Steering wheel vibration

[smohr33]

I had this issue and got a new front motor approved. It’s was a huge job and took almost 8 weeks to diagnose and repair.

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[Ztarman]

Hi, My own 4S vibration was in all modes which was why I could isolate the issue to the front motor (Sport mode forces the rear motor into the lower gear). The vibration was at 60 Hz ( 1 cycle ever second) and evident on throttle, neuntral and off throttle, but only when driving in a straight line ( so not when cornering as the LH & RH Wheels will rotate at different speeds). All the measurements we took on my car indicated that there was an out-of-balance force in the front motor which was exciting a 60hz resonating mode in the steering column. Porsche UK sent out one of their technical reps to assess the vehicle and he approved the motor replacement after driving the car and confirming the issue was not normal. Good luck with getting this issue sorted!

Hi, I have an intermittent vibration which comes and goes but is audible by the passenger and I can feel it in the steering wheel, is this what you experienced?

 

[SJGG]

Hi, I have an intermittent vibration which comes and goes but is audible by the passenger and I can feel it in the steering wheel, is this what you experienced?

Maybe. The vibration was very consistent at 40 mph on a straight road on a neutral throttle. Accelerate / brake or turn slightly and the vibration disappeared. It did not come & go if I held the right conditions. As to whether your passenger can hear / feel the issue - it is totally dependant on the passenger. One person couldn't hear the issue whilst another could (although admittedly the one who could hear it was an NVH Engineer for a luxury car manfacturer so its his job to hear these things!)

 

[Ztarman]

I just got he car back from the garage after the AC had failed, it needed to be re-gased and now needs a new air quality sensor. After that it needs the front brakes replaced as they sqeal badly, and are disturbingly poor at stopping at low speed. Should be a week to get the parts. The garage are going to see if fixing the brakes will solve the vibration from the steering wheel. The car is 6 months old and had the red brick of death at week 2… the only bright spot is the garage are repairing under warranty and providing a courtesy car. They now seem genuinely helpful, I think they feel sorry for me.

 

[rs38]

I experience tiny vibration on the steering wheel as well.
it occurs only when coasting and faster than 130-140 kph. there is no noise. Seems to be independent from drive mode and height. And I would guess the vibration frequency is higher than the wheel frequency. Will try to measure it.

 

[Jamesfawcett]

Hi all, I've been Googling this issue and arrived on this thread, I have the exact same symptoms. @davidh looking at your posts above, I might actually have your old car?

I am in West Yorkshire too, and it's a Taycan Turbo S. I bought it without test driving so didn't know about the vibrations until I drove home. Love it the car, except for this vibration/resistance feeling in the steering and the grinding noise it makes, I have too much mechanical sympathy to ignore it.

It's being picked up by Porsche York on 17th to have it looked at, I took the technician out and he said that it's not normal. They've been great with all the issues I've had with the car so far.

Edit - might not be same car actually, garage just said different names. Just a coincidence. Will post the outcome!

 

[davidh]

Hi all, I've been Googling this issue and arrived on this thread, I have the exact same symptoms. @davidh looking at your posts above, I might actually have your old car?

I am in West Yorkshire too, and it's a Taycan Turbo S. I bought it without test driving so didn't know about the vibrations until I drove home. Love it the car, except for this vibration/resistance feeling in the steering and the grinding noise it makes, I have too much mechanical sympathy to ignore it.

It's being picked up by Porsche York on 17th to have it looked at, I took the technician out and he said that it's not normal. They've been great with all the issues I've had with the car so far.

Edit - might not be same car actually, garage just said different names. Just a coincidence. Will post the outcome!
[/QUOTE My previous car was a Dolomite silver TS, so not the same.
I don't know whether the vibrations disappeared or I just got used to it, but I've not really noticed it in recent months.
However, I've now changed that car for a new Turbo CT and within 10 minutes of driving the new car, I noticed the same vibrations even though I was not trying to detect it. It's most noticeable at about 25mph.
It's not bad, but having worked for 33 years in the Engineering dept. for several OEMs, I know that it would not normally be acceptable from an nvh point of few. However, if it's too expensive to design out or fixing it would compromise another core attribute, then these things may be allowed through.
I haven't discussed this with my dealer as they are very defensive of the brand and will say NFF. Would be interested to know what Porsche York find .

