I can't keep up with all the forums, so not on the Ioniq forum - just the Facebook group and KZfaq comments.

Yes do check. Glad this video helped.

Thanks for this info. Most dealers don't like undertaking warranty work as it doesn't pay as well as customer billing work (of course). I know one Hyundai dealer that does their best at turning away warranty work. Unless you purchased the car from them, you've got no chance. With this job, its easy for the dealer to skimp on the flushing, which is why I guess some owners are soon back with the same issue.

Who was the dealer? I'm impressed that they were so thorough. I can understand why they'd be less than impressed with the time allocated.

Yes apparently my problem is water pump because they already did 3 times the flushing and refilled the new coolant and after that the same day I got the signal Refill Coland

Funny enough, someone has commented on the follow up video to this that was posted on the channel yesterday, that their Hyundai dealer has ruined the bottle by forcing the cap off the wrong way!

Yes, I would hope the coolant change delays the scheduled change for a further 4 years. But I wonder if this is actually tracked properly. I would recommend writing the date this warranty coolant change job was done in the service book.

Well they put these things in bottles for us to check anyway, but of course, car maintenance and checking fluid levels etc is a thing of the past. Cars have got too complicated, so owners just don't do any of it any more. But then I suppose that's ok as we have warning lights now when things are low.

To be fair, I cant even imagine as to why they would of engineered a left hand thread into the coolant cap 😵‍💫

To keep the out and stop them topping up with "normal" coolant.

Thanks 👍

Did you get your handle replaced under warranty or just glued back together for now?

Done under warranty. They wanted to see the damaged handle at first but as this had dropped off when travelling I didn't have it. They made a bit of a fuss about that but did it under warranty in the end. Thanks for the video.

Yes, clearly Kia & Hyundai have made an expensive mistake using the wrong spec coolant in their EVs. Or maybe their supplier who makes the BSC-1 coolant has cocked up. I just hope the new BSC-2 coolant is better.

I wonder if the low coolant message is activated by an actual low fluid level switch within the coolant expansion tank or a low fluid flow sensor, I.e. there is enough fluid within the system, just not enough flow due to the "crystalization"? Typically, coolant would be rated to not freeze and maintain its viscosity in its rated ambient operating conditions.

Any updates since the flush? Did they get lots of crystals out when they flushed it?

I've had it serviced in the dealership in Lincoln and been told to just ignore it - it just happens randomly. :-D I wish I'd know about these specifics so I could argue about it. I did try to google the recall for the Ioniq (mine is Feb 2019) but didn't actually find any relevant information. Where should I look, please? I could ask the dealer, but seeing they "tricked" me the first time I asked, I wouldn't get any answer probably...

@@zealander4724 I don't have the recall/TSB number to hand, but its on one of the comments here or on the other video I made on this subject. Or ask in the Ioniq Facebook group. But it is an active recall on the 38kWh models, so your dealership should do this job. However, it sounds like you need to use another dealer anyway, as it sounds like they wouldn't have the equipment needed as they have to buy in a new flushing tool.

Yo vivo en un clima calido que menos de 18 grados no baja de temperatura ambiental ¿igual se cristaliza?

Thanks.

If its above when its cold, then you should take a bit out. Maybe keep it though, in case you need to top it back up. Its expensive stuff!

Its going in to Hyundai on Tuesday this week, so will do an update video.

​@@GoGreenAutos hello , is there any update on this problem..

@@alazzamabdallah7360 An update video coming on this channel in about 30 mins time.

You need to get the recall done on it ASAP. The crystallising is within the battery pack. It needs flushing out. I can only assume, the coolant channels are blocked if not done, which could result in battery pack damage.

@@GoGreenAutos hi Matt. I have contacted my local Hyundai dealer in France and he told me that they can't do anything for now because i didn't get the warning message issue. The reason is that Hyundai won't accept to do anything, unless a "problem" is reported. Apparently, a slowly decreasing coolant level is not a valid problem.

@@TH3G4M3SM4N Strange, as in the UK Hyundai are dealing with this differently. When I booked ours in, I didn't tell them the refill message had come up or that the coolant had dropped. I simply asked "Do you have the equipment do to the coolant flush job in the Ioniqs. I understand there's a recall to do this". They looked up the car and said, "Yes we can do that".

The video explains the actual fix! Book it in and they'll flush the system and replace with the new coolant.

Your local Hyundai dealership. Or search for "Hyundai BSC-2".

The new coolant they should be using is BSC-2, which is blue (like BSC-1)... in the UK anyway.

@Go Green Autos thanks I'll check with them. Will you do a follow-up video about the issue, and was it resolved for you?

The 28kWh has the same water pump. The water pump is running when the car is running or charging, so the 12V battery size doesn't really come into it as the DC-DC converter is providing 14.5V to charge the battery and run all the low voltage components. As for as your last comment "I’m not convinced the car’s charging system is sufficient", it is, but the issue here is charging time, not power. Too many EVs are not running for long enough periods to properly charge the 12V battery. Much of the problems would be solved with a larger capacity 12V battery. But yes, you're doing the right thing to occasionally top up your 12V battery. You'll have a far more reliable vehicle. My feeling is that the repeated error/warning is due to dealerships not properly flushing out the debris in the battery pack. Hyundai say its a 3 hour job in the TSB, which means its really a 3-4 hour job, but they pay the dealers for 3 hours labour. Its clear from customers that some are having their car back in 2 hours, which means they are not doing enough (or any) flushes.

No. It is happening with all the 38kWh Ioniqs. The coolant they've used is crystallising, so they are changing to a new type. As far as the "big battery change" - I've not heard of anyone having this done before !!!

