For the 2012-2015 Audi A6 (C7 generation), the optional full LED headlight was a groundbreaking feature that used multiple LED bulbs—including 9 for the low beam—to provide brilliant, energy-efficient illumination and a distinctive, modern look for the vehicle . This advanced system often integrated functions like daytime running lights, turn signals, and cornering lights into a single, sophisticated unit, offering superior visibility and a high-tech aesthetic for models like the A6, S6, and RS6 .