Audi A4, S4, 8E / B6 (USA)

Manual transmission fluid capacity & service interval

Audi A4, S4, 8E / B6 (USA) manual transmission fluid capacities range from 2,25 to 3,5 liters. Service intervals include checks at 15000 miles or 12 months and 20000 miles or 12 months. The data covers 10 configurations.

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

TypeSpecifications
  • S4 4.2 quattro (253 kW) (2003-2005)
  • Manual/transferbox
  • Use: Normal
  • Capacity 3,2 liter (Initial fill)
  • Check 20000 miles/ 12 months
  • Code: 0A3 6/1
  • S4 4.2 quattro (253 kW) (2003-2005)
  • Manual/transferbox
  • Use: First check only
  • Capacity 3,2 liter (Initial fill)
  • Check 15000 miles/ 12 months
  • Code: 0A3 6/1
A4 1.8 T (125 kW) (2001-2005)
  • Use: Normal
  • Capacity 2,25 liter (Initial fill)
  • Check 20000 miles/ 12 months
  • Code: 01W 5/1
A4 1.8 T (125 kW) (2001-2005)
  • Use: First check only
  • Capacity 2,25 liter (Initial fill)
  • Check 15000 miles/ 12 months
  • Code: 01W 5/1
  • A4 1.8 T quattro (125 kW) (2001-2005)
  • Manual/transferbox
  • Use: Normal
  • Capacity 2,75 liter
  • Check 20000 miles/ 12 months
  • Code: 01A 5/1
  • A4 1.8 T quattro (125 kW) (2001-2005)
  • Manual/transferbox
  • Use: First check only
  • Capacity 2,75 liter
  • Check 15000 miles/ 12 months
  • Code: 01A 5/1
A4 3.0 5V quattro (162 kW) (2001-2005)
  • Use: Normal
  • Capacity 2,5 liter
  • Check 20000 miles/ 12 months
  • Code: 01E 6/1
A4 3.0 5V quattro (162 kW) (2001-2005)
  • Use: First check only
  • Capacity 2,5 liter
  • Check 15000 miles/ 12 months
  • Code: 01E 6/1
  • A4 3.0 5V quattro (162 kW) (2001-2005)
  • Manual/transferbox
  • Use: Normal
  • Capacity 3,5 liter
  • Check 20000 miles/ 12 months
  • Code: 02X 6/1
  • A4 3.0 5V quattro (162 kW) (2001-2005)
  • Manual/transferbox
  • Use: First check only
  • Capacity 3,5 liter
  • Check 15000 miles/ 12 months
  • Code: 02X 6/1

Additional Notes

  • The Audi A4 1.8 T (125 kW) carries a manual transmission initial fill capacity of 2.25 liters, a value labeled as initial fill, meaning the quantity introduced at the factory or during a full overhaul rather than a top-up service.
  • Under normal use conditions, the A4 1.8 T (125 kW) manual transmission is scheduled for a fluid check at 20,000 miles or 12 months, whichever comes first.
  • The first check only interval for the A4 1.8 T (125 kW) is set at 15,000 miles or 12 months, applying exclusively to the initial inspection after the transmission enters service, after which the 20,000-mile normal schedule takes over.
  • Adding the quattro all-wheel-drive system to the 1.8 T raises the combined transaxle and transfer box fluid capacity to 2.75 liters, a half-liter increase over the front-wheel-drive manual transmission figure, reflecting the additional transfer box volume.
  • The Audi A4 3.0 5V quattro (162 kW) lists two separate capacity entries: 2.5 liters for the transaxle alone and 3.5 liters when the transfer box is included, indicating the transfer box itself accounts for an additional full liter of fluid.
  • The 3.0 5V quattro transaxle-only capacity of 2.5 liters sits between the 1.8 T front-wheel-drive figure of 2.25 liters and the combined transaxle-plus-transfer-box figure of 3.5 liters, showing how drivetrain configuration directly shapes total fluid volume requirements.
  • The S4 4.2 quattro (253 kW), covering model years 2003-2005, carries a combined transaxle and transfer box initial fill capacity of 3.2 liters, a value also designated as initial fill, consistent with a factory or overhaul fill quantity.
  • Across all configurations in the 2001-2005 Audi A4, S4, 8E / B6 (USA) lineup, the first check only interval is uniformly set 5,000 miles earlier than the normal interval, placing the first inspection at 15,000 miles versus the ongoing 20,000-mile schedule.

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