Renault Df417 [LIMITED · 2026]

If you have been shopping for a used Renault, Nissan, Mercedes-Benz A-Class, or even a Dacia, you have almost certainly encountered the engine code DF417 . It is one of the most common variants of the legendary Renault K9K engine family (1.5-liter dCi).

The DF417 is a brilliant economic engine. It returns hybrid-like fuel economy without hybrid complexity. The timing chain is a huge reliability win over a belt. renault df417

The injector can jump out of its bore, causing massive diesel leaks, engine runaway, or complete loss of compression. If you have been shopping for a used

– Fantastic economy, good torque, but requires proactive maintenance and knowledge of its quirks. Do you own a car with the DF417? Share your experience (good or bad) in the comments below. – Fantastic economy, good torque, but requires proactive

However, it is not bulletproof. The injector clamp issue is a design flaw, and the turbo actuator problem is common. If you can find one where both have been fixed (or you budget for them), the DF417 will run happily past 200,000 miles.