2005' Audi A6

Hello. I am selling an audi a6c6 2.0 tfsi. The only problem is the uneven operation of the engine resulting, according to the mechanic, from cracked seals on the vanos. The engine is generally after renovation and drove quite a long time but suddenly something happened. During normal driving, it doesn't feel like anything is wrong. Recently, the car made a route of about 700 km at a time and nothing happened with the a4b7 box. Selling because I have a few cars and it's not my priority. Inspection and OC valid for less than a year.