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fault code on a Renault Clio 1.5 dCi specifically indicates a Rail Pressure Regulation Function
1. The Most Common Culprit: The Solenoid Valve
K9K 792
The 1.5 dCi engine (Renault code: K9K) is one of the most successful diesel engines in automotive history, produced in millions of units across Renault, Nissan, Dacia, Mercedes-Benz (A-Class), and Smart vehicles. The DF137 uses the or K9K 796 variant (depending on Euro 3/Euro 4 emissions standards).
DF137
The specifically refers to the Renault Clio IV (Phase 2) – produced roughly between 2016 and 2019. While the Clio IV launched in 2012, the DF137 variant arrived with the mid-life facelift.