Hi Charlie,

The 1.9 TDI is an older engine in the Audi A4, but without knowing its exact year, specification and condition, we can’t give you a precise figure. If it’s a late 2008 car with around 125,000km on it and in excellent condition, it might be worth around €7,000; on the other hand, if it’s an early 2000s car with 200,000km on the clock and more, you might only be looking at €650 to €1,000.