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

Transfer case fluid capacity & service interval

Audi A4, S4, RS 4 Cabriolet, 8H / B7 (USA) models require 0,55 liter of transfer case fluid. Service intervals include checks at 20000 miles/ 12 months or 15000 miles/ 12 months. The data covers 4 configurations.

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

TypeSpecifications
  • A4 Cabriolet 2.0 quattro (147 kW) (2005-2008)
  • From automatic
  • Use: Normal
  • Capacity 0,55 liter
  • Check 20000 miles/ 12 months
  • A4 Cabriolet 2.0 quattro (147 kW) (2005-2008)
  • From automatic
  • Use: First check only
  • Capacity 0,55 liter
  • Check 15000 miles/ 12 months
  • A4 Cabrriolet 3.2 quattro (188 kW) (2005-2008)
  • From automatic
  • Use: Normal
  • Capacity 0,55 liter
  • Check 20000 miles/ 12 months
  • A4 Cabrriolet 3.2 quattro (188 kW) (2005-2008)
  • From automatic
  • Use: First check only
  • Capacity 0,55 liter
  • Check 15000 miles/ 12 months

Additional Notes

  • All four transfer case fluid entries across the 2005-2008 Audi A4 Cabriolet quattro lineup share a capacity of 0.55 liter, which is a relatively small fill volume consistent with a compact transfer box unit rather than a larger drivetrain assembly.
  • The 2.0 quattro (147 kW) and 3.2 quattro (188 kW) variants both carry the same 0.55 liter capacity, indicating no difference in transfer case fluid volume between the two engine configurations.
  • Both engine variants specify a normal-use check interval of every 20,000 miles or 12 months, whichever comes first, applied to the transfer box fluid level.
  • A separate first-check-only interval of 15,000 miles or 12 months is specified for both the 2.0 quattro and 3.2 quattro, meaning the initial fluid inspection occurs earlier than subsequent routine checks.
  • All entries are noted as applying to the transfer box sourced from an automatic transmission configuration, meaning the intervals and capacity listed are specific to that drivetrain pairing.

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