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Front suspension bottoming!

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Old Apr 1, 2020 | 11:09 PM
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Default Front suspension bottoming!

So... took a break from worrying about imminent unemployment with devastated investments and a potential early painful death and ran some errands in the Carrera!
The car still has less than 1000 miles and I've been compiling my "list" of issues for the dealer to take care of at some point. In particular I've had the front left suspension bottom with a BANG twice on bumps that surprised me they weren't absorbed. Today, the right front took a bump with a similar bang. These are frost heaved concrete or road seams that were basically unavoidable (I'm a pro at missing potholes). The only option would be to brake sharply before hitting them.
I feel other sports cars I've owned would have handled all of these bumps without bottoming so I'm surprised my 2020 992 exhibits this flaw.
Anyone else seeing this?



Last edited by WCE; Apr 1, 2020 at 11:14 PM. Reason: poor spelling!
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Old Apr 1, 2020 | 11:18 PM
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Originally Posted by WCE
So... took a break from worrying about imminent unemployment with devastated investments and a potential early painful death and ran some errands in the Carrera!
The car still has less than 1000 miles and I've been compiling my "list" of issues for the dealer to take care of at some point. In particular I've had the front left suspension bottom with a BANG twice on bumps that surprised me they weren't absorbed. Today, the right front took a bump with a similar bang. These are frost heaved concrete or road seams that were basically unavoidable (I'm a pro at missing potholes). The only option would be to brake sharply before hitting them.
I feel other sports cars I've owned would have handled all of these bumps without bottoming so I'm surprised my 2020 992 exhibits this flaw.
Anyone else seeing this?
Maybe a long shot but any chance the shipping suspension blocks weren’t removed? I generally think of a 911 as relatively compliant amongst sports cars.
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Old Apr 1, 2020 | 11:22 PM
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A bang, like metal against metal sound? Curious if your vehicle has the front axle lift option.
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Old Apr 1, 2020 | 11:31 PM
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Originally Posted by Hp12c
Maybe a long shot but any chance the shipping suspension blocks weren’t removed?
Shipping blocks raise the car for easier transport? The car appears the correct height and nothing I can see in the springs. No front end lift - the bang seems to be the suspension bottoming.
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Old Apr 1, 2020 | 11:34 PM
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It really sounds like the shipping blocks weren’t removed during the PDI.
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Old Apr 2, 2020 | 12:13 AM
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Originally Posted by WCE
So... took a break from worrying about imminent unemployment with devastated investments and a potential early painful death and ran some errands in the Carrera!
The car still has less than 1000 miles and I've been compiling my "list" of issues for the dealer to take care of at some point. In particular I've had the front left suspension bottom with a BANG twice on bumps that surprised me they weren't absorbed. Today, the right front took a bump with a similar bang. These are frost heaved concrete or road seams that were basically unavoidable (I'm a pro at missing potholes). The only option would be to brake sharply before hitting them.
I feel other sports cars I've owned would have handled all of these bumps without bottoming so I'm surprised my 2020 992 exhibits this flaw.
Anyone else seeing this?
YES! I've had it happen to me once on a particular road near my house - it's very odd, the 'bump' in the road is quite small by comparison to other bumps in which the car sails over without an issue. I wouldn't even call it a bump, it's more of an undulation. Compared to other rough roads it's not even severe. The car can handle larger bumps such as speedbumps, etc without issues. It was an almighty BANG, ​​​​​​ the car definitely hit the bump stops. Something I never experienced in my 991.2. I actually pulled over and went back to look at the road to figure out what I had hit and couldn't work it out. I'm used to driving much lower, harder sprung cars then a 911.

A few days later, I was driving down the same street, albeit it I went much slower this time as I was cautious/curious and while the bang wasn't nearly as significant, the car still reacted to the undulation in the road in an unusual way - quite sure had I of been going faster I would of had the same BANG as previously. And when I say 'faster' I'm not doing ridiculous speeds, especially compared to the size of the undulation.

