Crankcase Capacity
WARNING: This page is about a different car, the 1985 Volkswagen Quantum. However, it is still accessible from the selected car via links, so may be relevant.
On 5000S and 5000 Turbo models, capacity is either 5.0 qts. 4.5L) with filter replacement or 4.5 qts. (4.0L) if filter is not replaced. On Coupe GT, Quantum and 4000S Quattro models, capacity is either 3.7 qts. (3.5L) with filter replacement or 3.2 qts. (3.0L) if filter is not replaced.
NOTE:
Whenever turbocharger is replaced or rebuilt, engine oil and BOTH oil filters must be replaced.