Dear Sir or Madam.
The following link leads you to the official press kit, where you can find all information about the Audi S TDI models.
https://www.audi-mediacenter.com/en/audi-s-tdi-11471
Fuel consumption of the Audi S TDI models
(Fuel consumption, CO2 emission figures. and efficiency classes given in ranges depend on the tire/wheel sets used)
Audi S4 sedan TDI
Combined fuel consumption in l/100 km: 6.2;
Combined CO2 emissions in g/km: 163–161
Audi S4 Avant TDI
Combined fuel consumption in l/100 km: 6.3
Combined CO2 emissions in g/km: 165–164
Audi S5 Coupé TDI
Combined fuel consumption in l/100 km: 6.2
Combined CO2 emissions in g/km: 163–161
Audi S5 Sportback TDI
Combined fuel consumption in l/100 km: 6.2
Combined CO2 emissions in g/km: 163–161
Audi S6 sedan TDI
Combined fuel consumption in l/100 km: 6.3–6.2
Combined CO2 emissions in g/km: 165–164
Audi S6 Avant TDI:
Combined fuel consumption in l/100 km: 6.5
Combined CO2 emissions in g/km: 171
Audi S7 Sportback TDI
Combined fuel consumption in l/100 km: 6.5
Combined CO2 emissions in g/km: 170
Audi SQ5 TDI
Combined fuel consumption in l/100 km: 6.8–6.6
Combined CO2 emissions in g/km: 177–172
Audi SQ7 TDI
Combined fuel consumption in l/100 km: 7.6 – 7.2
Combined CO2 emissions in g/km: 199 – 189