Hello and welcome. The vast majority of people here are in the US so guiding you to the value of your car in your locale is going to difficult.
That being said, similar car selling principles will apply.
- check private party ads for cars similar to yours, look at the details of each car and the asking price
- do the same for used car dealer vehicles. Expect those cars to be priced higher either because they have had some level of reconditioning, or because they can offer financing, and especially because they are for profit businesses and not charities.
- determine where your car stands compared to the cars for sale and figure what the asking price should be.
- if you price low will be quicker sale
- if you price high you might be waiting a while before it sells, particularly if there is nothing special about it such as rare equipment or recent maintenance, and if the car needs any kind of TLC or remedial work.
I have sold cars in a matter of hours by listing them on the low side and pointing the good things. Conversely it took seven months to sell a newish car that was in great condition but needed a special buyer (one who was looking for a manual trans and had cash or was clever enough to arrange financing.) I was getting ridiculous offers which I declined, I took the car off the market for a month, priced it 15% higher and then it sold for what I considered a fair deal to all. It usually comes down to time, money, and a bit of luck.