Audi A4, S4, 8W (USA)

Transfer case fluid capacity & service interval

Audi A4, S4, 8W (USA) transfer case fluid capacity is 1 liter. Service intervals consist of a check every 20000 miles or 24 months. The data covers 2 configurations.

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

TypeSpecifications
S4 3.0 TFSI quattro (260 kW) (2018- )
  • Use: Normal
  • Capacity 1 liter
  • Check 20000 miles/ 24 months
S4 3.0 TFSI quattro (260 kW) (2016-2018)
  • Use: Normal
  • Capacity 1 liter
  • Check 20000 miles/ 24 months

Additional Notes

  • The Audi S4 3.0 TFSI quattro (260 kW) transfer case holds 1 liter of fluid, which is a typical capacity for a compact transfer box unit in a longitudinally mounted all-wheel-drive system.
  • The 1-liter capacity figure applies to a service fill context, meaning the amount expected during a routine fluid check or top-up rather than a full drain-and-refill overhaul procedure.
  • The specified check interval for the transfer case fluid is every 20,000 miles or 24 months, whichever comes first, under normal use conditions.
  • The 2016-2018 and 2018-onward S4 3.0 TFSI quattro configurations share an identical transfer case fluid capacity of 1 liter and the same 20,000-mile or 24-month check interval under normal use.

Other Systems