Audi A7, S7, RS 7, 4G (USA)

Transfer case fluid capacity & service interval

Audi A7, S7, RS 7, 4G (USA) transfer case fluid capacity ranges from 0,85 to 1 liter. Service intervals include checks at 10000 miles/12 months, 15000 miles/24 months, and 20000 miles/24 months. The data covers 18 configurations.

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

TypeSpecifications
A7 3.0 T quattro (250 kW), 4GF (2017-2018)
  • Use: Normal
  • Capacity 1 liter (Initial fill)
  • Capacity 0,85 liter (Refill)
  • Check 20000 miles/ 24 months
A7 3.0 T quattro (250 kW), 4GF (2017-2018)
  • Use: First check only
  • Capacity 1 liter (Initial fill)
  • Capacity 0,85 liter (Refill)
  • Check 10000 miles/ 12 months
RS 7 4.0 TFSI quattro (412 kW), 4GF (2017-2018)
  • Use: Normal
  • Capacity 1 liter (Initial fill)
  • Filter capacity 0,85 liter (Refill)
  • Check 20000 miles/ 24 months
RS 7 4.0 TFSI quattro (412 kW), 4GF (2017-2018)
  • Use: First check only
  • Capacity 1 liter (Initial fill)
  • Filter capacity 0,85 liter (Refill)
  • Check 10000 miles/ 12 months
A7 3.0 T quattro (245 kW), 4GF (2015-2017)
  • Use: Normal
  • Capacity 1 liter (Initial fill)
  • Capacity 0,85 liter (Refill)
  • Check 20000 miles/ 24 months
A7 3.0 T quattro (245 kW), 4GF (2015-2017)
  • Use: First check only
  • Capacity 1 liter (Initial fill)
  • Capacity 0,85 liter (Refill)
  • Check 15000 miles/ 24 months
A7 3.0 TDI quattro (176 kW), 4GF (2015-2017)
  • Use: Normal
  • Capacity 1 liter
  • Capacity 0,85 liter (Refill)
  • Check 20000 miles/ 24 months
A7 3.0 TDI quattro (176 kW), 4GF (2015-2017)
  • Use: First check only
  • Capacity 1 liter
  • Capacity 0,85 liter (Refill)
  • Check 15000 miles/ 24 months
RS 7 4.0 TFSI quattro (412 kW), 4GF (2015-2017)
  • Use: Normal
  • Capacity 1 liter (Initial fill)
  • Filter capacity 0,85 liter (Refill)
  • Check 20000 miles/ 24 months
RS 7 4.0 TFSI quattro (412 kW), 4GF (2015-2017)
  • Use: First check only
  • Capacity 1 liter (Initial fill)
  • Filter capacity 0,85 liter (Refill)
  • Check 15000 miles/ 24 months
A7 3.0 T quattro (228 kW), 4GA (2013-2015)
  • Use: Normal
  • Capacity 1 liter (Initial fill)
  • Capacity 0,85 liter (Refill)
  • Check 20000 miles/ 24 months
A7 3.0 T quattro (228 kW), 4GA (2013-2015)
  • Use: First check only
  • Capacity 1 liter (Initial fill)
  • Capacity 0,85 liter (Refill)
  • Check 15000 miles/ 24 months
A7 3.0 TDI quattro (176 kW), 4GA (2013-2015)
  • Use: Normal
  • Capacity 1 liter
  • Capacity 0,85 liter (Refill)
  • Check 20000 miles/ 24 months
A7 3.0 TDI quattro (176 kW), 4GA (2013-2015)
  • Use: First check only
  • Capacity 1 liter
  • Capacity 0,85 liter (Refill)
  • Check 15000 miles/ 24 months
RS 7 4.0 TFSI quattro (412 kW), 4GA (2013-2015)
  • Use: Normal
  • Capacity 1 liter (Initial fill)
  • Capacity 0,85 liter (Refill)
  • Check 20000 miles/ 24 months
RS 7 4.0 TFSI quattro (412 kW), 4GA (2013-2015)
  • Use: First check only
  • Capacity 1 liter (Initial fill)
  • Capacity 0,85 liter (Refill)
  • Check 15000 miles/ 24 months
A7 3.0 T quattro (228 kW), 4GA (2011-2013)
  • Use: Normal
  • Capacity 1 liter (Initial fill)
  • Capacity 0,85 liter (Refill)
  • Check 20000 miles/ 24 months
A7 3.0 T quattro (228 kW), 4GA (2011-2013)
  • Use: First check only
  • Capacity 1 liter (Initial fill)
  • Capacity 0,85 liter (Refill)
  • Check 15000 miles/ 24 months

Additional Notes

  • The transfer case initial fill capacity across all listed Audi A7, RS 7 configurations is 1 liter, while the refill capacity is 0.85 liter. The difference between the two figures reflects the volume of fluid that remains in the unit after a drain, meaning a partial refill restores the system to its operating level without requiring the full initial charge used when the transfer case is completely dry.
  • The Audi A7 3.0 T quattro (228 kW) in body variant 4GA covers two consecutive production windows, 2011-2013 and 2013-2015, both sharing identical capacity values and check intervals. The overlap at the 2013 model year corresponds to a mid-cycle production revision rather than a change in transfer case specification.
  • Under normal use conditions, all listed configurations carry a transfer case check interval of 20000 miles or 24 months, whichever comes first. The time-based limit of 24 months means the interval applies even when mileage accumulation is low, such as in vehicles driven infrequently.
  • A "first check only" condition appears alongside the normal interval for every listed configuration. For most configurations spanning 2011-2017, the first check interval under this condition is set at 15000 miles or 24 months, which is 5000 miles shorter than the standard recurring interval.
  • The A7 3.0 T quattro (250 kW) in variant 4GF for 2017-2018 carries a notably tighter first check interval of 10000 miles or 12 months, compared to the 15000 miles or 24 months seen in earlier configurations. Both the mileage and time thresholds are halved relative to the more common first check specification.
  • The RS 7 4.0 TFSI quattro (412 kW) in variant 4GF for 2017-2018 also uses a first check interval of 10000 miles or 12 months, matching the tighter schedule seen in the 250 kW A7 of the same production window rather than the 15000-mile interval used in the earlier 4GA and 4GF RS 7 configurations.
  • The RS 7 4.0 TFSI quattro (412 kW) specifications for the 4GF variant reference a "filter capacity" label on the 0.85-liter refill figure, whereas earlier 4GA entries for the same engine simply list the refill without that label. The filter capacity designation indicates the refill volume accounts for fluid retained within an internal filter element during a service drain.
  • The A7 3.0 TDI quattro (176 kW) entries do not carry an "Initial fill" label on the 1-liter capacity figure, unlike the petrol-engined configurations where that label is explicitly stated. The refill figure of 0.85 liter is labeled consistently across both diesel and petrol variants.

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