Today we got lots of snow, and after driving my A7 during very bad weather conditions for 400+ KM, I had an accident just before reaching the street where my house is located. Oh well...

So the car starts sliding/drifting during turn (speed is no more than 30 km/h) and I hit kerb with my rear wheel. Right after that, the system displays a hell lot of errors - TPMS Fault, Brake Guard Fault, Air Suspension Fault, Sports Differential Fault. After restarting the car, only Sports Differential Fault is displayed. The car drives perfectly fine, so I drive 10 KM (at the speed of turtle, just in case) to local dealer. The car sits there now, and they will only inspect it next week because of Holidays, but I'm curious at possible repairs...

Sure thing, some decorative plastic will need to be replaced, and also wheel (most likely). However, I'm concerned about sports differential because I found a story on the Internet where guy had the same error, and he ended up replacing whole part for 10.000 EUR. So, looking at the photos, what are your possible thoughts?

https://s10.postimg.org/5t8v90de1/DSC_0001.jpg
https://s10.postimg.org/4e7akarqh/DSC_0002.jpg

The body itself is not damaged in any way (no single dent).