Unidentified vibration from transmission

[David Baldwino]

TCT4S 24000m ( Sept '21 ) Just struggling with this one - I have a slight vibration creating a low volume deep bass inside the car when accelerating hard in normal / Sport / Sport +
It appeared a 2 months ago when on 20in Winters which have just been swapped for newly balanced 21in alloy/ tyre combo and the situation is identical if not slightly more but that rules out wheels or tyres I guess.
Not taken her in to Porsche as yet.
Has anyone experienced similar or heard of this in threads?

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[hifi239]

I occasionally have this from my 22 RWD. I posted here. It is intermittent. Sometimes I can accelerate hard uphill on the highway and it is smooth as silk. But sometimes I get this low rumble I can feel. Same for two different tire sets (winter/summer). For a different owner, their tech said it was normal. See that thread. We'd like to hear what your dealer says and if they feel it.

 

[David Baldwino]

Very interesting, sounds similar, please post what the service manager has to say. Thanks for the info. ?

 

[hifi239]

I have heard what first gear sounds like in Sport before it shifts ~60MPH and it isn't that. For me it happens in Normal mode pulling hard from 50 to 70, which is second gear (I believe). Kind of like a low vibe/growl lugging sound. Different things going on.

 

[David Baldwino]

Hi, Did you resolve anything with the service manager?

 

[David Baldwino]

Thanks for that. Hardly inspirational from Porsche ! So, I thought I would go down the road of precise wheel balancing and maybe new tyres etc then I thought fook it, I’ll follow Range Rover dealer comment of “bring it back when it gets really loud ….. so I’ve just driven to Spain with wife, dog, luggage for 4 weeks, roof box and all that you need to kit out a new kitchen and 5 bedrooms. Happy to say the 1250 mile trip was easy and faultless both Taycan and Ionity charging power. During the trip I did hear the rumble / faint patter noise on a few lower speed, 50-60 mpg periods. I will buy the 3 yr reasonably priced warranty in Sept and keep rolling until it does a Range Rover and gets really loud / blows up . …. Like my Vogue, currently having a new front diff under warranty ….boy was that loud when I took it in !! ?

 

[David Baldwino]

Best answer so far ? So as I said, loaded her with crockery, tools, luggage for 4 weeks incl porker roof box full of wife’s shizzel for a villa…then hammered it to Spain. Sometimes I heard it, 99% of the time I didn’t. Heading back on Sunday with the intention of changing my almost 3 year old totally knackered Standard fit 21s ( I run porsche 20in winters ) for something a little more sexy and possibly softer/quieter.?? ….. either way, for the record once more, absolutely awesome awesome car, period.

 

[Tooney]

Maybe not applicable, but there are a number of TSBs about noise.
Open @rs38 's TSB list at https://ti-list.azurewebsites.net/ and search for noise.

 

[rs38]

actually when I search for "vibra*" I can only find a A/C related doc.
I can remember there was sth. that was correlated to the steering column?

 

[Tooney]

actually when I search for "vibra*" I can only find a A/C related doc.
I can remember there was sth. that was correlated to the steering column?

Are you thinking of this one? https://static.nhtsa.gov/odi/tsbs/2022/MC-10213069-0001.pdf

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