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

Transfer case fluid capacity & service interval

Audi A3, S3, RS 3, 8V (USA) transfer case fluid capacity ranges from 0,75 to 0,9 liters. Service intervals require a check every 20000 miles or 24 months. The data covers 7 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)
  • Angle gearbox
  • Use: Normal
  • Capacity 0,75-0,89 liter (Initial fill)
  • Check 20000 miles/ 24 months
  • RS 3 2.5 TFSI quattro (294 kW) (2018-2020)
  • Angle gearbox
  • Use: Normal
  • Capacity 0,8-0,9 liter
  • Check 20000 miles/ 24 months
  • S3 2.0 TFSI quattro (215 kW) (2018-2020)
  • Angle gearbox
  • Use: Normal
  • Capacity 0,75-0,89 liter
  • Check 20000 miles/ 24 months
  • RS 3 2.5 TFSI quattro (294 kW) (2017-2018)
  • Angle gearbox
  • Use: Normal
  • Capacity 0,8-0,9 liter
  • Check 20000 miles/ 24 months
  • A3 1.8 TFSI quattro (125 kW) (2014-2016)
  • Angle gearbox
  • Use: Normal
  • Capacity 0,9 liter
  • Check 20000 miles/ 24 months
  • A3 2.0 TFSI quattro (162 kW) (2014-2018)
  • Angle gearbox
  • Use: Normal
  • Capacity 0,9 liter
  • Check 20000 miles/ 24 months
  • S3 2.0 TFSI quattro (215 kW) (2014-2018)
  • Angle gearbox
  • Use: Normal
  • Capacity 0,9 liter
  • Check 20000 miles/ 24 months

Additional Notes

  • The angle gearbox, also called a transferbox, is the unit that splits drive torque between the front and rear axles in quattro all-wheel-drive configurations. All seven configurations listed here carry fluid specifications for this component.
  • The Audi A3 1.8 TFSI quattro (125 kW), A3 2.0 TFSI quattro (162 kW), and S3 2.0 TFSI quattro (215 kW) covering model years 2014-2018 share a fixed transfer case fluid capacity of 0.9 liter, indicating a single defined fill volume with no range tolerance.
  • The A3 45 TFSI quattro (170 kW) for 2018-2020 lists a capacity range of 0.75-0.89 liter marked as an initial fill. An initial fill value reflects the quantity used when the unit is first filled at the factory or after a dry assembly, which can differ from a service refill volume due to residual fluid retained in internal passages.
  • The S3 2.0 TFSI quattro (215 kW) shows a capacity shift between its two listed production periods. The 2014-2018 variant carries a fixed 0.9 liter, while the 2018-2020 variant lists a range of 0.75-0.89 liter, pointing to a revised transfer case unit or fill procedure introduced during that overlap year.
  • The RS 3 2.5 TFSI quattro (294 kW) specifies a capacity range of 0.8-0.9 liter across both its 2017-2018 and 2018-2020 entries. A stated range rather than a fixed value typically accounts for variation in fluid level acceptance depending on unit orientation, temperature at fill time, or manufacturing tolerances.
  • Every configuration across all model years and power outputs shares an identical service interval: a fluid check every 20,000 miles or 24 months under normal use conditions. A check interval, as opposed to a change interval, means the fluid level and condition are inspected rather than automatically replaced on that schedule.
  • All specifications are classified under normal use conditions. In automotive service terminology, normal use is distinguished from severe use, which typically involves more frequent service due to factors such as towing, off-road driving, or extreme temperatures. No severe-use interval is listed for any of these configurations.

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