Audi A6 2018–2023 car dimensions: 4954 mm long, 1886 mm wide and 1481 mm high. Unladen weight is 2,020 kg. Braked towing is 2,100 kg.
The S6 Avant comes with dual MMI touch response screens as standard, a 10.1-inch upper display for navigation and media plus an 8.6-inch lower one for climate and inputs. Four-zone automatic climate control is fitted. Cruise control is standard. adaptive versions sit in option packages. Parking sensors front and rear are standard. Audi pre sense provides automatic emergency braking as standard. Blind-spot warning and lane-keep assist appear only in assistance packages. A reversing camera is available as an option.
Boot space measures 550 litres with the rear seats up and expands to 1660 litres when they are folded. The powered tailgate is standard.
Braked towing capacity is 2100 kg and unbraked 750 kg. Payload is 560 kg based on a kerb weight of 2095 kg and gross vehicle weight of 2655 kg. The S sport suspension with damper control is standard. adaptive air suspension is optional. No specific heavy-duty cooling or reinforced work suspension is listed.
The cabin is spacious with strong elbow and knee room plus a quiet ride from the rigid steel-aluminum body and strong aeroacoustics. S models get Alcantara sport seats with multi-way electric adjustment and four-zone climate as standard. Optional contour seats add ventilation and massage. Dual MMI touch screens sit angled to the driver for easy control. Optional panoramic glass roof and air quality package with scents further lift long-trip ease.
Mild hybrid system standard on all engines
LongLife service up to 30,000 km or 2 years
Euro NCAP 5 stars in 2018
Standard Audi pre sense front emergency braking
S6 Avant combined fuel use stated at 6.5 l/100 km
Two-year general warranty standard
All engines use a mild hybrid setup that cuts real-world fuel use and lets the car coast with the engine off between 55 and 160 km/h. The S6 Avant diesel returns a combined figure of 6.5 l/100 km.
Service follows the LongLife program with intervals up to 30,000 km or two years, shown by the onboard indicator. Oil changes and inspections stay within that window under normal use.
The car scored five stars in the 2018 Euro NCAP test with strong adult and child protection plus solid assistance scores. Standard kit includes pre sense front AEB, multiple airbags and seat-belt reminders. City and Tour packages add more radar and camera aids.
Keep the car on Audi service records for software updates and warranty cover. The two-year base warranty, three-year paint and twelve-year rust protection apply. Regular longer runs help diesel particulate filters stay clear.
Length 4954 mm, Width 1886 mm, Height 1481 mm, Wheelbase 2928 mm (A6 2018–2023)
Sources: manufacturer data, Audi S6 Avant TDI Technical Data, Program, Audi press information on the 2019 S TDI models, Audi S6 Avant TDI technical data, Germany, 29 August 2024: discs 400/350 mm.