Audi A4, S4, 8K / B8 (USA)

Differential fluid capacity & service interval

Audi A4, S4, 8K / B8 (USA) differential fluid capacity ranges from 0,9 to 1,3 liters. Service intervals include checks at 15000 or 20000 miles, or every 12 to 24 months. The data covers 42 configurations.

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

TypeSpecifications
  • A4 2.0 TFSI (162 kW) (2013-2016)
  • Front
  • Use: Normal
  • Capacity 1,3 liter
  • Check 20000 miles/ 24 months
  • A4 2.0 TFSI (162 kW) (2013-2016)
  • Front
  • Use: First check only
  • Capacity 1,3 liter
  • Check 15000 miles/ 24 months
  • A4 2.0 TFSI quattro (162 kW) (2013-2016)
  • From automatic
  • Use: Normal
  • Capacity 1 liter
  • Check 20000 miles/ 24 months
  • A4 2.0 TFSI quattro (162 kW) (2013-2016)
  • From automatic
  • Use: First check only
  • Capacity 1 liter
  • Check 15000 miles/ 24 months
  • A4 2.0 TFSI quattro (162 kW) (2013-2016)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • Check 20000 miles/ 24 months
  • A4 2.0 TFSI quattro (162 kW) (2013-2016)
  • Rear
  • Use: First check only
  • Capacity 1 liter
  • Check 15000 miles/ 24 months
  • A4 Avant quattro 2.0 TFSI (162 kW) (2013-2016)
  • From automatic
  • Use: Normal
  • Capacity 1 liter
  • Check 20000 miles/ 24 months
  • A4 Avant quattro 2.0 TFSI (162 kW) (2013-2016)
  • From automatic
  • Use: First check only
  • Capacity 1 liter
  • Check 15000 miles/ 24 months
  • A4 Avant quattro 2.0 TFSI (162 kW) (2013-2016)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • Check 20000 miles/ 24 months
  • A4 Avant quattro 2.0 TFSI (162 kW) (2013-2016)
  • Rear
  • Use: First check only
  • Capacity 1 liter
  • Check 15000 miles/ 24 months
  • S4 (245 kW) (2013-2016)
  • Rear
  • Use: Normal
  • Capacity 0,9-1 liter
  • Check 20000 miles/ 24 months
  • Code: 0BF
  • S4 (245 kW) (2013-2016)
  • Rear
  • Use: First check only
  • Capacity 0,9-1 liter
  • Check 15000 miles/ 24 months
  • Code: 0BF
  • A4 2.0 TFSI quattro (155 kW) (2010-2013)
  • From automatic
  • Use: Normal
  • Capacity 1 liter
  • Check 20000 miles/ 12 months
  • A4 2.0 TFSI quattro (155 kW) (2010-2013)
  • From automatic
  • Use: First check only
  • Capacity 1 liter
  • Check 15000 miles/ 12 months
  • A4 2.0 TFSI quattro (155 kW) (2010-2013)
  • Rear
  • Use: Normal
  • Capacity 0,9 liter
  • Check 20000 miles/ 12 months
  • Code: 0BC
  • A4 2.0 TFSI quattro (155 kW) (2010-2013)
  • Rear
  • Use: First check only
  • Capacity 0,9 liter
  • Check 15000 miles/ 12 months
  • Code: 0BC
  • A4 2.0 TFSI quattro (155 kW) (2010-2013)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • Check 20000 miles/ 12 months
  • Code: 0BD
  • A4 2.0 TFSI quattro (155 kW) (2010-2013)
  • Rear
  • Use: First check only
  • Capacity 1 liter
  • Check 15000 miles/ 12 months
  • Code: 0BD
  • A4 Avant quattro 2.0 TFSI (155 kW) (2010-2013)
  • From automatic
  • Use: Normal
  • Capacity 1 liter
  • Check 20000 miles/ 12 months
  • A4 Avant quattro 2.0 TFSI (155 kW) (2010-2013)
  • From automatic
  • Use: First check only
  • Capacity 1 liter
  • Check 15000 miles/ 12 months
  • A4 Avant quattro 2.0 TFSI (155 kW) (2010-2013)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • Check 20000 miles/ 12 months
  • A4 Avant quattro 2.0 TFSI (155 kW) (2010-2013)
  • Rear
  • Use: First check only
  • Capacity 1 liter
  • Check 15000 miles/ 12 months
  • A4 Avant quattro 2.0 TFSI (155 kW) (2010-2013)
  • Rear
  • Use: Normal
  • Capacity 0,9 liter
  • Check 20000 miles/ 12 months
  • Code: 0BC
  • A4 Avant quattro 2.0 TFSI (155 kW) (2010-2013)
  • Rear
  • Use: First check only
  • Capacity 0,9 liter
  • Check 15000 miles/ 12 months
  • Code: 0BC
  • A4 Avant quattro 2.0 TFSI (155 kW) (2010-2013)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • Check 20000 miles/ 12 months
  • Code: 0BD
  • A4 Avant quattro 2.0 TFSI (155 kW) (2010-2013)
  • Rear
  • Use: First check only
  • Capacity 1 liter
  • Check 15000 miles/ 12 months
  • Code: 0BD
  • S4 (245 kW) (2009-2013)
  • Rear
  • Use: Normal
  • Capacity 0,9-1 liter
  • Check 20000 miles/ 12 months
  • Code: 0BC
  • S4 (245 kW) (2009-2013)
  • Rear
  • Use: First check only
  • Capacity 0,9-1 liter
  • Check 15000 miles/ 12 months
  • Code: 0BC
  • S4 (245 kW) (2009-2013)
  • Rear
  • Use: Normal
  • Capacity 0,95 liter
  • Check 20000 miles/ 12 months
  • Code: 0BF
  • S4 (245 kW) (2009-2013)
  • Rear
  • Use: First check only
  • Capacity 0,95 liter
  • Check 15000 miles/ 12 months
  • Code: 0BF
  • A4 2.0 TFSI (155 kW) (2008-2013)
  • Front
  • Use: Normal
  • Capacity 1,1 liter
  • Check 20000 miles/ 12 months
  • A4 2.0 TFSI (155 kW) (2008-2013)
  • Front
  • Use: First check only
  • Capacity 1,1 liter
  • Check 15000 miles/ 12 months
  • A4 2.0 TFSI quattro (155 kW) (2008-2010)
  • From automatic
  • Use: Normal
  • Capacity 1 liter
  • Check 20000 miles/ 12 months
  • A4 2.0 TFSI quattro (155 kW) (2008-2010)
  • From automatic
  • Use: First check only
  • Capacity 1 liter
  • Check 15000 miles/ 12 months
  • A4 2.0 TFSI quattro (155 kW) (2008-2010)
  • Rear
  • Use: Normal
  • Capacity 0,9 liter
  • Check 20000 miles/ 12 months
  • Code: 0BC
  • A4 2.0 TFSI quattro (155 kW) (2008-2010)
  • Rear
  • Use: First check only
  • Capacity 0,9 liter
  • Check 15000 miles/ 12 months
  • Code: 0BC
  • A4 2.0 TFSI quattro (155 kW) (2008-2010)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • Check 20000 miles/ 12 months
  • Code: 0BD
  • A4 2.0 TFSI quattro (155 kW) (2008-2010)
  • Rear
  • Use: First check only
  • Capacity 1 liter
  • Check 15000 miles/ 12 months
  • Code: 0BD
  • A4 Avant quattro 2.0 TFSI (155 kW) (2008-2010)
  • From automatic
  • Use: Normal
  • Capacity 1 liter
  • Check 20000 miles/ 12 months
  • A4 Avant quattro 2.0 TFSI (155 kW) (2008-2010)
  • From automatic
  • Use: First check only
  • Capacity 1 liter
  • Check 15000 miles/ 12 months
  • A4 Avant quattro 2.0 TFSI (155 kW) (2008-2010)
  • Rear
  • Use: Normal
  • Capacity 0,9 liter
  • Check 20000 miles/ 12 months
  • Code: 0BC
  • A4 Avant quattro 2.0 TFSI (155 kW) (2008-2010)
  • Rear
  • Use: First check only
  • Capacity 0,9 liter
  • Check 15000 miles/ 12 months
  • Code: 0BC

