2008 Vauxhall Antara S Cdti Low Milage 90K

I am selling my Vauxhall Antara S Cdti car, the gearbox and engine work perfectly, I drive it every day, it looks good inside and out, the tires are almost new, mot 350 days, tax paid, full service history, 2 keys, but it smokes a little, I don't have time to take it to a . mechanic, but more details circulate to him in private every day