will be charged (hugely) for it ?

@GoGreenAutos 15 дней назад

If its not been done, try to get it done before the 4th service as it will be done for free. Ask the Hyundai dealership if the coolant recall has been done. The campaign/TSB number is 23-01-049H.

@johnfaulkner6776 Год назад

My Kai Soul is another smallish battery (30 kWh ) car from the same broad family Hyundai / Kia with slowish charging - wonder if the same will happen? Just been serviced at Brayley's Oxford.

@GoGreenAutos Год назад

No, as your Soul doesn't have wet battery cooling.

@johnfaulkner6776 Год назад

@@GoGreenAutos thanks Matt. I am always amazed by how little I know about my own car. But it does stop me tinkering as one used to with ice vehicles! I did update the maps etc the other day but still no sign of the 20mph limits all around me!

@GoGreenAutos Год назад

@@johnfaulkner6776 Sign of a good reliable car. No tinkering or knowledge required.