Audi 90, B4 / 8C (USA)
Coolant capacity & service interval
Audi 90, B4 / 8C (USA) coolant specifications cover a capacity of 11 liters. The data includes two configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| 90 2.8 V6 (128 kW) (1993-1995) |
|
| 90 2.8 V6 quattro sport (128 kW) (1993-1995) |
|
Additional Notes
- The Audi 90 B4/8C (USA) 2.8 V6 and 2.8 V6 quattro sport share an identical cooling system capacity of 11 liters, applying to both configurations across the 1993-1995 model years.
- An 11-liter cooling system capacity is relatively substantial for a passenger car of the era, reflecting the thermal demands of the 128 kW V6 engine and the volume of coolant required to circulate through the block, cylinder heads, and radiator circuit.
- Both rows carry a normal use condition tied to the 11-liter capacity figure, meaning the specification applies under standard operating conditions rather than a severe-duty or first-fill scenario.
- The capacity value of 11 liters represents a full cooling system fill, accounting for the radiator, engine block passages, heater core circuit, and expansion reservoir, rather than a partial drain-and-refill service quantity.