Mike Wheeler

Hi
so I was give set of tires for my 2011 audi a8L
Org tires are 265/40/20
Snows are 235/65/17
The chart comparison shows a difference of 2.5% of bigger diameter.
Will this damage my car?
Thanks

blazej01

MP4.2+6.0

No damage scenarios as long as all 4 tires the same size relative to each other, and have generally similar wear among the set. Since speedo is probably a bit optimistic on the stock tires/sizing, the difference may actually end up pretty close to true. If want to know, run one of the GPS apps on a smart phone and compare speedo read out as it stands now against the app/GPS computed speed. A guess is you will find speedo reads a MPH or so high at 60 MPH, and then you can compute what the 2.5% or so will do.

Given the diameter change, I am guessing they come with wheels (rims)? Be sure they are the "newer" Audi hub center size. If they came from a D2 or D3 A8 , or a C6 A6 or previous or something like that, the hub center won't work.