 

[Jamesfawcett]

Thanks @davidh

Mine's still in at the moment they're still investigating. The technician suspected maybe a damper or something on the motor but they're still checking. Mine is also most noticeable around the 25mph mark too. When slightly turning the wheel it's also more prominent rather than in a dead straight line. I'm keen to get mine fixed because it's out of warranty in a few months and It's needed quite a few things replacing.

 

[Jamesfawcett]

Just an update - car is booked in January and ticket raised. The vibration is louder now at all speeds. Very clear now that it's from the front end.

I had the front fans replaced by York OPC recently. they were seized and binding, we were hoping that would resolve the noise/vibrations but it's still there. It's looking like the front motor/bearing. I went to a different dealership and the senior tech said he's seen one before with the same symptoms, and the new motor solved it. It drives me nuts, glad to be getting it resolved as it's been a big unknown for quite some time.

 

[nicklas_enqvist]

@Jamesfawcett
did you solve it? I have same problem with my CT4S -2023

 

[Jamesfawcett]

I don’t have my car back yet, it’s been in 6 weeks. It was meant to be today but I get it back Monday.

They said they’ve fixed it with a software update. I’ve googled it and I’ve found similar cases with E-Tron but not Taycan. Something to do with disconnecting the front motor under a certain speed.

Mines also had two new heater solenoids, an ioniser replaced which had a permanent fault, rear spoiler replaced and a chargeport replaced too whilst it’s been there.

Mines also had a DME software update too because the DME had a permanent fault

Looking forward to getting it back, I just really hope it’s cured the vibration issue.

…glad I renewed the warranty!

 

[Jamesfawcett]

I got my car back, Porsche instructed them to do some software updates to my DME which have been done, but the vibration is still there. It's possibly more muted now, but it's still there.

I can find find similar cases on the e-tron forums. On a positive note, my throttle response is much nicer now and the car no longer lurches forwards in low speed such as parking in the garage.

I'm at a bit of a loss of what to do next. It takes my enjoyment out of driving the car, the steering intermittently buzzing on and off whilst driving. I have a lot of mechanical sympathy, and it pains me that it's not something I can fix myself. I feel a bit like the software update is just a patch to hide the problem.

Please see this thread here on the e-tron forums, similar symptoms:
https://www.e-tronforum.com/threads/vibration-38-43-mph.3163/page-2

I'm starting to think it might just be a characteristic of the car, but that doesn't make sense because other people earlier in this thread had the front motor replaced which cured it...

 

[Jamesfawcett]

Just an update to this. Took the car on a long drive down to London and back - I just can't ignore the grinding/vibration - I've too much mechanical sympathy it's awful. If I were test driving a car to buy, and it did what my car does, I wouldn't buy it. I'm going to try again to get it looked at again.

I'm also tempted to ask for a test drive in another Taycan with a front motor to see if it's the same just to compare. It really is taking my enjoyment out of the car. It wouldn't be so bad if it was a constant vibration and noise, but it cycles on and off constantly, buzzing on and off through the steering wheel so you can't ignore it.

 

[nicklas_enqvist]

Exactly,
It cycles on and off constantly, buzzing on and off through the steering wheel.

I will check this as next thing and see if it helps.

https://static.nhtsa.gov/odi/tsbs/2023/MC-10240405-0001.pdf

 

[Jamesfawcett]

I’ve seen a similar TSB for coated brakes but I have PCCB carbon ceramics. I sent the document to my service manager who discussed it with the tech but it didn’t include my car. The suggested fix was similar as your link, added dampeners on the steering column.

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