BugeyeRX

I'm going to the dealer on Friday and will see what they can do. But this is annoying.

snagitseven

Almost sounds like the variable assist is not working smoothly for some reason. It should transition smoothly in effort difference as the speed changes..

BasicSlvr

Very interested in your dealer's recommendations. Been experiencing the same issue with my A7. Dealer told me to run at the highest tire load recommendations per the door label. I was running at the "normal" load ratings per the manual. The psi fix did not address the issue. Finally, I had a service tech drive the car on the highway. He noticed the steering was twitchy at high speeds, very difficult to keep on center. He re-aligned the car which seemed to fix the problem. But, I still notice the twitchiness at highway speeds running 38 / 41 psi per the door label. Keep in mind that the steering update only addresses an erroneous error indicator as noted earlier in this thread. Any info would be helpful.

snagitseven

Now that the alignment has seemed to correct most of the problem, try reducing the tire pressure as recommended in the manual for normal loads. Max pressure in the fronts will result in increased steering sensitivity which could contribute to the "twitchiness". Think about how a tire footprint is decreased with increased tire pressure and vice versa. i.e.: higher tire pressure = smaller footprint = less rubber on the road = less resistance to steering input (or variations in road condition).

BasicSlvr

Agreed, the theory makes rational sense. I reverted to the lower "normal" pressures soon after the alignment as a test. But, the twitchiness was still present.

VectorA7

2013 A7 and same problems with steering. Sometimes feels like it is being pulled slightly, and it is uneven when changing lanes - mushy to the right, jerky to the left. Dealer has no idea, says it is just getting used to the new electro-mechanical steering system.

Anyone else have the Goodyear Eagles? Usually run Michelins, wonder if it's just a bad set of rubber.

fEArmE

I dont think rubber is the issue here because the jerking will go away after 5 minutes of driving.

BugeyeRX

I've noticed this issue soon after I got the car. Both me and my wife have felt this, so at least I know it's not just me being picky It does not seem to happen all the time but is frequent enough to be annoying. As stated, it does go away once the you have driven awhile. It is not speed dependent, I have went straight on the highway and just went down town and felt the same thing. The dealer says they cannot recreate the problem and everything is at spec. I've rotated, inflated, deflated the tires, nothing. I guess it is just an annoying trait of the car. I'll keep complaining and see if anything ever becomes of this.

BugeyeRX

One other thing I noticed if you turn the car off and start it again the issue goes away. Strange.

VectorA7

Have not seen that rebooting the car (turning it on and off) has made a difference. But if it goes away after driving a bit, then it actually does sound like it could be the tires, which change their characteristics a bit after they warm up.

Does everyone with the problem have Goodyear Eagle LS-2's?