The particle filter is a pretty modern invention that aims to take out harmful particles from the exhaust gases of modern diesels. It has long been seen as the miracle solution to these pollution problems. Nevertheless, it doesn’t work as well as designed and causes more problems than it resolves, which is why we will discover today when changing the particulate filter of a Subaru Forester? . To do this, to begin with, we will find out what the particle filter on your car is utilized for, and then when to change the particle filter on your Subaru Forester.
What’s the purpose of a Subaru Forester’s particulate filter?
So we start our content page with the explanation to do this element not too long ago integrated into diesel vehicles. As we described briefly in the introduction, the intent of this filter was to resolve the problems of pollution and harmfulness of exhaust fumes from Subaru Forester vehicles. Its functioning principle is to store exhaust fumes that are unburned or that still contain harmful particles, and when it is at a sufficiently high temperature to cause a second combustion that will finish burning and get rid of all these carcinogenic particles. Sadly, to reach this very high engine temperature, you have to be on the highway or have your Subaru Forester engine revving up. So we have realized with time that cars that are specifically on short trips or in the city do not enable the particulate filter to burn these fumes and we will discover in the next section that these problems can force you to change the particulate filter of your Subaru Forester .
When to change the particulate filter of a Subaru Forester?
In this section we will find out what you are most definitely drawn to here, if it is required to change the particulate filter of a Subaru Forester and if so, when?
Is it required to change the particulate filter on Subaru Forester?
There are 2 types of particulate filter for cars, a particulate filter with additive, which does not concern the Subaru Forester, 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 keen on today, works with precious metals that will produce a chemical reaction at high temperature and cause the regeneration of the filter and the evacuation of the carcinogenic materials. Nevertheless, as described 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 Forester because of your particulate filter, do not think twice to check out our content page on this subject to find out what the process is.
When to change the particulate filter of a Subaru Forester?
As we described just before, a particulate filter is designed to last the life of the car, nevertheless some of you may possibly wonder when it is required to change the particulate filter of its Subaru Forester? Be aware that this component is extremely expensive, labor is not the main problem because it is easy to access. But the component itself will vary enormously in price based on your motorization, you can still count a range between 700 and 2000€. This change should just be considered in the circumstance of a completely clogged particle filter. If you don’t frequently take the motorway, we suggest 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 problematic, it is considered that because of the lack of a sufficiently regular temperature rise and other design problems, you should start planning to change 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 .
In the event that you have any additional questions about the Subaru Forester, do not hesitate to consult our Subaru Forester category.
