Good morning.
The coil, or coils, of a vehicle is an electric piece that during its operation is subjected to high electricity discharges and very heat which facilitates its deterioration due to the effort to which it is subjected. In your case it is not a problem of deterioration of the piece itself, but a manufacturing defect of the K4M engines (14. 16V) engines. Renault has a technical workshop note regarding this breakdown, the solution is to replace the 4 coils with other modified.
You will wonder why the 4 coils did not change the first time. It can be for two reasons:
- The first and most important thing is that they changed them because you have an extended guarantee. The expanded guarantees do not depend on Renault, but on private insurance companies to which you have to request authorization to do the work on the car, if the insurer does not authorize it, it is not done. It is not done because but not charged.
- The second is that the mechanic who did the repair was a patán or someone in practice, something very common in official dealers. If ten people are template; Only one has adequate knowledge of mechanics and electronics, the rest are \ "Cambiaceites \" or kids in practices.ç
Greetings.