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You would think there would be more people here reporting this same problem (since almost everyone gets sports chrono), are they just less sensitive to hearing it?
You would think there would be more people here reporting this same problem (since almost everyone gets sports chrono), are they just less sensitive to hearing it?
That's a very fair question. I think a great many people just don't take the time to report it.
In addition, until this warning came up implicating the PADM, never having personally heard the sound before, I wasn't sure that is what it was.
In other words many people are likely hearing the noise but not either ascribing it to PADM,
or even thinking it's normal, as some have apparently been told by their dealers.
We have passed 50,000 miles now. 0-60 in 3.5 seconds on my C2 Pulls 2G on the corners. Thats quick enough for me.
Had a great drive yesterday on country roads using her for work, she absolutely rips and sounds gorgeous.
No weak hydraulic engine mounts, no snake oil Sports Chrono, no bottom scraping lowered suspension, no fragile paper thin "light weight glass", no heavy 18 way seats, no rear rear wheel steer, no mechanical LSD, no £15k ceramic brakes.
I paid £84,000 for it new, never had a problem with the car, no wuckin furries!
Happy Days. I have decided to keep it until she falls apart.
Well car is back at the dealer…at least not for the engine mounts. Was backing out of the garage in the family truckster headed to dinner last night and noticed a substantial pool of oil under the car. Clearly I was less than pleased and had the car at the dealer first thing this morning. Was just advised that the whole backside of the oil pan had evidence of a leak. So the whole pan etc is being replaced. I’m not a mechanic, but I wouldn’t think the pan would have been touched when the motor was dropped for the mounts. If it was then it’s a bad install (maybe it was sitting wrong on the engine stand and put pressure on it) otherwise I’m just really unlucky. Car only has 1,400 miles on it and is my first p-car, so not starting off on the right foot.
Last edited by TexasIowan; 07-27-2023 at 08:19 PM.
Pretty sure this is the sounds I'm hearing on my 2023 C2S I picked up today. I noticed the sound immediately, didn't even make it out of the dealership parking lot. Based on this thread (and several others), it doesn't appear there has been a lot of success in resolving the issue, even after replacement, so I'm tempted to just live with it assuming it's only an inconvenience and not actually damaging something.
Along those lines, does anyone know (or able to clarify in layman's terms) what is happening/failing to cause the sound? The TSB mentioned above identifies the cause as “The exhaustion of the maximum damping travel of the motor bearings, resulting in contact with decoupled plate of the motor bearings” . Is that just a fancy way of saying the mount is bottoming out?
Earl D., I have read on Rennlist, but cannot independently verify, that the dealer can use a code
to delete the PADM, and use regular rubber motor mounts that are used in the base Carreras
that are ordered without sport chrono. They are relatively inexpensive, about $260 each.
I just had new magnetorheological engine mounts installed on my Carrera with only 530 miles,
the noise at low RPM was still there. Sure enough, I only drove 7 miles before the PADM error message
stating service is required reappeared.
I turned around and returned the car to the dealership.
I'm checking whether what they installed was the most current version of the active motor mounts.
If they can't resolve the issue satisfactorily I may go for the plain rubber mounts.
At least that way out of warranty they don't have to be replaced repeatedly.
For many, they are durable and trouble-free.
I drive mostly canyons in sport mode which could be why I might have more of a problem.
Just odd that Porsche can't figure out what's essentially a small Magnetic Ride suspension piece. GM has been doing it for years and while they wear out earlier @100K then don't fail in the first 500-10000 miles. Not suggesting GM>Porsche from an engineering standpoint, but am suggesting this is pretty simple technology these days that Porsche can't seem to get right. I wonder if it's a design problem or a vendor construction issue?
NDM, I have asked myself the same thing about Delco's magnetorheologic product ...repeatedly.
Maybe it has something to do with being made in England.
I hate to think that it's engineered for repeated replacement post warranty for profit a la BMW. I don'tthink that's the case. It has only crossed my mind.
I've never heard a satisfactory explanation. Do any engineers out there have one?
It seems like the weight of the engine is more than the mount design can handle before bottoming out.
I'm thinking that it's fine who drive the car like a GT but not for those who drive it like a sports car. But ironically, dynamic mounts are meant for performance driving.
FWIW, the part number for the PADM "hydro mount" as it is called, that was installed last week
was the most current one, and the one specified in the most recent TSB for this issue.
Therefore, since the warning is still occurring, a new PADM control unit is being shipped from Germany.
Well boys I got some bad news…the rattle is starting to rear its head again after about 800 (car has 1700 miles on it now) miles post replacement. Just noticed it faintly yesterday and it seems a little more pronounced today. Very frustrated to say the least.
Outside of having it redone again with the B versions of the mounts, I’m almost thinking to live with it for a little bit to see if a better solution is derived (being optimistic).
As a side note, I was catching up on this thread and I noticed murdog’s comments (post 90) on the topic and that he also had an oil pan leak. So add that to the list of recurring failures given my upper and lower oil pans were just replaced due to a substantial leak.
07-20-2023, 10:47 AM
