The particle filter is a pretty modern technology that aims to remove harmful particles from the exhaust gases of modern diesels. It has long been discovered as the miracle solution to these pollution problems. Nevertheless, it doesn’t work as well as designed and triggers more problems than it resolves, which is why we will discover today when changing the particulate filter of a Subaru Impreza? . To get this done, to begin with, we will find out what the particle filter on your motor vehicle is used for, and then when to replace the particle filter on your Subaru Impreza.
What’s the point of a Subaru Impreza’s particulate filter?
So we start our guideline with the explanation for this element recently integrated into diesel automobiles. As we explained briefly in the introduction, the goal of this filter was to solve the problems of pollution and harmfulness of exhaust gases from Subaru Impreza automobiles. Its working concept is to store exhaust gases that are unburned or that still contain harmful particles, and when it is at a adequately high temperature to trigger a second combustion that will finish burning and get rid of all these carcinogenic particles. Unfortunately, to reach this very high engine temperature, you have to be on the highway or have your Subaru Impreza engine revving up. So we have discovered as time passes that vehicles that are principally on short trips or in the city do not allow the particulate filter to burn these gases and we will discover in the next part that these problems can force you to replace the particulate filter of your Subaru Impreza .
When to replace the particulate filter of a Subaru Impreza?
In this section we will find out what you are clearly attracted to here, if it is required to replace the particulate filter of a Subaru Impreza and if so, when?
Is it required to replace the particulate filter on Subaru Impreza?
There are 2 types of particulate filter for vehicles, a particulate filter with additive, which does not matter the Subaru Impreza, but which needs to be recharged every 120, 000km with an additive that enables the regeneration of the particulate filter and consequently to burn all those harmful soot. The second one, the one we are enthusiastic about in this article, functions with precious metals that will generate a chemical reaction at high temperature and trigger the regeneration of the filter and the evacuation of the carcinogenic materials. Nevertheless, as explained earlier, it needs very high temperatures, if these are not reached the filter will clog. If the filter is not regenerated manually, drive at high speed for about 20 minutes to reach this temperature and thus regenerate your filter, you will clog it and risk damaging your turbo, your EGR valve or your engine. If you need to clean the EGR valve of your Subaru Impreza because of your particulate filter, do not think twice to look at our content on this subject to find out what the process is.
When to replace the particulate filter of a Subaru Impreza?
As we revealed before, a particulate filter is supposed to last the life of the car, nevertheless some of you may possibly wonder when it is required to replace the particulate filter of its Subaru Impreza? Be aware that this component is extremely expensive, labor is not the main problem because it is easy to access. But the part itself will vary enormously in price based on your motorization, you can still count a range between 700 and 2000€. This replace should just be considered in the circumstance of a completely clogged particle filter. If you don’t regularly take the motorway, we recommend you, every month to drive 10 minutes on the motorway at least 3000 rpm . In spite of everything, the current particulate filter have not been well designed and remain troublesome, it is considered that because of the lack of a sufficiently regular temperature rise and other design problems, you should start planning to replace your particulate filter from 200, 000km if you have a use of your XX that is more urban and a little more if it is mixed .
To get more tips on the Subaru Impreza, take a look at the Subaru Impreza category.
