There are some screws and then some clips, it shouldn't be difficult to remove. I'm planning to do the same. You may also find it useful to have a look at the service manual here: https://docs.google.com/spreadsheets/d/1YEQiKRsAoy5DIBj_SJcduudYaCztavNdkA35jreHmV4/edit#gid=0

 

If you manage to do it, can you post some photos?

Sorry that link, I'm not sure how to download the service manual, it seems it is an excel sheet listing different members of Ioniq and their models?

 

You're welcome. May I ask a question? Why are you planning to isolate the outside of the wheelarchs instead of the interior for some reason? The photos I've seen with a complete isolation always show the isolation material in the inside part.

 

I'm planning to do just this as shown in the photos below. And considering the spray can solution on the panel.

Ideally I'd like to strip the interior and get to the rear wheel well arch from the inside (at least), but I don't want to go that route because of the time involved. Or maybe I may end up going that route, who really knows, I have to figure it out.

 

I was curious about the outside location too. In much older cars, vendors like Zeibart added coating to the underbody and wheel wells for rustproofing with the added benefit of noise reduction. But now manufacturers do that. More coating would change the frequency or amplitude of noise reduction, but it could be a challenge getting something to stick to the OEM coating.

 

In my case, noise seems to be quite dependand on tyre type - I have 17" and in my case I decided to change the standard Primacy 3 for Dunlop Bluresponse and the noise level went from almost unbearable to more than reasonable. In fact noise was reduced from being unable to hear the engine nose, to now being able to hear it. Not just the intensity decreased (2 dB measured with a sonometer, same road, same speed, same pressure), but the frequency composition of the noise is now also less disgusting. However I like "as silent as possible" cars so I still plan to isolate the trunk and probably the rear wheelarchs as seen in the photo above, since dissasembling the archwheel interior doesn't seem to be too difficult. I'll start with the first layer and measure again to decide on going ahead with the second.

 

That's very interesting because 3dB reduction is equal to 50% reduction in the power of the sound!

 

I think (?) that 15" weels is way better than 17".
Have anybody tried the 15" on the ev?

 

15" don't fit in the rear on the EV.

 

fronts were down to 3mm at 30,000 miles, but had a bulge in a side wall so had to change 1, so due to minimal tread left change both fronts

rear tyres are approaching 3mm so loikely to change them next month ready for winter

 

Regarding sticking sound proofing over the boot floor - I wonder what the implications are at MOT time in UK when the examiner needs to inspect the inside of the floor for corrosion.

 

Accordingly to this site

http://www.tyrereviews.co.uk/Tyre/Michelin/Energy-Saver.htm

91H - 91W the energy efficiency can range from E to B

 

I used three wool moving blanket from U-haul and stuffed them around the flat repair kit, and then added another on top (underneath the rear pad) - this seems to really dampen the noise and it's a much quieter ride now. Hope this helps!

 

I stuffed wool moving blankets around the bare metal surrounding the tire repair kit - worked great to reduce road noise.

 

This might give someone an idea for the Ioniq Electric. Not sure about other versions.

I don't have a photo, but if you pop open the front plastic wheel well liner and look behind the wheel arch closest to the firewall, Hyundai stuffed in a rectangular (what looks and feels like) padded likely waterproof foam sound insulation. There's surprisingly more room to put in even more sound insulation material in there as the one there from the factory is squishy enough to be pushed back further in exposing now more empty space/room that you can add more insulation to cover the entire area much better than the factory did. Now the problem is I'm not sure what material one can buy to match and be suited for this specific area, it would have to be waterproof and or weatherproof, but if you're a little sensitive and annoyed at the tire/road noise, this arguably could prevent more noise from entering in the cabin, but its my uneducated guess to why Hyundai added this in this specific area in the first place.

 

This bumped thread prompted me to ask if the hood is supposed to have sound insulation?

When I got my 2019 HEV home and popped the hood, I was expecting insulation because I’d seen photos with it but since I’m not experiencing any significant noise, I’ve kind of let it slide.

 

When I got my 2019 HEV home and popped the hood, I was expecting insulation because I’d seen photos with it but since I’m not experiencing any significant noise, I’ve kind of let it slide.

More to my point, are US HEVs supposed to come with sound insulation installed on the underside of the hood?

 

Noise enters the car mostly from rear tires, not the engine compartment.

 

I guess the most effective way to reduce road noise will be to wait until you replace the stock Michelin Energy Saver A/S, however, its hard for a customer to know how quiet any particular tire is before putting them on. Unless other Ioniq owners have already swapped tires and have experience to which reduced noise more...

 

In Europe, all tyres need to be tested for performance and have a label attached. There are online retailers that display this information per tyre on the website. Have a look here: https://www.mytyres.co.uk it might give you a clue as to the quietest tyres available.

 

Look closer, there should be insulation under the hood. A thin black sheet was installed in the 2017 and 2018 model years. You also have an engine cover, firewall insulation, and extra cost windshield with sound insulation.

 

Look closer, there should be insulation under the hood. A thin black sheet was installed in the 2017 and 2018 model years.

Nope. Can any 2019 owners confirm?

 

Just had the ioniq hybrid home for a Day to try it out before buying.
I love this car. So silent around town with only the electric engine running.
Design and All tech stuff is amazing.
I would had ordered the car asap.. BUT there is a noise from the tires or wind when running on the highway. I think I Will get very annoyed with it fast.
Actually my wife noticed it and asked if i could turn the ventilation down
Has anyone tried other tires maybe it can reduce noise.... ?

My Ioniq is loud at 60MPH with all the windows down. Those Michelin Green X are not the quietest tires.

 

Buy some door molding, I bought some more door molding and it did reduce wind noise. There's a youtube video about it for the tsla

 

Apparently Hyundai are already working on a sophisticated gizmo to reduce road noise by 50%. We will have to see if it extends to EVs which suffer from this the most due to their otherwise silent progress.

Hyundai says its new active cancelling system cuts road noise by half

Hyundai is claiming a "world first" with its "road noise active noise control system," which uses sound piped through a car's speakers to negate road surface noise as well as engine noise for a significantly quieter cabin.

newatlas.com

 

Wow, that sounds like a very promising idea, Hyundai.

 

Active noise reduction has been around for years in luxury cars. Also how those Bose headphones work.

 

Yes, nothing new about it.

 

In many luxury and sports car, they add louder fake noises in the cabin to make the car sounds more powerful instead of making them quieter. I know, I have one of such car.