Drive the Scenic for 6 years. All customer service at Renault since then in order to be bold and guarantee. After 4 years then timing belt change was due. The workshop demanded 800€. A friend of mine worked at Renault at the time, but in another place. He suggested that he would repair my vehicle at the weekend for 450€ (dental belt, water pump etc ). For 2 years the car runs perfectly. Has it done great. Unfortunately I no longer have any contact with this mechanic since he When I drove to my Renault dealer, I was told that the camshaft adjuster was defective and that timing belt changes had to be made again. I went to a free workshop and they changed the ignition coil and the car ran again without problems. Now again for a few weeks the Scenic is jerking at half-gas. Renault dealer closed the vehicle to the tester and says camshaft adjuster and timing belt changes 800€. In the beginning it was called camshaft adjuster. Also connected there to the engine tester. Bosch Service demanded 360€ for the reperture. No talk about timing belt lizard. I agreed to the reperture. When I came to pick up the car I was very surprised. The master said that everything was fine on the vehicle. It had to be an electronic problem. I had to pay nothing. Apparently, everyone was checked. They thought I should try driving it would be according to the mechanics It was much better than before, but not like before. The car used to run like on velvet. It’s a garage car and very well maintained. It only has 58000Km. The jerking is now less and less. The performance is somehow lacking. I think about driving another Renault workshop. My previous dealer has been making the timing belt somewhere else a little different. He always wants to change the timing belt. Has one a tip.