This Audi A6 Avant TDI Ultra was back in for an enhancement detail having preivously had the wheel protection package and a hub/caliper repaint. A single stage machine polish was carried out to remove minor swirl marks and defects. Protecting the finish was Gtechniq’s Crystal Serum Light with Exo V4 on top. Exterior glass coated with Gtechniq Smart Glass. Wheels topped up with Gtechniq C2V3. Interior cleaned and vacuumed throughout. Engine bay cleaned and dressed.