There are some 2020 38kwh which fall in a certain VIN range that have got a battery recall. Someone posted about this on Ioniq forum. Incidentally, I’ve had my car a few weeks and saw it fell within the range and called my dealer to check and they said there’s no recalls for it. Baffling. I’ve had no issues with the battery or coolant issues though (so far 🤞).

Mine has been with Hyundai at Tilbury (I live in the far north of England!) because of charging issues (they gave me a BMW i3 4-seater as a replacement - what an awful car to drive). After a lot of hassle, it was delivered back to the dealership just over a week ago, and I picked it up last Friday - exterior was absolutely filthy. Drove home - no problem. Have been out on a couple of short runs - no problem. Today the "Refill coolant" popped up on a 1 mile run to see friends. Spent time with friends, and no error on the way home. I haven't had a chance to actually physically look at the coolant level yet. I absolutely love this (leased from new) Ioniq EV, but I've only had it for just over 27 months and battery charging problems plus the 3-months in Tilbury have marred 15 of them. Now this. The garage is an hour's drive away, and they won't pick the car up - I have to call a recovery service. And they'll only provide a tiny petrol courtesy car (which barely gets up the hills here) if I attend the garage in person. If I add in the fact that I have friends from the US visiting for two weeks, and I'm relying on a 5-seater, the whole affair has been a disaster. If someone were to ask me what I though of this car I would say it's a fabulous car to drive, but don't touch Hyundai with a barge-pole.

We've had ours done. It went into Hyundai for a day and they drain the coolant, flush out any sludge from the battery pack (hopefully) and refill with a different type of coolant. So far, so good. But only time will tell if this new coolant is any better and doesn't crystalise up. I wouldn't let this put you off buying one. They're still the best EV under £25K.

@@GoGreenAutos Many thanks for your reply. Is there any indication of how the issue will affect the battery? I suppose it won't cool properly and could potentially overheat when it clumps but if the warning catches it early enough I suppose that might never happen (unless you ignore the warning)?

@@davebown8145 Yes I suppose the crystallisation being caused with the original BSC-1 coolant will result in blocked coolant channels within the battery pack and degraded cooling. However, as far as I know, there's no one reporting any issues resulting from this. The symptom of this issue is a reduced coolant level in the reservoir bottle, which then the coolant flush and change to BSC-2 coolant is required. I have a feeling the battery cooling isn't as essential as you may first think, in the UK climates anyway. The previous 28kWh models didn't have wet cooling and instead used a fan mounted below the rear seat. Batteries like to be hotter than our outside temperature in the UK, even in the summer. I think the cooling system is only really needed when you DC rapid charge. And because they have reduced the charging rate on the 38kWh models to 44kW, it probably doesn't get that hot either.

@@GoGreenAutos Yeh I saw on the Bjorn Nyland channel, when he was testing rapid charging he found that the battery was actually too cold (although winter conditions) to charge at optimal speed, think he was only getting something like 26kw. So I suppose it could benefit from some heat! Thanks again

@@davebown8145 Yes, everyone worries about battery cooling, but in the UK, battery heating is required more than cooling. On vehicles that have battery heating, this is used far more than the cooling. I guess this worry comes from the Nissan Leaf, which has neither and is the worst.

Campaign no. 23-01-049H June 2023 Applicable Vehicles: • 2019 - 2022MY Kona EV (OS EV) vehicles produced from 05/07/2019 to 10/12/2021 • 2020 - 2021MY Ioniq EV (AE EV) vehicles produced from 11/01/2019 - 05/17/2021

Obviously to stop owners opening it. I guess they changed to this when they used the new EV specific low conductivity coolant, discouraging owners from topping up their own coolant. The Ioniq 28kWh had a normal cap, but then had 'normal' coolant too.

​@@GoGreenAutos I wonder if people were putting windscreen washer fluid in it by mistake as this is often the same blue colour.

@@gavjlewis Yes, I suspect that could happen.

@@gavjlewis Good point. I suspect that does happen.

Our light came on twice, but the coolant level did drop the first time. Anyway, all sorted now as it went in yesterday. Well I hope its all sorted. Some owners are now reporting continued problems even after this change to BSC-2 coolant!!!

​@@GoGreenAutos well car went in today and the receptionist said all done. No quibble about warranty even though the first 2 services I have no record of. Time will tell if the flush and refill has worked. Had it's 3rd service done at the same time( tyre kick and washer bottle top up. )

@@iantaylor1172 What did 3rd service cost you?

@@GoGreenAutos kicking the tyres was £72. But if I had booked online it would have been £59.40. the 4 yr is the expensive one at £484. Only reason for having Hyundai service is for the warranty in case any thing goes drastically wrong. But legally they can't deny warranty unless any lack of service is attributable to the fault that occurs. Been in the motor trade long enough to know what you can and cant do under warranty. First time I've ever had car serviced at a garage in 43 yrs

@@iantaylor1172 Isn't the 4yr one expensive because it includes a coolant change? That shouldn't be needed now that this was done under this recall. But I do wonder if they can cope with this situation and it might be a case of "computer says no".

Only briefly used a rapid charger (see kzfaq.info/get/bejne/fJ9kiKeard25YZc.html) but yes the Ioniq 38kWh has a peak charging rate of 44kW, whereas the previous 28kWh model has a peak charging rate of 69kW. This is irrelevant to many drivers who can charge at home, as DC charging will be few and far between, especially with the extra range the bigger battery gives you. In our case, the 38kWh Ioniq will never get a rapid charge during our ownership.

I looked at this in this video kzfaq.info/get/bejne/nJ6blpV9r9W7enk.htmlsi=vl1Atn4jbqflOro0