For those that are in a hurry and interested in the conclusion only, I start with this one:
Buying a Renault car, it is very likely to have obvious technical issues not fixed by the service, while Renault, up to the worldwide entity, tells you that everything is fine.
Hope you will find useful the information in this car review about Renault, especially if you want to buy a car.
I purchased this Renault Fluence from an authorized car dealer in Romania. From the beginning, when activating the windshield washing system, the wipers make a full turn on the dry glass and only then comes the washing liquid. Therefore, added to the very unpleasant noise, the blades become blunt and don't clean as they are supposed to. Also, the windshield can suffer from light scratches.
I highlighted the issue to the service. They were very reluctant and coming with foolish explanations, but in the end they agreed to take a look and admitted there was indeed something wrong. They said a new liquid pump was required, so they changed it. When they called me to pick up the car, saying it was fixed, the issue was exactly the same. Looking into it again, they confirmed the issue, but said that all Renault cars have it and there is nothing they could do about it.
As a result, I contacted Renault Romania (email@example.com) and was asked to come back to the service. So I did and a person there filmed the issue while it was happening, saying he would send it for analysis at a higher level. As a note, he also agreed that the situation was not right. Few days later, Renault Romania came back to me saying the system works fine.
For the next step, I made a complaint to Renault Worldwide. The response back came from the same person in Renault Romania, saying the same thing as before. Renault Worldwide did not even bother to read about the issue, but instead they forwarded the request to the same person that I was complaining about.
This was the first and the last time when I buy Renault cars.
Topic moved to the technical part of the forum and title edited in line with the forum's policy