Audi R8, 4S (USA)

Brake fluid capacity & service interval

Audi R8, 4S (USA) brake fluid capacity is 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
R8 5.2 FSI V10 Performance quattro (449 kW) (2019-2022)
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
R8 5.2 FSI V10 Performance quattro (456 kW) (2018-2019)
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
R8 5.2 FSI V10 quattro (419 kW) (2018-2022)
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
R8 5.2 FSI V10 quattro (397 kW) (2016-2018)
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
R8 5.2 FSI V10 quattro Plus (449 kW) (2016-2018)
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months
R8 5.2 FSI V10 RWS (397 kW) (2016-2018)
  • Use: Normal
  • Capacity 1 liter
  • Check 10000 miles/ 12 months
  • Change 24 months

Additional Notes

  • The Audi R8 4S hydraulic brake system capacity is listed at 1 liter across all six configurations spanning 2016-2022. A 1-liter figure for a brake system represents a service fill capacity, accounting for the fluid volume held within the master cylinder reservoir, brake lines, and calipers during normal operating condition servicing.
  • The check interval of 10,000 miles or 12 months, whichever comes first, applies uniformly to all listed R8 4S configurations under normal use conditions. The dual-trigger structure of this interval means annual inspection is required even when mileage accumulation is low.
  • The change interval of 24 months is consistent across all configurations regardless of output level or drivetrain type. Brake fluid absorbs moisture over time, which lowers its boiling point, so a time-based rather than mileage-based change interval reflects the hygroscopic nature of glycol-ether brake fluids.
  • The 5.2 FSI V10 quattro is represented by two distinct power outputs: 397 kW covering 2016-2018 and 419 kW covering 2018-2022. Both share identical brake fluid capacity and service intervals despite the difference in engine output.
  • The R8 5.2 FSI V10 Performance quattro appears in two successive output variants: 456 kW for 2018-2019 and 449 kW for 2019-2022. The overlap at the 2019 model year indicates a mid-cycle output revision within the Performance trim, yet brake fluid specifications remain unchanged between the two.
  • The R8 5.2 FSI V10 RWS (397 kW), covering 2016-2018, shares the same brake fluid capacity and service intervals as the quattro variant of equivalent output from the same period. RWS denotes rear-wheel steering or rear-wheel series depending on market context, but the brake fluid system capacity is not differentiated from the all-wheel-drive configuration in these specifications.
  • The R8 5.2 FSI V10 quattro Plus (449 kW), listed for 2016-2018, carries the same 449 kW output as the later Performance quattro variant from 2019-2022, with both configurations sharing a 1-liter capacity and the 24-month change interval.

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