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

Coolant capacity & service interval

Audi A4, S4, RS 4 Cabriolet, 8H / B7 (USA) models utilize coolant with a capacity range of 9 to 12,2 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
RS 4 Cabriolet (309 kW) (2007-2009)
  • Use: Normal
  • Capacity 11,5 liter
  • Check 20000 miles/ 12 months
RS 4 Cabriolet (309 kW) (2007-2009)
  • Use: First check only
  • Capacity 11,5 liter
  • Check 15000 miles/ 12 months
S4 Cabriolet (253 kW) (2006-2008)
  • Use: Normal
  • Capacity 12,2 liter
  • Check 20000 miles/ 12 months
S4 Cabriolet (253 kW) (2006-2008)
  • Use: First check only
  • Capacity 12,2 liter
  • Check 15000 miles/ 12 months
A4 Cabriolet 2.0 (147 kW) (2005-2008)
  • Use: Normal
  • Capacity 9 liter
  • Check 20000 miles/ 12 months
A4 Cabriolet 2.0 (147 kW) (2005-2008)
  • Use: First check only
  • Capacity 9 liter
  • Check 15000 miles/ 12 months
A4 Cabriolet 2.0 quattro (147 kW) (2005-2008)
  • Use: Normal
  • Capacity 9 liter
  • Check 20000 miles/ 12 months
A4 Cabriolet 2.0 quattro (147 kW) (2005-2008)
  • Use: First check only
  • Capacity 9 liter
  • Check 15000 miles/ 12 months
A4 Cabrriolet 3.2 quattro (188 kW) (2005-2008)
  • Use: Normal
  • Capacity 9 liter
  • Check 20000 miles/ 12 months
A4 Cabrriolet 3.2 quattro (188 kW) (2005-2008)
  • Use: First check only
  • Capacity 9 liter
  • Check 15000 miles/ 12 months

Additional Notes

  • The Audi A4, S4, RS 4 Cabriolet 8H / B7 (USA) coolant specifications cover three distinct capacity values across the model range: 9 liters, 11.5 liters, and 12.2 liters, each corresponding to a different engine configuration.
  • The A4 Cabriolet 2.0 (147 kW) in both rear-wheel-drive and quattro all-wheel-drive forms shares an identical 9-liter cooling system capacity for 2005-2008, indicating the drivetrain layout has no effect on coolant volume for that engine.
  • The RS 4 Cabriolet (309 kW) carries a 11.5-liter cooling system capacity for 2007-2009, a larger figure than the A4 2.0 variants, consistent with the greater thermal demands of a higher-output engine.
  • The S4 Cabriolet (253 kW) holds the largest cooling system capacity in the lineup at 12.2 liters for 2006-2008, exceeding even the RS 4 Cabriolet figure of 11.5 liters despite the RS 4 producing more power.
  • Across all configurations, the normal-use check interval is set at 20,000 miles or 12 months, whichever comes first, applying to the A4 2.0, A4 2.0 quattro, A4 3.2 quattro, RS 4, and S4 Cabriolet variants alike.
  • A first-check-only interval of 15,000 miles or 12 months is specified for every configuration in the range, meaning the initial coolant inspection occurs earlier than subsequent normal-use checks.
  • The 5,000-mile reduction in the first-check-only interval relative to the normal 20,000-mile schedule applies uniformly regardless of engine size or capacity, from the 9-liter A4 2.0 system through to the 12.2-liter S4 system.
  • The A4 Cabriolet 3.2 quattro (188 kW) shares the same 9-liter capacity and identical check intervals as the lower-output A4 2.0 variants for 2005-2008, despite the displacement and power difference between the two engines.

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