Drive mode

[prj]

You can hear the "whine" if you accelerate in Sport/Sport Plus up to 75-85km/h (just before the upshift) and release the throttle (engine brake).

No, there is no whine whatsoever on cars without bearing issues.
You're probably talking about regen braking, that's a different sound.

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[Bognar67]

No, there is no whine whatsoever on cars without bearing issues.
You're probably talking about regen braking, that's a different sound.

I am talking about a situation when something is wrong, as a symptom.

 

[whitex]

No, there is no whine whatsoever on cars without bearing issues.

My "whine" sounds similar to an electrical switching/transformer tone, similar to what I hear outside when I charge but coming from the front electronics while charging, coming from rear motor at 50mph when driving. It also doesn't seem to change frequency with speed, it just comes and goes if I come to 50mph in first gear.

 

[prj]

My "whine" sounds similar to an electrical switching/transformer tone, similar to what I hear outside when I charge but coming from the front electronics while charging, coming from rear motor at 50mph when driving. It also doesn't seem to change frequency with speed, it just comes and goes if I come to 50mph in first gear.

If it changes / goes away when you go into 2nd then it's more than likely bearing noise.

That said, on my CT it was in first gear between 20-35 km/h and in 2nd gear between 50-70 km/h.

I think on the sedan there is a different speed - it depends on the wavelength and the distance between the front and rear glass in the car at which speed it's going to be most noticeable.

 

[chun]

Would be helpful if you would post a recording of the noise/whine you hear when switching.

Without it, people are just speculating. The electric motors have a whine, and their frequency changes slightly when changing gears. This has been the case in all the taycans I ever drove. I wouldn't classify it as much louder than normal or more annoying.

If it's something signinifantly louder, something could be wrong, as prj says.

 

[prj]

I am talking about a situation when something is wrong, as a symptom.

In case there is something wrong then you don't need to do anything with throttle to hear it.
Just the rotation speed of the input shaft on the gearbox is enough, and the noise is directly connected to the sound it is making.
That said, on the CT it was at 20-40km/h in first gear, and the sound is with multiples of course. So if you hear it at 75-80km/h you should also hear it at 20-40km/h.

 

[Bognar67]

Thanks. I can hear disturbing whining noise only at the highest speeds of the first gear and especially under engine break. it seems become quieter by the time but not sure.
Anyway I just extended my warranty by additional 3 yers and will sell the car before expires at the time when the 994 911 arrives somewhere 2027-28. I definitely turn back to ICE.

 

[prj]

Thanks. I can hear disturbing whining noise only at the highest speeds of the firs gear and especially under engine break. it seems become quieter by the time but not sure.
Anyway I just extended my warranty by additional 3 yers and will sell the car before expires at the time when the 994 911 arrives somewhere 2027-28. I definitely turning back to ICE.

I don't think it's the input shaft in that case. Input shaft makes loud whining noise even if you're driving in a straight line.

Here is how the noise sounds in 2nd gear, there's a good sound file on pff.de (48km/h - 64 km/h - 70 km/h), he is just driving in a straight line at constant speed:

My car wasn't quite this bad but same exact sound like that. If you just have sounds at transients that's the motors regenerating, and it's not a problem.

 

[Bognar67]

Thanks for this I really appreciate. I have no voice like this.

 

[prj]

Thanks for this I really appreciate. I have no voice like this.

Yes, most cars don't. Then in 1st gear it makes these noises at 25-35 km/h, and it's even louder.

It's a common fault unfortunately, but they fix that under Porsche Approved, because eventually the bearing disintegrates and the gearbox locks up. So it's not an "acoustic fault".

 

[Bognar67]

Yes, most cars don't. Then in 1st gear it makes these noises at 25-35 km/h, and it's even louder.

It's a common fault unfortunately, but they fix that under Porsche Approved, because eventually the bearing disintegrates and the gearbox locks up. So it's not an "acoustic fault".

After various electronic and software issues called 'common', here we are at a mechanical common issue. I hoped Porsche is good on the mechanical part of the Taycan at least.
These things are pushing our cars so deep into the depreciation hell.

I have another mechanical issue, that is disappeared now with the cold wether. When turning left fast or with big steering angle (under heavier load), there is a chattering voice (tak-tak-tak-tak-tak) on the front right side, maybe the axle-shaft of this side or part of it.
I read somewhere it is also a common issue.

 

[prj]

After various electronic and software issues called 'common', here we are at a mechanical common issue. I hoped Porsche is good on the mechanical part of the Taycan at least.
These things are pushing our cars so deep into the depreciation hell.

I have another mechanical issue, that is disappeared now with the cold wether. When turning left fast or with big steering angle (under heavier load), there is a chattering voice (tak-tak-tak-tak-tak) on the front right side, maybe the axle-shaft of this side or part of it.
I read somewhere it is also a common issue.

This fault for the gearbox is just the input shaft bearing. You can buy it from Porsche or also because they actually used a completely standard bearing you can buy it aftermarket.

Porsche's solution is to replace the gearbox because probably they just bill that to ZF. And it's not Porsche who made the mistake here but ZF. At least they didn't use a special custom made patented bearing, that nobody can produce or sell to drive the repair price to astronomical level like VAG did on the MEB platform and Kia/Hyundai did on the e-GMP.

But apart from dropping the rear axle being a big job the fix is actually quite simple. You just change the bearing, and that's it. So I would not say this is a huge problem. At least when the car is out of warranty then this can be fixed by almost any decent shop.

For the front on the older cars (pre-facelift) there was TSB, if you have a pre-facelift car then your dealer should already know what to do. On my CT they fixed the noise from front under Porsche Approved because it's a manufacturing defect and it affects almost all the Taycans. There is a fixed part.
Unless of course what you are describing is the tyre bouncing due to the suspension geometry.

 

[lisbonguy]

I drive normal mode, sport mode sometimes, it is too clunky for me

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