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

Coolant capacity & service interval

Audi A4, S4, RS 4, 8E / B7 (USA) models utilize coolant with a capacity range of 9 to 12,2 liters. Service intervals consist of checks every 15000 miles or 12 months and 20000 miles or 12 months. The data covers 12 configurations.

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

TypeSpecifications
RS 4 4.2 V8 quattro (309 kW) (2006-2008)
  • Use: Normal
  • Capacity 11,5 liter
  • Check 20000 miles/ 12 months
RS 4 4.2 V8 quattro (309 kW) (2006-2008)
  • Use: First check only
  • Capacity 11,5 liter
  • Check 15000 miles/ 12 months
A4 2.0 T (147 kW) (2005-2008)
  • Use: Normal
  • Capacity 9 liter
  • Check 20000 miles/ 12 months
A4 2.0 T (147 kW) (2005-2008)
  • Use: First check only
  • Capacity 9 liter
  • Check 15000 miles/ 12 months
A4 2.0 T quattro (147 kW) (2005-2008)
  • Use: Normal
  • Capacity 9 liter
  • Check 20000 miles/ 12 months
A4 2.0 T quattro (147 kW) (2005-2008)
  • Use: First check only
  • Capacity 9 liter
  • Check 15000 miles/ 12 months
A4 3.2 (188 kW) (2005-2008)
  • Use: Normal
  • Capacity 9 liter
  • Check 20000 miles/ 12 months
A4 3.2 (188 kW) (2005-2008)
  • Use: First check only
  • Capacity 9 liter
  • Check 15000 miles/ 12 months
A4 3.2 quattro (188 kW) (2005-2008)
  • Use: Normal
  • Capacity 9 liter
  • Check 20000 miles/ 12 months
A4 3.2 quattro (188 kW) (2005-2008)
  • Use: First check only
  • Capacity 9 liter
  • Check 15000 miles/ 12 months
S4 4.2 V8 quattro (253 kW) (2005-2008)
  • Use: Normal
  • Capacity 12,2 liter
  • Check 20000 miles/ 12 months
S4 4.2 V8 quattro (253 kW) (2005-2008)
  • Use: First check only
  • Capacity 12,2 liter
  • Check 15000 miles/ 12 months

Additional Notes

  • The Audi A4 2.0 T and A4 3.2 cooling systems, both in front-wheel-drive and quattro all-wheel-drive configurations, share an identical 9-liter capacity across the 2005-2008 model years, indicating that drivetrain layout does not affect coolant volume for those engine families.
  • The S4 4.2 V8 quattro carries the largest cooling system capacity in the lineup at 12.2 liters, which reflects the greater thermal management demands of a high-output V8 engine compared to the four-cylinder and six-cylinder variants.
  • The RS 4 4.2 V8 quattro is specified at 11.5 liters, a figure that falls between the A4 four-cylinder/six-cylinder capacity and the S4 V8 capacity, despite both the RS 4 and S4 using a 4.2-liter V8 architecture.
  • A first-check-only interval of 15,000 miles or 12 months applies to every configuration in the 2005-2008 range, covering the A4 2.0 T, A4 3.2, RS 4 4.2 V8 quattro, and S4 4.2 V8 quattro. This earlier interval is specific to the initial service event only.
  • Following the first check, all configurations transition to a normal-use interval of 20,000 miles or 12 months, whichever comes first, regardless of engine displacement or drivetrain.
  • The RS 4 4.2 V8 quattro carries a model year range of 2006-2008, which is two years shorter at the start than the 2005-2008 range shared by the A4 and S4 variants in the same generation.

Other Systems