Audi A4, S4, RS 4 Cabriolet, 8H / B7 (USA)

Differential fluid capacity & service interval

Audi A4, S4, RS 4 Cabriolet, 8H / B7 (USA) differential fluid capacity ranges from 0,9 to 1,5 liters. Service intervals include checks at 15000 miles or 12 months and 20000 miles or 12 months. The data covers 24 configurations.

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

TypeSpecifications
  • RS 4 Cabriolet (309 kW) (2007-2009)
  • Rear
  • Use: Normal
  • Capacity 0,9 liter
  • Check 20000 miles/ 12 months
  • Code: 0AR
  • RS 4 Cabriolet (309 kW) (2007-2009)
  • Rear
  • Use: First check only
  • Capacity 0,9 liter
  • Check 15000 miles/ 12 months
  • Code: 0AR
  • S4 Cabriolet (253 kW) (2006-2008)
  • Rear
  • Use: Normal
  • Capacity 1,5 liter
  • Check 20000 miles/ 12 months
  • Code: 01R
  • S4 Cabriolet (253 kW) (2006-2008)
  • Rear
  • Use: First check only
  • Capacity 1,5 liter
  • Check 15000 miles/ 12 months
  • Code: 01R
  • S4 Cabriolet (253 kW) (2006-2008)
  • Rear
  • Use: Normal
  • Capacity 0,9 liter
  • Check 20000 miles/ 12 months
  • Code: 0AR
  • S4 Cabriolet (253 kW) (2006-2008)
  • Rear
  • Use: First check only
  • Capacity 0,9 liter
  • Check 15000 miles/ 12 months
  • Code: 0AR
  • A4 Cabriolet 2.0 (147 kW) (2005-2008)
  • Front
  • Use: Normal
  • Capacity 1,3 liter
  • Check 20000 miles/ 12 months
  • A4 Cabriolet 2.0 (147 kW) (2005-2008)
  • Front
  • Use: First check only
  • Capacity 1,3 liter
  • Check 15000 miles/ 12 months
  • A4 Cabriolet 2.0 quattro (147 kW) (2005-2008)
  • Front
  • Use: Normal
  • Capacity 1,1 liter
  • Check 20000 miles/ 12 months
  • A4 Cabriolet 2.0 quattro (147 kW) (2005-2008)
  • Front
  • Use: First check only
  • Capacity 1,1 liter
  • Check 15000 miles/ 12 months
  • A4 Cabriolet 2.0 quattro (147 kW) (2005-2008)
  • Rear
  • Use: Normal
  • Capacity 1,5 liter
  • Check 20000 miles/ 12 months
  • Code: 01R
  • A4 Cabriolet 2.0 quattro (147 kW) (2005-2008)
  • Rear
  • Use: First check only
  • Capacity 1,5 liter
  • Check 15000 miles/ 12 months
  • Code: 01R
  • A4 Cabriolet 2.0 quattro (147 kW) (2005-2008)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • Check 20000 miles/ 12 months
  • Code: 08V
  • A4 Cabriolet 2.0 quattro (147 kW) (2005-2008)
  • Rear
  • Use: First check only
  • Capacity 1 liter
  • Check 15000 miles/ 12 months
  • Code: 08V
  • A4 Cabriolet 2.0 quattro (147 kW) (2005-2008)
  • Rear
  • Use: Normal
  • Capacity 0,9 liter
  • Check 20000 miles/ 12 months
  • Code: 0AR
  • A4 Cabriolet 2.0 quattro (147 kW) (2005-2008)
  • Rear
  • Use: First check only
  • Capacity 0,9 liter
  • Check 15000 miles/ 12 months
  • Code: 0AR
  • A4 Cabrriolet 3.2 quattro (188 kW) (2005-2008)
  • Front
  • Use: Normal
  • Capacity 1,1 liter
  • Check 20000 miles/ 12 months
  • A4 Cabrriolet 3.2 quattro (188 kW) (2005-2008)
  • Front
  • Use: First check only
  • Capacity 1,1 liter
  • Check 15000 miles/ 12 months
  • A4 Cabrriolet 3.2 quattro (188 kW) (2005-2008)
  • Rear
  • Use: Normal
  • Capacity 1,5 liter
  • Check 20000 miles/ 12 months
  • Code: 01R
  • A4 Cabrriolet 3.2 quattro (188 kW) (2005-2008)
  • Rear
  • Use: First check only
  • Capacity 1,5 liter
  • Check 15000 miles/ 12 months
  • Code: 01R
  • A4 Cabrriolet 3.2 quattro (188 kW) (2005-2008)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • Check 20000 miles/ 12 months
  • Code: 08V
  • A4 Cabrriolet 3.2 quattro (188 kW) (2005-2008)
  • Rear
  • Use: First check only
  • Capacity 1 liter
  • Check 15000 miles/ 12 months
  • Code: 08V
  • A4 Cabrriolet 3.2 quattro (188 kW) (2005-2008)
  • Rear
  • Use: Normal
  • Capacity 0,9 liter
  • Check 20000 miles/ 12 months
  • Code: 0AR
  • A4 Cabrriolet 3.2 quattro (188 kW) (2005-2008)
  • Rear
  • Use: First check only
  • Capacity 0,9 liter
  • Check 15000 miles/ 12 months
  • Code: 0AR

Additional Notes

  • The Audi A4 Cabriolet 2.0 (147 kW) in front-wheel-drive form carries a front differential fluid capacity of 1.3 liters, which is notably larger than the 1.1-liter front differential capacity specified for the quattro variant of the same engine.
  • The front differential on the A4 Cabriolet 2.0 quattro (147 kW) holds 1.1 liters, a figure shared identically by the 3.2 quattro (188 kW) front differential, indicating a common front differential unit across both quattro engine variants from 2005-2008.
  • Rear differential capacity on the quattro-equipped A4 Cabriolet variants spans three distinct values — 1.5 liters, 1.0 liter, and 0.9 liters — all listed under the same model and model year range, reflecting multiple rear differential unit configurations that can be fitted to the same vehicle.
  • The 1.5-liter rear differential capacity represents the largest rear differential fill volume across all configurations in the specifications, appearing in the A4 Cabriolet 2.0 quattro (147 kW), the 3.2 quattro (188 kW), and the S4 Cabriolet (253 kW) from 2006-2008.
  • The RS 4 Cabriolet (309 kW), covering 2007-2009, carries a rear differential fluid capacity of 0.9 liters, which is the smallest rear differential volume listed across all configurations in the specifications.
  • Under normal use conditions, all configurations across the specifications share a check interval of 20,000 miles or 12 months, whichever comes first, for differential fluid.
  • A first check only interval of 15,000 miles or 12 months is specified across all configurations, applying exclusively to the initial service check rather than recurring maintenance cycles.
  • The S4 Cabriolet (253 kW) rear differential specifications list two separate capacity values — 1.5 liters and 0.9 liters — under both normal and first check only conditions, consistent with the pattern seen in the A4 quattro variants where multiple rear differential units are accounted for within a single model designation.

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