The Bosch piezo injectors used in some versions can be troublesome. They are expensive to replace and require coding to the car’s ECU if changed. J Brima Hina Bella In Pool Heaven On Earth Mp... Apr 2026
Based on the part number , you are likely looking for a review of the Renault 1.5 dCi Engine , specifically the K9K engine block. In many aftermarket catalogs (such as those from FPS, Valeo, or Radiators), "DF417" is a common reference number for the radiator or engine assembly associated with this specific engine variety. Centurion Bp-12 Problems →
Here is a review of the Renault 1.5 dCi engine (often referenced by parts like the DF417). Verdict: A highly efficient and reliable workhorse, provided it has been meticulously maintained.
Because of its small displacement and low CO2 emissions, road tax is usually very cheap, and insurance grouping tends to be reasonable for cars fitted with this engine. The Bad 1. Turbocharger Failures (Early Models) On models produced before roughly 2007-2008, turbo failures were common. This was often due to oil starvation caused by a clogged particle filter or poor oil maintenance. Renault addressed this in later years by improving the oil feed pipes and filtration.
While early versions had flaws, the 1.5 dCi evolved into a very durable unit. If you are looking at a car manufactured after 2010 (Euro 5 compliant), the internal components were strengthened, making the engine capable of reaching 200,000+ miles without major mechanical failure.
The 1.5 dCi engine is one of the most successful diesel engines produced by Renault, used widely in models like the , as well as some Nissan models (like the Micra and Note). The Good 1. Outstanding Fuel Economy This is the engine’s selling point. It is incredibly frugal. In a Clio or Megane, it is not uncommon to achieve 60–70+ mpg (UK) on motorways. For high-mileage drivers, the fuel savings are significant.
The Exhaust Gas Recirculation (EGR) valve is prone to clogging with soot, especially if the car is driven mostly on short trips around town. This can cause the engine to enter "limp mode." Drivers report symptoms like hissing sounds from the turbo or power loss when this occurs.
Despite being only 1.5 liters, the turbo provides useful low-down torque. It feels peppy in town and adequate on the motorway, though it isn't a performance engine. It is perfectly suited for small to mid-sized family cars.