Car service
€ 600 is a complete rip off for a service. Are you sure that it was a standard 'full service'? What parts did they replace. Normally, a full service would cost € 150 to € 200, depending on type and year of car. Service includes change oil, replace oil filter, replace air filter, change spark plugs, tighten hand brake, remove all wheels and check brake pads / disks, check all pipes / hoses for wear and tear, top up all fluids, check lights / bulbs , check fuel filter, adjust idle timier etc. Some would tune engine but not all.
Ps