When this component fails, it disrupts the timing of your engine, leading to poor performance and frustrating warning lights on your dashboard. What Does DF057 Mean?
In Renault’s diagnostic system, DF057 specifically points to an issue with the .
Remove the single 10mm bolt holding the solenoid in place and pull it out. Inspect the metal gauze/filter. If it is covered in black sludge, clean it with brake cleaner and re-test. 4. Check the Dephaser Pulley
If the reading is "OL" or 0, the solenoid is dead and must be replaced. 3. Physical Cleaning
: If the wiring is intact, the sensor itself likely needs cleaning or replacement.
Cheap aftermarket solenoids often fail within months. Stick to OEM Renault or Pierburg parts. To help you get this fixed, could you tell me: Does your car make a rattling noise when you start it? What engine size do you have (e.g., 1.6 16v or 2.0)? Have you recently had a timing belt change?
On the Mégane II (especially 1.5 dCi and 1.9 dCi engines), glow plugs are a wear item. If one or more plugs have failed (open circuit), the control unit detects the lack of current draw and triggers DF057.
, possibly with EGR off and +25hp / +50Nm.