Encyclopedia of engines: Renault 1.5 dCi (diesel)

Initially, he had bad reviews, but long experience in the market and good knowledge among mechanics corrected them. This engine has almost the same operational advantages, although the design is not perfect. He deserved the title of a hit, because he was used in many models of various brands. What is the truth about this unit?

This engine was a response to a market that had been absorbing common rail diesels since around 2000. The small unit developed by Renault debuted in 2001. Despite its low power, it produces enough parameters to power a compact or even a truck, although it was also placed under the hood, for example, a large Lagoon. Numerous versions and design variations make it difficult to talk about this engine as a whole, but the rule is that the lower the power and the year of manufacture, the simpler the design (for example, without a dual-mass and particulate filter), cheaper to repair, but more defects. , and the younger the engine and the higher the power, the better it is being finalized, but also more difficult and expensive to repair.

The main problem of this unit is the injection system., initially very sensitive to low-quality fuel. Injector failures were common, and the fuel pump also beat (Delphi system). The situation was greatly improved by the Siemens injection. In addition, since 2005, a DPF filter has appeared in some variants. It has had bad times, although overall it is one of the best on the market.

The most expensive repair is related to the injection system, but potential buyers are most afraid of it inflated socket blur problem. Many engines have been repaired or scrapped for this reason. The root cause of the problem (along with the poor quality of the material) was long intervals between oil changes.

At present, the acetabulum should not be a big concern., because engine underbody regeneration kits (even with crankshaft) are very cheap and we are talking about quality replacements and original parts. Up to 2-2,5 thousand. PLN, you can buy a kit with gaskets and an oil pump. The bearings themselves should be replaced prophylactically after purchase, if the motor already has a high mileage.

So many problems are easy to miss very good engine performancesuch as high work culture, good performance of the 90 HP version. and sensationally low fuel consumption. In this regard, the engine is so good that it is still used by Renault and Nissan, as well as Mercedes. Interestingly, this design is so successful that it even replaced ... its successor - the 1.6 dCi engine.

Advantages of the 1.5 dCi engine: