Maintenance cost around 6 to 7k i think i haven't done yet because my ODO reading is 4k atm but soon i am going for my 5k service. Do only things which are mention in your maintenance book , Don't go for any extra work they will advice you do this do that so instruct them before dont do any extra work without my knowledge other wise i am not gonna pay a single penny . on 5k just Oil change , Air filter, Oil filter , Clean plugs , fluide check , Nuts bolts check , engine tuning