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

Differential fluid capacity & service interval

Audi A3, S3, RS 3, 8YS (USA) models utilize differential fluid with a capacity range of 0,4 to 0,9 liters. Service intervals include checks at 10000 miles or 12 months and changes at 40000 miles or 48 months. The data covers 4 configurations.

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

TypeSpecifications
  • RS 3 2.5 TFSI quattro (299 kW) (2022- )
  • Rear
  • Use: Normal
  • Capacity 0,6 liter
  • Code: 08E
  • RS 3 2.5 TFSI quattro (299 kW) (2022- )
  • Rear, outer sections
  • Use: Normal
  • Capacity 0,4 liter (each side)
  • Check 10000 miles/ 12 months
  • Change 40000 miles/ 48 months
  • Code: 08E
  • A3 40 TFSI quattro (150 kW) (2021- )
  • Rear
  • Use: Normal
  • Capacity 0,9 liter
  • Code: 0CQ
  • S3 2.0 TFSI quattro (228 kW) (2021- )
  • Rear
  • Use: Normal
  • Capacity 0,9 liter
  • Code: 0CQ

Additional Notes

  • The Audi A3 40 TFSI quattro (150 kW) rear differential holds 0.9 liter, a figure shared by the S3 2.0 TFSI quattro (228 kW), despite the meaningful power difference between the two configurations.
  • The RS 3 2.5 TFSI quattro (299 kW) rear differential carries a central fill capacity of 0.6 liter, which is notably lower than the 0.9 liter figure associated with the A3 40 TFSI quattro and S3 variants.
  • Beyond the central 0.6 liter capacity, the RS 3 2.5 TFSI quattro rear differential also includes outer sections, each holding 0.4 liter per side, meaning the total differential fluid volume across all three chambers is considerably higher than the central figure alone suggests.
  • The outer sections of the RS 3 2.5 TFSI quattro rear differential carry a dedicated check interval of 10,000 miles or 12 months under normal use conditions, establishing a routine inspection cycle separate from any change interval.
  • Under normal use conditions, the RS 3 2.5 TFSI quattro rear differential outer sections are subject to a fluid change interval of 40,000 miles or 48 months, which corresponds to a four-year or 40,000-mile service cycle.
  • No change interval is listed for the central rear differential cavity on the RS 3 2.5 TFSI quattro, the A3 40 TFSI quattro, or the S3 2.0 TFSI quattro, whereas the RS 3 outer sections carry explicit check and change intervals, reflecting the more complex multi-chamber design of the RS 3 rear differential assembly.

Other Systems