Hi Anne,
It will depend on its mileage to a large extent. As a 140hp 2.0 TDI Sportsline Golf, it's desirable but if it has more than 200,000km on the clock, its value will be pegged at €3,500-€4,000. If it has less than 120,000km, however, it could be worth more like €5,500-€6,250.