Audi Q7, SQ7, 4MB / 4MG (USA)

Brake fluid capacity & service interval

Audi Q7, SQ7, 4MB / 4MG (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 8 configurations.

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

TypeSpecifications
Q7 45 TFSI quattro (195 kW) (2022- )
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
Q7 45 TFSI quattro (185 kW) (2020-2022)
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
Q7 55 TFSI quattro (250 kW) (2019- )
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
SQ7 4.0 TFSI quattro (373 kW) (2019- )
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
Q7 45 TFSI quattro (185 kW) (2018-2020)
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
Q7 55 TFSI quattro (245 kW) (2018-2019)
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
Q7 2.0 T quattro (185 kW) (2016-2018)
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
Q7 3.0 T quattro (245 kW) (2016-2018)
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months

Additional Notes

  • The brake system capacity across all Audi Q7 and SQ7 configurations listed is 1 liter. For brake fluid, a 1-liter figure represents a service fill volume, meaning the quantity needed to replenish or bleed the system during maintenance rather than a full hydraulic overhaul.
  • All configurations share a check interval of 10,000 miles or 12 months, whichever comes first. The dual-trigger format means calendar time alone can prompt a check even when mileage accumulation is low, which is relevant for vehicles driven infrequently.
  • The change interval for all listed configurations is 24 months under normal use conditions. Brake fluid is hygroscopic, meaning it absorbs moisture from the atmosphere over time, which lowers its boiling point. A time-based change interval rather than a mileage-based one reflects this moisture absorption characteristic.
  • The Q7 45 TFSI quattro appears across three separate specification rows covering 2018-2020, 2020-2022, and a starting year of 2022, with a power output change from 185 kW to 195 kW in the last entry. Despite the output difference, the brake system capacity and service intervals remain identical across all three rows.
  • The Q7 55 TFSI quattro is listed in two rows: a 245 kW variant covering 2018-2019 and a 250 kW variant starting in 2019. Both share the same 1-liter capacity, 10,000-mile or 12-month check interval, and 24-month change interval.
  • The SQ7 4.0 TFSI quattro, rated at 373 kW, carries the same 1-liter brake fluid capacity and identical service intervals as the lower-output Q7 variants. The 373 kW output represents a substantially higher power level, yet the brake system service specifications do not differ from the rest of the lineup in the data provided.
  • The earlier Q7 2.0 T quattro (185 kW) and Q7 3.0 T quattro (245 kW), both covering 2016-2018, carry the same brake system specifications as the later model-year configurations. The 2016 introduction of the 4M-generation Q7 platform established a brake fluid service standard that carried forward through the subsequent naming convention changes to the TFSI badging system.

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