Tapping or Creaking Noise when coasting at low speed

I probably waited about 3-5 days once I heard it. Mostly because I hadn't yet found out it's a common issue. I would bring it in and let them try to find it, and make sure to mention above VESS speeds but below about 50 MPH since tire noise starts to drown it out when you go faster. Best of luck!

 

I changed my vote. While I did hear the noise for about 6000 to 7000 miles, it disappeared around 10,000 miles and we are now nearing 15,000 without it returning. Never noticed anything beyond the slight tapping noise and the performance was not affected in any way.

Until such a time I see any issue beyond a noise that I actively have to try to hear, I will just enjoy driving my Niro and know that I still have plenty of miles left in the warranty if it does decide to be an actual problem.

 

I had this same situation occur. I heard it early, it disappeared, and then it re-appeared much worse than before (but still not incredibly audible).

 

So I just got my car back from Kia after almost 3 months. I think it also has the motor noise issue. I have attached a sound file I wanted to some feedback before I report it to Kia. Please let me know if you think the sound is the clicking sound that others are reporting. I recorded this around 5 MPH.

 

That seems to be at a well-advanced stage.

 

Yeah, that's the sound! Hopefully you get your 711 motor quick~!

 

That’s definitely it. Can you tell me where
you placed the recorder to get such good audio of it? Will try and get a clip of mine this week.

 

It was on the passenger floor board. I did up the volume of the recording with audio editing app. I think mine is just that loud.

 

This might a semantics issue on how "common" is defined, but I do not think of this as a common issue. Most people have not had this problem. I will be surprised to hear if it occurs in 10% of the vehicles, and unsurprised if it is as low as 2% (based entirely on my experiences of how few people have this complaint relative to the number that does not).

The modest frequency of this problem (still way too high for a mass produced item) is why I think it is likely a vehicle assembly or motor production quality control issue rather than something inherently wrong with the motor design. It is possible some mechanical aspect of how the motor mates to the reduction gear could mean the assembly needs to be done to a tighter tolerance than desirable so some end up having this problem.

 

While I agree that it could be around the percentages you spoke. There are things that lead me to infer that it could be higher. One is that I would have not noticed the noise had I not heard some other louder noise and turned of the radio and other things to listen. Also once at any significant speed the noise can be similar to an ICE noise. Which first time EV drivers aren't going to register as not supposed to be there. I'm still hearing the initial noise, and I think it is made by the vess at all speeds, because it doesn't make that noise in reverse. The simple fact of this not being my first EV let me know that these noises were not the usual. Some people do not know how an EV is supposed to sound, so they'll think nothing of it.

 

I just started hearing a motor noise. I'm also hearing a "whoop whoop" sound at slow speed, less than 15 MPH.

That sound shows up from about 1:09 through about 1:30 in the recording. I recorded from my phone placed on the left side of the front passenger floorboard.

 

Even if it is 10 or 15% , my conclusion of basically a quality control issue rather than a design flaw does not change (beyond how those two play together, where a particular design might require assembly at difficult to achieve tolerances). The caveat is maybe EVERY motor will do this at some point. I know there are a few people withs 10s of k of miles who have not , but what about 50k? 100k?

I had a whoop whoop noise for a little while. I think it had to do with crap building up on the rarely used rear drums...maybe rust? It stopped after using the brakes beyond the level of regen a few times. I feel like I can hear your VESS. What speed were you going when you made recording?

 

I was going about 10 mph when I recorded the whoop whoop sound. I rarely hear it going more than 20 mph. I originally thought it was a an axle boot rubbing against the drive shaft at the front or something like that. I'm pretty certain it's coming from the vehicle's front end. The technician told me there didn't appear to be any wear or tear so it's still a mystery to me.