The particle filter is a quite recent technology that is designed to remove 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 expected and triggers more problems than it solves, which is why we will discover on this page when changing the particulate filter of a Audi S3? . To get this done, to begin with, we will find out what the particle filter on your motor vehicle is utilized for, and then when to replace the particle filter on your Audi S3.
What’s the point of a Audi S3’s particulate filter?
So we begin our article with the rationale to do this component recently included into diesel vehicles. As we outlined quickly in the introduction, the goal of this filter was to resolve the problems of pollution and harmfulness of exhaust fumes from Audi S3 vehicles. Its operating concept is to store exhaust fumes that are unburned or that still contain harmful particles, and when it is at a adequately 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 Audi S3 engine revving up. So we have realized as time passes that cars that are principally on short trips or in the city do not allow the particulate filter to burn these fumes and we will see in the next section that these problems can force you to replace the particulate filter of your Audi S3 .
When to replace the particulate filter of a Audi S3?
In this section we will find out what you are clearly drawn to here, whether it is necessary to replace the particulate filter of a Audi S3 and if so, when?
Is it necessary to replace the particulate filter on Audi S3?
There are 2 types of particulate filter for cars, a particulate filter with additive, which does not matter the Audi S3, but which needs to be recharged every 120, 000km with an additive that allows the regeneration of the particulate filter and consequently to burn all those harmful soot. The second one, the one we are keen on today, functions with precious metals that will create a chemical reaction at high temperature and cause the regeneration of the filter and the evacuation of the carcinogenic materials. Nevertheless, as described above, 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 Audi S3 due to your particulate filter, do not hesitate to look at our content on this subject to find out what the procedure is.
When to replace the particulate filter of a Audi S3?
As we explained just before, a particulate filter is designed to last the life of the car, however some of you might wonder when it is necessary to replace the particulate filter of its Audi S3? Be aware that this part is extremely expensive, labor is not the most important 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 only be considered in the case of a completely clogged particle filter. If you don’t regularly take the motorway, we advise 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 due to 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 .
If you want more tutorials on the Audi S3, go to our Audi S3 category.
