2009 Audi S5 Steering Vibration't
June 29, 2009
We recently got our Audi S5 back from Audi's tech center to address its steering vibration issue that comes and goes depending on velocity and road surface. On Friday, I took the car home, and noticed some vibration still in it, but it was more of a "feel" thing rather than a "visual" thing. Additionally, I noticed the car would follow seams and grooves in the road. Well, it was almost fixed.
The next morning, before a 200-mile drive, I checked the oil, filled the fuel tank and, hey, why not check the tire pressures? Guess what? The the rears were spot-on but the fronts had been set 5.0 psi under spec. I know they were set by the tech center because they replaced both front tires.
Watch the video to see what setting the tires to the proper pressure (39.0 psi) did for the steering vibration. Excuse poor sound and the "brian phart" when I call it the Audi S4 at the beginning.
Chief Road Test Editor, Chris Walton @ 4,805 miles