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Joined 02-21-20, id: 13145042, Profile Updated: 02-21-20
The intricacy of diesel engines to satisfy emissions regulations and fuel with a greater portion of biodiesel produce more failures and breakdowns.

Although diesel autos are not going through their best moment, there are still numerous motorists who have one, or they are contemplating acquiring it, well, let's see what their most frequent faults are and what we can do to prevent them. The first thing we must understand and remember is that today's diesel is far from the old diesel.

The greater complexity of modern-day diesel engines and fuels with greater percentages of biodiesel create a series of failures in this type of engine. In the article, we will discuss its causes and how to prevent them as much as possible. To make things clearer, we will separate the main faults into two big groups: those caused by anti-pollution systems and those caused by fuels.


As all of us understand, over night, anti-pollution policies have changed from night to day, and vehicle makers have forced to vary the exhaust systems significantly. Where before we had a collector, an intermediate flask, and a silent back, today we have a series of extra aspects such as drivers, extra injectors, switchboards, wiring, and so on, so that reasoning makes us reach the following conclusion: the more components, the higher the possibility of breakdown.

We will focus on the 3 most fragile components or with the highest failure rate.


Its function is to trap the carcinogenic particles discharged by diesel engines and are relatively efficient in this; Nevertheless, its installation entails a series of civilian casualties.

The greatest problem with this component is that most of cars circulate the city, which suggests that complete cycles of system regeneration can not perform, which implies the blockage of said filter and that the check engine light begins", With the subsequent visit to the workshop. The expense of this piece can vary from 300 dollars to more than 1,500 dollars, depending upon the producer and the brand name.


SCR catalysts to lower NOx emissions require the setup of an additional tank with the urea additive and a complex management system that injects this additive into the exhaust stream in the precise percentage for the chemical reaction to occur and the catalyst reduce the effects of these harmful gases.

The three components most vulnerable to failure in this system are the additive titrator, the injector, and the catalyst. As a possible option to these failures, we will state that what works best is to provide unlimited freedom to our engines and take them out of the city with relative assiduity. Given that our particle filter will thank us, the whole system will clean up, we will form automatic regrowths by the vehicle and eventually extend the dreadful check out to the workshop.

The main elements that usually stop working due to the quality of fuel in diesel cars are:


Regarding auto maintenance tips, you could learn on the official website.
They work with really high pressures, and their lower lubricating power erodes their internal parts and the holes of the nozzles so that they stop spraying the fuel well and also put a lot into the return circuit. Its cost varies considerably depending on the manufacturer and the kind of injector, ranging from 240 dollars to 800 dollars on some electrical piezo type models.


Another aspect that likewise normally stops working due to absence of lubrication is high-pressure pumps that raise the two or three bars to those that get diesel from the tank to 2,000-2,500 bars of the working pressure in the injection ramp. Your change will make us pay between 150 to 500 dollars around.