sports dif
 

i bought a 2011 b8 s4 sight unseen except for internet pictures..i trying to find out if it has the sports differential..i looked up the build sheet and it says "locking front and rear differential"..is that it?

Don't think so Do you have a link to the pictures? Look for buttons that say Comfort/Auto/Dynamic /Individual/ on either the console (if the car doesn't have Nav) or above the left HVAC knob

Not sure what build sheet that is, but the B8 has open front and rear differentials. Even the sport differential is an open differential, it just has the ability to force more torque to the outer wheel. The latest generation center differentials are self-locking. If the car has the Nav package, then the surest way of telling is if you pull up the Individual mode configuration and see if the sport differential is listed. The Drive Select buttons on the dash are not a sure way of telling as they are also there if the car has the adaptive suspension or the driver assistance package. However, if you don't have the Drive Select buttons, then you don't have the sport differential for sure. Another way is looking under the car. The sport diff has electronics on the side and an electric motor. which you can tell from the housing. If all this fails, the easiest way is to call Audi and give them the VIN. They can tell you on the phone the exact list of options the car was ordered with.

http://uploads.tapatalk-cdn.com/2016...2399de16a2.jpg

If the car doesn't have Nav,, the buttons would be on the shifter console to the rear of the shifter