Front suspension bottoming!
Pro
Joined: Dec 2019
Posts: 654
Likes: 422
From: Houston, Texas
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?
Intermediate
Joined: Dec 2020
Posts: 45
Likes: 28
From: Colorado
My car is doing the same thing. I have a base C2. Glad I came by this thread. I thought something was really wrong with the front suspension. I drove the same exact roads with a 718 Boxster GTS and no banging or bottoming out.
Thread Starter
User
Joined: May 2003
Posts: 1,042
Likes: 225
OP checking in!
7000 miles and I can still bottom out the front suspension - I've now identified the sections of my local roadways and learned to avoid them. My DD sport suspended Audi glides right over these spots! Haven't had a car that did this since a 3 series BMW with early runflats which were notorious for this.
7000 miles and I can still bottom out the front suspension - I've now identified the sections of my local roadways and learned to avoid them. My DD sport suspended Audi glides right over these spots! Haven't had a car that did this since a 3 series BMW with early runflats which were notorious for this.
Rennlist Member
Joined: Oct 2004
Posts: 1,873
Likes: 1,244
From: Lakewood Ranch, FL
OP checking in!
7000 miles and I can still bottom out the front suspension - I've now identified the sections of my local roadways and learned to avoid them. My DD sport suspended Audi glides right over these spots! Haven't had a car that did this since a 3 series BMW with early runflats which were notorious for this.
7000 miles and I can still bottom out the front suspension - I've now identified the sections of my local roadways and learned to avoid them. My DD sport suspended Audi glides right over these spots! Haven't had a car that did this since a 3 series BMW with early runflats which were notorious for this.
Rennlist Member
Joined: Mar 2017
Posts: 1,144
Likes: 351
From: Seattle
I found a couple places where only at a particular speed I'd get a bang from the suspension. It was the same route to the office everyday, so I became quite aware of the shape of the road surface. There were a series of small ups and downs in the road right before a larger bump. I came to believe that it was software adjusting the suspension dynamically (this particular 911 had PDCC contributing, too) and the control systems would get out of phase with the next bump in the road. If I went a little slower or even a little faster I'd avoid the bang, but between 20-25 mph it would bang every time. Now, I just tend to just go slow on bumpy roads.