Audi A7, S7, RS 7, 4KA (USA)

Brake fluid capacity & service interval

Audi A7, S7, RS 7, 4KA (USA) models require 1 liter of brake fluid. Service intervals include checking every 10000 miles or 12 months and changing every 24 months. The data covers 5 configurations.

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

TypeSpecifications
RS 7 Performance TFSI quattro (463 kW) (2023- )
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
RS 7 TFSI quattro (441 kW) (2021-2023)
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
A7 55 TFSI e quattro (270 kW) (2019-2022)
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
S7 TFSI quattro (331 kW) (2019- )
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
A7 55 TFSI quattro (250 kW) (2018- )
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months

Additional Notes

  • The Audi A7, S7, RS 7, 4KA brake system capacity is listed at 1 liter across all configurations covered by the specifications, which is a figure consistent with a service fill rather than a full system overhaul volume.
  • The A7 55 TFSI e quattro (270 kW), covering model years 2019-2022, carries the same 1-liter brake fluid capacity as the non-hybrid A7 55 TFSI quattro (250 kW), indicating no capacity difference between the plug-in hybrid and conventional drivetrain variants.
  • The RS 7 TFSI quattro (441 kW) for 2021-2023 and the RS 7 Performance TFSI quattro (463 kW) starting from 2023 both share the 1-liter capacity figure, meaning the higher-output Performance variant does not carry a larger brake fluid volume specification.
  • Under normal use conditions, the check interval for all listed configurations is set at 10,000 miles or 12 months, whichever comes first, reflecting a time-and-distance combined threshold rather than a single trigger.
  • The change interval for brake fluid across all configurations is 24 months under normal use conditions. Brake fluid absorbs moisture over time, which lowers its boiling point, so a time-based interval rather than a mileage-based one is a standard industry approach for this fluid type.
  • The S7 TFSI quattro (331 kW), with a starting year of 2019, follows the same 10,000-mile or 12-month check schedule and 24-month change interval as the higher-output RS 7 variants, showing no differentiation in service timing between the S and RS model lines for brake fluid.

Other Systems