Faint high pitch sound (like a vacuum cleaner or jet engine whine) when accelerating and regen braking (front right)

[Cogs79]

Hi,

I just noticed a new sound on my 1 year old Macan 4 that wasn't there before. When accelerating, there is the usual lower frequency hum. But under slightly faster acceleration (not even close to aggressive) I now notice a high pitch, scratchy whine. It is not loud, but more of a faint, scratchy jet-engine like sound on top of the regular electric motor sound. It increases in pitch with speed. It also makes the sound when regen-braking. It sounds like it is coming from the front right of the car. I thought it was the accumulation of snow in the tire fender well just rubbing against the tire but I cleaned that out, and the sound is still there. It's a new sound and just started happening a couple of days ago. I doubt the bearings are already going after 6100km! Anyone hear something similar? Could it be that the front electric motor is finally being used more given the snowy/slippery conditions? (Doubt it since I drove this car new in the snow last year).

Cogs79

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[chaz]

I get a higher pitch sound under acceleration, but I think it’s only when Sport Sound is on. I felt that I only started noticing it about two months ago.

 

[Cogs79]

Thanks for the response! I forgot to mention that my 4 does not have the sport sound option. I will check in the menus to see if it somehow was added/got activated just in case.

 

[chaz]

It's one of those things that's hard to verify, because I'm not sure if it's always been there and I just started noticing it or it's new

 

[ColdCase]

Some tires get noisier when worn a bit. Most if not all of my strange EV car noises have been tire related because EVs are so quiet you will notice noise that are under the ambient ICE car level..

Alignment being a little off is usually the second choice.

Swapping wheels/tires to test is what most dealers would do to address this, unless its a well known problem.

 

[krissrock]

a video with the sound might be best...

 

[sor]

I only hear the motors in the Macan when the sport sound is off. They are very quiet but possible to hear when they run at a certain RPM. Maybe it isn’t the same as what OP is experiencing but it is the sound I’ve heard in every EV and PHEV I’ve owned - it was most noticeable in our Volvo XC90 plug in hybrid when sitting in the back. Just a very faint whine at certain speeds, that you don’t hear if anything else is making sound (stereo, etc). I don’t think I’d be able to catch it on a recording unless I had a mic right on the chassis or something.

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