Audi A3, S3, RS 3, 8V (USA)

Differential fluid capacity & service interval

Audi A3, S3, RS 3, 8V (USA) models utilize differential fluid with a capacity of 0,95 liter. Service intervals require a check every 20000 miles or 24 months. The data covers 10 configurations.

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

TypeSpecifications
  • A3 45 TFSI quatro (170 kW) (2018-2020)
  • Rear, as of prod. date 15-04-2019
  • Use: Normal
  • Capacity 0,95 liter (Initial fill)
  • Check 20000 miles/ 24 months
  • Code: 0CQ
  • A3 45 TFSI quatro (170 kW) (2018-2020)
  • Rear, up to prod. date 15-04-2019
  • Use: Normal
  • Capacity 0,95 liter (Initial fill)
  • Check 20000 miles/ 24 months
  • Code: 0CQ
  • RS 3 2.5 TFSI quattro (294 kW) (2018-2020)
  • Rear, as of prod. date 15-04-2019
  • Use: Normal
  • Capacity 0,95 liter
  • Check 20000 miles/ 24 months
  • RS 3 2.5 TFSI quattro (294 kW) (2018-2020)
  • Rear, up to prod. date 15-04-2019
  • Use: Normal
  • Capacity 0,95 liter
  • Check 20000 miles/ 24 months
  • Code: 0CQ
  • S3 2.0 TFSI quattro (215 kW) (2018-2020)
  • Rear, as of prod. date 15-04-2019
  • Use: Normal
  • Capacity 0,95 liter
  • Check 20000 miles/ 24 months
  • Code: 0CQ
  • S3 2.0 TFSI quattro (215 kW) (2018-2020)
  • Rear, up to prod. date 15-04-2019
  • Use: Normal
  • Capacity 0,95 liter
  • Check 20000 miles/ 24 months
  • Code: 0CQ
  • RS 3 2.5 TFSI quattro (294 kW) (2017-2018)
  • Rear
  • Use: Normal
  • Capacity 0,95 liter
  • Check 20000 miles/ 24 months
  • A3 1.8 TFSI quattro (125 kW) (2014-2016)
  • Rear
  • Use: Normal
  • Capacity 0,95 liter
  • Check 20000 miles/ 24 months
  • A3 2.0 TFSI quattro (162 kW) (2014-2018)
  • Rear
  • Use: Normal
  • Capacity 0,95 liter
  • Check 20000 miles/ 24 months
  • S3 2.0 TFSI quattro (215 kW) (2014-2018)
  • Rear
  • Use: Normal
  • Capacity 0,95 liter
  • Check 20000 miles/ 24 months

Additional Notes

  • The rear differential fluid capacity across all listed Audi A3, S3, and RS 3 8V quattro configurations is 0.95 liter. A capacity at this scale is typical of a compact rear differential unit, where the housing volume is small relative to front-wheel-drive-based platforms adapted for all-wheel drive.
  • All configurations share a check interval of 20,000 miles or 24 months under normal use conditions. A check interval, rather than a drain-and-fill interval, means the fluid level is inspected at that point rather than automatically replaced on a fixed schedule.
  • The A3 45 TFSI quattro (170 kW) entries label the 0.95 liter figure as an initial fill. An initial fill designation refers to the factory-installed fluid quantity at the time of manufacture, which serves as the reference volume for level checks and refills during service.
  • The RS 3 2.5 TFSI quattro (294 kW) entries covering 2018-2020 are split by a production date of April 15, 2019. The same 0.95 liter capacity and 20,000-mile or 24-month check interval apply to both the pre- and post-cutoff variants, meaning the production date distinction does not affect the fluid volume or service schedule in these specifications.
  • The S3 2.0 TFSI quattro (215 kW) follows the same production date split for 2018-2020 units, again with no difference in capacity or check interval between the two date-defined variants. The split likely reflects a hardware or supplier change at the assembly level rather than a servicing distinction.
  • The A3 1.8 TFSI quattro (125 kW), covering 2014-2016, and the A3 2.0 TFSI quattro (162 kW), covering 2014-2018, both carry the same 0.95 liter capacity without an initial fill label. The absence of that label in those rows indicates the figure represents a standard service fill rather than a factory-specific reference quantity.
  • Across the power outputs listed, which range from 125 kW in the A3 1.8 TFSI to 294 kW in the RS 3 2.5 TFSI, the rear differential fluid capacity remains unchanged at 0.95 liter. The consistency in capacity across a wide power range reflects the use of a shared or dimensionally similar rear differential housing across the 8V platform's quattro variants.

Other Systems