The in a Renault Clio 1.5 dCi is a diagnostic trouble code specifically linked to fuel rail pressure regulation . It indicates that the Engine Control Unit (ECU) has detected fuel pressure that is either too high or too low compared to its programmed targets.
Drivers may notice several warning signs when this code is triggered: 1.5dci engine not starting - ClioSport.net Brigsy said:More to it than just the code. ClioSport.net Renault DF137 Error: Q&A for Renault 1.5 dCi, Clio, Kangoo
Often caused by leaks, a clogged fuel filter, or failing injectors.
Typically points toward a faulty fuel pressure regulator or a blocked return line. DF137.DEF: General regulation function failure. Common Symptoms
Understanding this code is vital for maintaining the performance of the common-rail diesel system, as it often causes the vehicle to enter "limp mode," cut out, or fail to start entirely. Meaning and Sub-Codes
The DF137 code is rarely seen alone; it typically includes a suffix that clarifies the exact nature of the pressure deviation:
