Audi A8, S8, 4H (USA)

AdBlue (DEF) capacity & service interval

Audi A8, S8, 4H (USA) models utilize AdBlue (DEF) with a capacity of 24 liters. The data covers 1 configuration.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
A8 3.0 TDI quattro (176 kW) (2012-2016)
  • Use: Normal
  • Capacity 24 liter

Additional Notes

  • The Audi A8 3.0 TDI quattro (176 kW) carries an AdBlue tank capacity of 24 liters, which is a relatively large reservoir volume for a passenger vehicle SCR system. Larger tank sizes like this are associated with extended refill intervals, reducing the frequency at which the fluid needs to be replenished under normal driving conditions.
  • The 24-liter figure listed for the 2012-2016 A8 3.0 TDI quattro (176 kW) reflects a service fill capacity, meaning the amount of AdBlue the tank holds during regular top-up service rather than a dry-fill or overhaul scenario.
  • The specification for the A8 3.0 TDI quattro (176 kW) is tied to a normal use condition, meaning the 24-liter capacity applies to standard operating circumstances rather than a severe or first-change-only service context.

Other Systems