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Just discovered another problem with my cs with 19" wheels. While I was making a u-turn today at maybe 20 to 25 mph (wasn't really looking), the front end of the car shakes and rattles. It sounded like the tire is hitting part of the car. I tried another u-turn at similar speed later, the same thing happened. It does not sound like typical 'cosmetic' noise problem. I am not a car guy, should I be concerned??
Are they after market 19's maybe they have a different offset that stock.
Is is possible for you to get down and take a look under the car. I would say check the inside sidewalls of both front tires and see if there are marks from rubbing. Then if you see marks on the tires find out where on the car it is hitting.
Also, is the car lowered? It may be hitting the fender lips.
Edit... ok I couldn't find it in the FAQ, though supposedly it used to be in there, but it's been reported before in several threads and it is normal...
Could it do this with certain alignments? Each front wheel wanting to take a different direction, so one wheel has to break traction, in a stuttering fashion? I've had that happen in other cars.
You could do what I do on tight turns - turn off PSM and kick the rear out...makes it easy to get going in the opposite directions, and is fun albeit I advise you practice in an empty parking lot first.
PSM - Porsche Stability Management
While it can’t overcome the laws of physics, the revolutionary Porsche Stability Management (PSM) system does lend an added degree of balance and control to the Cayman’s mid-engine driving dynamics, inspiring surefooted confidence in corners and extreme situations.
A standard feature on the Cayman and Cayman S, PSM continuously monitors steering input, road speed, yaw velocity and lateral acceleration to calculate the actual direction of travel. If the car begins to steer off line, PSM instantly intervenes with precision brake inputs on individual wheels to help bring the car back onto the driver’s intended path.
If braking alone isn’t enough to correct the vehicle’s cornering line, PSM then calls on the Cayman’s engine management system, adjusting engine output as needed to help stabilize handling. PSM can also compensate in an instant for mid-corner changes in load resulting from deceleration or braking. When Sport mode is selected with the optional Sport Chrono Package, PSM’s threshold for intervention is raised, allowing for greater driver involvement. If you prefer driving without automatic PSM assistance, the system can be set to standby at any time. In this case, it will only intervene under heavy braking, where both front wheels exceed the ABS threshold.
For all of its technical ability, PSM goes virtually unnoticed in everyday driving situations, preserving the Cayman’s natural agility.
I have Carrera S wheels, and I haven't had that problem. You may wish to take it to the dealer.
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I have the 19 Classics and have the same noise. Only happens under sharp left/U-Turns.
I took it to the dealer & drove the car for the tech. He heard the sound and then put it on a lift and found nothing wrong. He then took another CS out and it made the same sound, so they said it was normal.
It is a rattle or wheel rubbing on suspension/wheel well sound.
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2006 CS Cobalt Blue
2008 xB
2005 Tacoma
Perfectly normal behavior. Your car is understeering due to too much steering angle and/or too much speed for constant grip so the fronts are skipping a bit. If you'll add some more speed you can get the front tires to slide smoothly until they're abruptly stopped by the curb
Either reduce steering input and/or speed. Think friction circle.
yea my problem was due to lack of traction caused by lack of rubber (all stock 19's are low profiles) and cold temperature. 25 mph u-turn is moving pretty good and i suspect you are losing traction and the car is skipping
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-06 Cayman S Guards Red
Thank you to the old people who put no miles on their porsches and trade them in.
Linear Mode
