Volvo XC60 engine damage, residual value???

Now it has confirmed, our XC60 has probably a typical damage for the 205 HP D5. After changing the head seal it still blows CO2 into the cooling water. Either defect of the cylinder head or the hull itself. According to experience of the workshop (-chain) it is more the fuselage itself. We will invest nothing more and want to sell it now. The question is now, what can you ask for? Display at mobile is free but what do I specify as VB? Without damage they will be from approx. 14,000 € Data: XC60 D5 AWD Summum, EZ: 05/2011 (one of the last with 205 HP), xenium package, rear-view camera, AHK, white, hand switch, Navi (update to future free card updates made), high performance multimedia, 212,000 km, head seal new ( ), some time ago (think about 200,000 km the springs on the front axle were made new with shots (break). I have also changed brakes at the rear (slices and coverings), but is certainly already 30,000 km ago. In the Volvo – Forum on Facebook I have already asked what I want to have. However, I have no idea at all!