For Sale: Audi A6 Avant Le Mans S Line 2.0 TDI This Audi A6 Avant has had 3 owners and comes with a full service history. The MOT is valid until 27th February 2026, and a new clutch has just been fitted. The 2.0 TDI engine offers a great balance of power and fuel efficiency. 62,000 miles. Black. HPI Clear.