Audi A5, S5, RS 5, F5 / F53 / F5P (USA)

Brake fluid capacity & service interval

Audi A5, S5, RS 5, F5 / F53 / F5P (USA) models utilize brake fluid with a capacity of 1 liter. Service intervals include checking every 10000 miles or 12 months and changing every 24 months. The data covers 6 configurations.

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

TypeSpecifications
A5 40TFSI quattro ultra (150 kW) (2021- )
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
A5 45 TFSI quattro (195 kW) (2020- )
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
A5 45 TFSI quattro (185 kW) (2018-2020)
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
RS 5 Coupé 2.9 TFSI quattro (331 kW) (2018- )
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
A5 2.0 TFSI quattro (185 kW) (2017-2018)
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
RS 5 Coupé 2.9 TFSI quattro (331 kW) (2017-2018)
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months

Additional Notes

  • Across all listed A5 and RS 5 configurations, the brake system capacity is rated at 1 liter. In brake system servicing, a 1-liter figure typically represents the total fluid volume held within the reservoir and hydraulic lines, which is the standard service fill quantity rather than a full system overhaul volume.
  • The Audi A5 2.0 TFSI quattro (185 kW) covers the 2017-2018 model years, while the A5 45 TFSI quattro carries the same 185 kW output for 2018-2020 before stepping up to 195 kW from 2020 onward. Despite the power difference between the later variants, the brake fluid capacity and service intervals remain identical across all three.
  • The RS 5 Coupé 2.9 TFSI quattro (331 kW) appears under two separate entries: one for 2017-2018 and another beginning in 2018. Both entries share the same 1-liter capacity, 10,000-mile or 12-month check interval, and 24-month change interval. The note for both RS 5 entries specifies "hydraulic brake system," distinguishing the terminology from the A5 entries, which use the broader "brake system" label.
  • All configurations listed carry a brake fluid check interval of 10,000 miles or 12 months, whichever comes first. The dual-trigger format, combining a mileage threshold with a fixed calendar period, reflects the moisture-absorbing nature of brake fluid, where time-based degradation can occur independently of vehicle use.
  • The change interval for brake fluid is set at 24 months across every listed configuration. A 24-month replacement cycle is a common manufacturer specification for glycol-based brake fluids, as hygroscopic absorption over time lowers the fluid's boiling point and can compromise braking performance under high-heat conditions.
  • All specifications are designated for normal use conditions. No severe-use or first-change-only intervals appear in the listed data, meaning the 24-month change interval applies uniformly under standard operating conditions for every A5 and RS 5 variant shown.

Other Systems