Audi Q5, SQ5, FY / FYG (USA)

Brake fluid capacity & service interval

Audi Q5, SQ5, FY / FYG (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 7 configurations.

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

TypeSpecifications
Q5 40 TFSI quattro (150 kW) (2022- )
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
Q5 45 TFSI quattro ultra (195 kW) (2021- )
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
Q5 55 TFSI e quattro (270 kW) (2019- )
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
Q5 45 TFSI quattro ultra (185 kW) (2018-2021)
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
SQ5 3.0 TFSI quattro (260 kW) (2018- )
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
Q5 2.0 TFSI quattro ultra (185 kW) (2017-2018)
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
SQ5 3.0 TFSI quattro (260 kW) (2017-2018)
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months

Additional Notes

  • The brake system capacity across all Q5, SQ5, and Q5 55 TFSI e quattro configurations is 1 liter. In brake system servicing, a 1-liter figure typically reflects the total fluid volume held within the master cylinder reservoir, brake lines, and calipers combined, representing a full system service fill rather than a partial top-up quantity.
  • The Audi Q5 2.0 TFSI quattro ultra (185 kW), covering model years 2017-2018, shares the same 1-liter capacity, 10,000-mile or 12-month check interval, and 24-month change interval as every other configuration listed. No variation in brake fluid service specifications exists across any of the engine outputs or model year ranges present in these rows.
  • The check interval of 10,000 miles or 12 months, whichever comes first, applies under normal use conditions across all listed configurations. In brake fluid maintenance, a time-based check interval exists because brake fluid is hygroscopic, meaning it absorbs moisture from the atmosphere over time regardless of mileage driven.
  • The change interval of 24 months applies uniformly under normal use conditions across all configurations. A 24-month replacement cycle is a common manufacturer-specified interval for brake fluid because moisture absorption raises the fluid's boiling point threshold over time, reducing resistance to vapor lock under high-heat braking conditions.
  • The Q5 45 TFSI quattro ultra appears in two separate entries: one rated at 185 kW covering 2018-2021, and another rated at 195 kW with a starting year of 2021. Despite the difference in power output between these two variants, both share identical brake system capacity and service interval specifications.
  • The SQ5 3.0 TFSI quattro (260 kW) also appears in two separate entries, one covering 2017-2018 and another with a starting year of 2018. Both carry the same 1-liter capacity and identical check and change intervals under normal use conditions.
  • The Q5 55 TFSI e quattro (270 kW), a plug-in hybrid configuration, carries the same brake system capacity and service intervals as the non-hybrid variants. Plug-in hybrid vehicles commonly use regenerative braking systems, which can reduce mechanical brake engagement frequency, yet the specified service intervals for brake fluid remain unchanged relative to the other configurations listed.

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