Hyundai Ioniq 28kWh - thread 2.0

Mickeroo · 13-10-2024 09:25AM

https://www.boards.ie/discussion/comment/122713742#Comment_122713742

I'm pretty sure they do. There is a ptc heater aswell which will kick in at first when it's cold that can use a good chunk of power.

I noticed before if you just press the "a/c" button instead of "auto" or "Heat" it will still heat the cabin (slowly) but pull much less power, so I presume doing that makes it just use the heat pump. No idea if I'm right about that though.

Soarer · 14-10-2024 11:31AM

Here's one for the learned.

I bought a Yuasa HSB056 battery from Halfords back in August. Ne'er an issue until yesterday. When I'd sit into the car, the interior lights would start flickering. When I start the car, a couple of warning lights would appear, but then disappear. Late last evening, I started the car, but it didn't actually start. I had to turn her off and try again, then it worked. Figured it must be the 12V.

Checked it this morning with the OBDII and CarScanner app, and it's saying it's only at 10V. Strangely, the little indicator on the battery is still green, saying it's ok.

I've had the usual, infrequent notifications come morning time that the auxiliary battery had been charged overnight.

Surely if the battery is that low/bad, it should be charging it every night? And what are the odds that the battery is actually faulty?

I have it trickle charging at the minute to get me through the next however long.

14-10-2024 11:46AM

https://www.boards.ie/discussion/comment/122717461#Comment_122717461

It's incredible really that this issue still persists on newer Hyundai's too. I had mine fail to start recently as herself sat in it to have lunch but didn't start it and ran the battery down. I removed it and charged it up, it's been fine since.

Soarer · 14-10-2024 12:01PM

At least it’s not just me!

Just reattached the battery and she’s sitting nicely at 12V.
I was thinking I was after doing something wrong. I’ve the interior/Reg plate/full beams switched to LED and was thinking they’re drawing off the battery. Also have a little receiver for wireless CarPlay adaptor always plugged into the usb, and was thinking it’s that too. But even if it was, surely it should keep it topped up?!

Soarer · 14-10-2024 03:22PM

Another update.

After charging and leaving her sit there for small while, I checked again and she was back down to 10V. Brought her over to Halfords, then ran a test, and the machine advised a replacement.

New battery swapped in, and she's sitting at 12V for the last couple of hours.

Fierce strange with the other one. Less than 4 months old.

15-10-2024 09:41AM

https://www.boards.ie/discussion/comment/122718572#Comment_122718572

I assume they replaced it free of charge? Pardon the pun.

zg3409 · 15-10-2024 10:59AM

Latest infotainment software checks and tops up battery more often. I had a datalogger on my battery for a while. It still only checks it every few hours and tops up if needed. This may not be enough depending on how worn the 12 volt is etc.

Soarer · 15-10-2024 11:23AM

https://www.boards.ie/discussion/comment/122720800#Comment_122720800

Yeah.
There’s a 5 year guarantee with the battery.

Soarer · 15-10-2024 11:24AM

https://www.boards.ie/discussion/comment/122721101#Comment_122721101

That’s the one you update yourself? Think I’m on the latest version of that.

zg3409 · 15-10-2024 01:03PM

https://www.boards.ie/discussion/comment/122721212#Comment_122721212

Yes,

Soarer · 15-10-2024 01:46PM

Thanks.

Do you happen to know the latest version? Mine is 016.3.230911

Edit: Never mind. Found the newest version is 017.1.240306. Downloading it now and will install later.

Also, checked the new battery this morning after her sitting idle overnight and she was at 12.1V. Delightful.

baldshin · 15-10-2024 02:35PM

https://www.boards.ie/discussion/comment/122721726#Comment_122721726

Got a link handy by any chance to the new software?

Soarer · 15-10-2024 02:46PM

I don't really.

You have to download the updater and install it onto your computer from here

https://update.hyundai.com/EU/E1/Main

You work through the installed software, telling it which car you have, and it downloads the relevant software. You can then use the same software to install said download onto your car's SD card.

The list of software versions is here.

https://update.hyundai.com/EU/E1/updateNoticePopup/oXNJ3H

loopymum · 15-10-2024 06:09PM

My software is ancient, kearys would promise to update it during servicing but never did

Can I use the update it myself

Soarer · 15-10-2024 06:14PM

Yeah, use the installer linked above, and the SD Card that’s in your car.

