Repairs via repertures

Hello everyone, I’ve been driving my Ka for a little more than 3 years now. It’s built in 2012, EZ: was in March 2013, had at purchase in September 2017 almost 55,900 km. When bought the oil tank was changed and I got a new exhaust. During this time I have had the following repairs: -Tight belts were changed -Tightness 2x re-learned, then replacement of the petrol hose – new V-belt track rods were made gaitable – new wheel suspension -new Cross handlebar -new air condenser -new exhaust -new oil pressure switch -new air conduit In July last year it showed me the error, error on the oil pressure sensor, then I got the new oil pressure switch. Saturday again the message, error on the oil pressure sensor. Meanwhile it swallows itself also when starting and the speed turns to 2500 high and drops. Recently this went play 4 times and then it was off. In 3 years I have almost 3,000 Euro in my car My car is in the workshop every 3 to 4 months, because something else is broken. My workshop says now, the error “error to the oil pressure sensor” is a sporadic error message. Can be due to the cold, or I should drive a longer distance. That can’t be all, can it? Also all the repairs in 3 years. That a car has wear, ok.