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

Coolant capacity & service interval

Audi A4, S4, 8K / B8 (USA) models use coolant with a capacity range of 7 to 12 liters. Service intervals include checks at 15000 to 20000 miles or 12 to 24 months. The data covers 20 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)
  • Use: Normal
  • Capacity 10 liter
  • Check 20000 miles/ 24 months
A4 2.0 TFSI (162 kW) (2013-2016)
  • Use: First check only
  • Capacity 10 liter
  • Check 15000 miles/ 24 months
A4 2.0 TFSI quattro (162 kW) (2013-2016)
  • Use: Normal
  • Capacity 10 liter
  • Check 20000 miles/ 24 months
A4 2.0 TFSI quattro (162 kW) (2013-2016)
  • Use: First check only
  • Capacity 10 liter
  • Check 15000 miles/ 24 months
A4 Avant quattro 2.0 TFSI (162 kW) (2013-2016)
  • Use: Normal
  • Capacity 10 liter
  • Check 20000 miles/ 24 months
A4 Avant quattro 2.0 TFSI (162 kW) (2013-2016)
  • Use: First check only
  • Capacity 10 liter
  • Check 15000 miles/ 24 months
S4 (245 kW) (2013-2016)
  • Use: Normal
  • Capacity 12 liter
  • Check 20000 miles/ 24 months
S4 (245 kW) (2013-2016)
  • Use: First check only
  • Capacity 12 liter
  • Check 15000 miles/ 24 months
A4 2.0 TFSI quattro (155 kW) (2010-2013)
  • Use: Normal
  • Capacity 7 liter
  • Check 20000 miles/ 12 months
A4 2.0 TFSI quattro (155 kW) (2010-2013)
  • Use: First check only
  • Capacity 7 liter
  • Check 15000 miles/ 12 months
A4 Avant quattro 2.0 TFSI (155 kW) (2010-2013)
  • Use: Normal
  • Capacity 7 liter
  • Check 20000 miles/ 12 months
A4 Avant quattro 2.0 TFSI (155 kW) (2010-2013)
  • Use: First check only
  • Capacity 7 liter
  • Check 15000 miles/ 12 months
S4 (245 kW) (2009-2013)
  • Use: Normal
  • Capacity 11,1 liter
  • Check 20000 miles/ 12 months
S4 (245 kW) (2009-2013)
  • Use: First check only
  • Capacity 11,1 liter
  • Check 15000 miles/ 12 months
A4 2.0 TFSI (155 kW) (2008-2013)
  • Use: Normal
  • Capacity 7-9 liter
  • Check 20000 miles/ 12 months
A4 2.0 TFSI (155 kW) (2008-2013)
  • Use: First check only
  • Capacity 7-9 liter
  • Check 15000 miles/ 12 months
A4 2.0 TFSI quattro (155 kW) (2008-2010)
  • Use: Normal
  • Capacity 7-9 liter
  • Check 20000 miles/ 12 months
A4 2.0 TFSI quattro (155 kW) (2008-2010)
  • Use: First check only
  • Capacity 7-9 liter
  • Check 15000 miles/ 12 months
A4 Avant quattro 2.0 TFSI (155 kW) (2008-2010)
  • Use: Normal
  • Capacity 7-9 liter
  • Check 20000 miles/ 12 months
A4 Avant quattro 2.0 TFSI (155 kW) (2008-2010)
  • Use: First check only
  • Capacity 7-9 liter
  • Check 15000 miles/ 12 months

Additional Notes

  • The Audi A4 2.0 TFSI (155 kW) variants share a cooling system capacity range of 7-9 liters across front-wheel-drive and early quattro configurations from 2008-2010, while the same 155 kW quattro models produced from 2010-2013 carry a fixed 7-liter figure. A capacity listed as a range rather than a single value typically reflects variation between body styles or minor production differences within the same engine family.
  • The 162 kW upgrade to the 2.0 TFSI engine, introduced across A4 sedan and Avant quattro configurations from 2013-2016, coincides with a jump to a 10-liter cooling system capacity. This increase over the 7-liter fixed figure of the preceding 155 kW quattro models suggests a larger or revised cooling circuit accompanying the power increase.
  • The Audi S4 (245 kW) carries the largest cooling system capacities in the lineup, at 11.1 liters for 2009-2013 models and 12 liters for 2013-2016 models. Higher-displacement or higher-output engines generally require greater coolant volume to manage increased thermal loads, which aligns with the S4's supercharged 3.0-liter V6 architecture.
  • Across all 155 kW A4 configurations from 2008-2013, the standard check interval is set at 20,000 miles or 12 months under normal use conditions. The 12-month time limit means the coolant condition is evaluated at least once per year regardless of mileage accumulated.
  • A first-check-only interval of 15,000 miles or 12 months applies to all 155 kW A4 variants. A first-check interval is an earlier single inspection point, separate from the recurring normal schedule, intended to verify coolant condition after initial break-in or after a system service.
  • The 162 kW A4 and both S4 (245 kW) generations from 2013-2016 extend the time component of the normal check interval to 24 months, compared to the 12-month limit on earlier 155 kW configurations. The mileage trigger of 20,000 miles remains unchanged across all configurations, so the difference lies entirely in the calendar-based limit.
  • The first-check-only interval for 162 kW A4 and 2013-2016 S4 models is set at 15,000 miles or 24 months, mirroring the same 24-month time extension seen in the normal interval for those configurations. Earlier 155 kW models pair the same 15,000-mile first-check trigger with a shorter 12-month window.
  • The S4 (245 kW) from 2009-2013 carries an 11.1-liter cooling system capacity, while the 2013-2016 version of the same power output increases to 12 liters. Both model years share identical check intervals, so the capacity difference between the two S4 generations is not accompanied by any change in service frequency.

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