The installer walks you through everything to be fair.

zg3409 · 15-10-2024 11:05PM

You may need a usb to SD adapter if your laptop does not have one and it can take a while to go through the whole process. I noticed the screen slower to respond after updates.

baldshin · 16-10-2024 02:24PM

https://www.boards.ie/discussion/comment/122722083#Comment_122722083

Ah thanks a million. Only have a Chromebook so don't think I can use the updated software but will borrow a laptop/Mac and give it a go.

baldshin · 17-10-2024 01:56PM

Got the update done, surprised to see a few actual handy changes 7 years later! The ability to adjust brightness/contrast on the reversing camera in particular is nice!

baldshin · 04-11-2024 01:32PM

Installed a new blower motor for the cabin today as the old one had gone annoyingly loud. Bought a replacement on AliExpress for €80, much better than the €160 quoted from a breakers for a second hand one. Installed, turned on air, and nothing coming from the vents....little did I know that lhd and rhd cars have different blowers! Turned out the motor turned the opposite way and the fins were also opposite. Swapped the spade connectors on the new motor which reversed the spin, and voila, I now have a nice quiet, working motor again!

joe1303l · 05-11-2024 10:29AM

https://www.boards.ie/discussion/comment/122797955#Comment_122797955

Maybe post a link to the replacement part, might be useful to others if it’s a common issue.

baldshin · 05-11-2024 05:03PM

https://www.boards.ie/discussion/comment/122801594#Comment_122801594

That's an idea! To access, there are 3 clips holding a panel beneath the glovebox, unclip and remove. Next there are 3 screws holding in the old fan. Get a torch, get on your back and have a look, they're pretty obvious. Remove and the old fan drops down. Disconnect the block connector attached to cables.

Take the new blower and swap the red and black spade connectors, they just pull out. Then follow the steps above in reverse to fit the new blower. 5 minutes once you know what you're doing, maybe 25 first time you get down there!

https://a.aliexpress.com/_EwcGZxB

obi604 · 07-11-2024 05:53PM

via the paddles on the 28 Ioniq I know you can change the level of regeneration.

question: with the highest level of regen, is the car capable of one pedal driving?

baldshin · 07-11-2024 09:14PM

https://www.boards.ie/discussion/comment/122813142#Comment_122813142

No, the braking is pretty strong when you lift off the accelerator, but nowhere near strong enough for one pedal driving and impossible to stop without the brake pedal.

obi604 · 08-11-2024 01:49PM

It seems from what I read that most Ioniq 28's even after 7 years old and 100,000km+ etc still have battery health of close to 100%, is this ringing true with owners on here?

if so, are you charging your car to only 80% to mind the battery or just simply charging to 100%?

Soarer · 08-11-2024 01:54PM

Yup, still showing 100% for me. 181 Reg. 150k kns on the clock. Always charge to 100%. She’s not baby’d in the slightest.
Can’t remember DC charging her much.
They seem to be ridiculously over-engineered.
Think it was Unkel once said “two thirds of a Tesla for one third of the money.”

witnessmenow · 08-11-2024 02:49PM

https://www.boards.ie/discussion/comment/122813792#Comment_122813792

Assuming the 28 is the same as the 38. It brakes pretty strongly at level 3. At all levels it slows the car down til about 10KM/h and doesn't slow down past that. You can manually extend the regen below 10km/h (down to fully stopped) by holding the left paddle in, so sort of one pedal driving!

obi604 · 08-11-2024 03:24PM

https://www.boards.ie/discussion/comment/122816022#Comment_122816022

Thanks for input, that is ridiculous really, 150,000km and no degradation, seriously good.

djan · 08-11-2024 03:37PM

https://www.boards.ie/discussion/comment/122816501#Comment_122816501

There is degradation but is quite low and also helps by the battery having a buffer.

Old diesel · 08-11-2024 09:28PM

https://www.boards.ie/discussion/comment/122815997#Comment_122815997

Hyundai actually recommend charging to 100 percent at least once a month.

I charge it to 70 or 80 percent if its not going to be used for a while afterwards.

However if i know the car will be used tomorrow and I'm charging tonight - I always charge to 100 percent.

Going to 100 percent isn't in itself the big issue imo.

The issues are when you do things like repeatedly leave the car sitting at 100 percent for long periods.

Even then EVs like the Ioniq often have a top buffer meaning that 100 percent on the cars display isn't literally 100 percent.

Hyundai sold us these cars as 28 kwh but there's actually 31 kwh gross capacity when new but 3 kwh of that isn't available to the user.

That 3 kwh makes up some or all of our buffer.

Old diesel · 08-11-2024 09:36PM

As an aside - I think charging to 100 percent at times can actually be helpful to the battery.

Teslas with non LFP packs don't actually have the top buffer I mentioned in last post.

Tesla thinking is to tell the user to charge to 80 or 90 percent for daily use and you can actually set a charge limit on the Tesla to facilitate.

However sometimes you see reports of Teslas having unbalanced cells leading to cars needing a new pack.

Which I think could have been avoided if the cars were charging to 100 percent more often and therefore the cells allowed to be balanced.

A cell balancing process happens at 100 percent you see.....

Hyundai Ioniq 28kWh - thread 2.0

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