It's as if the particular gradient of this particular undulation just throws off the suspension somehow that other comparable, or larger/scarier looking bumps do not.

I do have front axle lift, but I had it in the 991.2 and never once hit the bump stops or had such a horrible BANG occur. I'm sure Porsche wouldn't design the FAX system with this type of issue. I don't have SPASM so I'm not even sitting 10mm lower, I'm on stock PASM.

I've stuck my head under the front fenders and can't spot shipping blocks, I assume they'd stick out and be obvious to the eye?
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Old Apr 2, 2020 | 01:34 AM
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I've had the same thing happen to me a couple of times going over bumps in the road that I would have thought would be easily absorbed by a Porsche suspension (non SPASM). Definitely sounds and feels like the suspension is bottoming out--BANG is a good description.
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Old Apr 2, 2020 | 08:15 AM
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Shipping (orange) blocks:


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Old Apr 2, 2020 | 09:07 AM
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Originally Posted by LexVan
Shipping (orange) blocks:

Thank you. Certainly not present in my car - kinda wish it was that simple though
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Old Apr 2, 2020 | 09:08 AM
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Originally Posted by WCE
So... took a break from worrying about imminent unemployment with devastated investments and a potential early painful death and ran some errands in the Carrera!
The car still has less than 1000 miles and I've been compiling my "list" of issues for the dealer to take care of at some point. In particular I've had the front left suspension bottom with a BANG twice on bumps that surprised me they weren't absorbed. Today, the right front took a bump with a similar bang. These are frost heaved concrete or road seams that were basically unavoidable (I'm a pro at missing potholes). The only option would be to brake sharply before hitting them.
I feel other sports cars I've owned would have handled all of these bumps without bottoming so I'm surprised my 2020 992 exhibits this flaw.
Anyone else seeing this?

PASM or SPASM?
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Old Apr 2, 2020 | 09:09 AM
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Originally Posted by HouTexCarreraS
I've had the same thing happen to me a couple of times going over bumps in the road that I would have thought would be easily absorbed by a Porsche suspension (non SPASM). Definitely sounds and feels like the suspension is bottoming out--BANG is a good description.
That makes 3 of us.

Do you have front axle lift?
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Old Apr 2, 2020 | 11:29 AM
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Originally Posted by Slingray
That makes 3 of us.

Do you have front axle lift?
No FAL.
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Old Apr 2, 2020 | 04:50 PM
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Definitely no shipping blocks like that image in my springs. (do they even always use them - looks like a lot of trouble?)
My car is an (unexpectedly) early delivery "base" Carrera, so it has the PASM suspension which judging from the firmness HAS to be the same exact spring rate now as the S.
I'll definitely mention it to the dealer if I ever get there, just another area of mild disappointment with this highly praised 992 version.
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Old Apr 2, 2020 | 04:54 PM
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Originally Posted by WCE
Definitely no shipping blocks like that image in my springs. (do they even always use them - looks like a lot of trouble?)
My car is an (unexpectedly) early delivery "base" Carrera, so it has the PASM suspension which judging from the firmness HAS to be the same exact spring rate now as the S.
I'll definitely mention it to the dealer if I ever get there, just another area of mild disappointment with this highly praised 992 version.
Yes they do. Here's what they looked like on the 991 version:



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Old Jun 23, 2021 | 03:03 PM
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So driving around one of the wealthiest pockets in the world, the SF Bay Area peninsula (aka Silicon Valley) ..where the tax revenues are probably the highest in the world, and the roads worse than many 3rd world nations... I've now twice, once on the 101 near Redwood City, and once on El Camino in San Mateo heard a loud bang after hitting one of our famous road bumps.. these are not pot holes, just badly aligned road work areas... where a new piece of pavement meets an old.. I'm pretty sure the shipping blocks are gone. I inspect the underside of the car, and there is no damage, so I assume it's suspension... feels like front.. Should I get the car inspected? should I be worried? or is this something the car can handle?

Last edited by 992Sam; Jun 23, 2021 at 03:17 PM.
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