Additional Notes

  • The front differential fluid capacity for the Audi A4 2.0 TFSI (155 kW) is 1.1 liters, while the updated 162 kW variant covering 2013-2016 carries a slightly larger 1.3-liter front differential capacity. A capacity increase of this kind typically reflects a revised differential housing or gear set introduced with the higher-output engine.
  • Across all 155 kW quattro configurations from 2008-2013, the rear differential fluid capacity is listed at either 0.9 or 1 liter depending on the specific unit fitted. Both values appear as separate entries for the same model year ranges, indicating that two different rear differential assemblies were used within the same production period.
  • The S4 (245 kW) rear differential for 2009-2013 carries a capacity range of 0.9-1 liter in one entry and a fixed 0.95-liter figure in a separate entry. The fixed 0.95-liter value represents a more precise fill specification for a particular rear differential variant, while the 0.9-1 liter range accommodates slight variation across units.
  • A "first check only" interval of 15,000 miles applies to differential fluid checks across all configurations listed. This shorter initial interval is a break-in check, used to assess fluid condition after new gear surfaces have worn in and before the standard recurring schedule takes effect.
  • Following the first check, the recurring normal-use interval for all 155 kW configurations is 20,000 miles or 12 months, whichever comes first. The dual-condition format means the time limit can trigger a service even when mileage has not been reached, which is relevant for low-mileage use.
  • The 162 kW A4 and A4 Avant quattro configurations from 2013-2016 carry a normal-use check interval of 20,000 miles or 24 months. The extended time component, doubled from 12 to 24 months compared to earlier 155 kW entries, reflects a longer calendar-based service window for the same mileage threshold.
  • The S4 (245 kW) rear differential intervals follow the same 20,000-mile and 12-month normal-use structure as the 155 kW A4 quattro entries for 2009-2013. For the 2013-2016 S4, the time component extends to 24 months, matching the pattern seen in the 162 kW A4 quattro entries of the same period.
  • The "differential, from automatic" label used in quattro configurations refers to the front differential unit that is integrated with or driven from the automatic transmission assembly. A separate rear differential entry appears alongside it in all quattro rows, reflecting the independent fluid servicing requirements of each axle unit in the all-wheel-drive drivetrain.
  • Front-wheel-drive A4 2.0 TFSI entries list only a single front differential, with no rear differential or center differential entries. Quattro variants add both a front differential tied to the transmission and a standalone rear differential, each with independent capacity and interval specifications.

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