The particle filter is a pretty new invention that is designed to take out harmful particles from the exhaust gases of modern diesels. It has long been discovered as the miracle solution to these pollution complications. However, it doesn’t work as well as designed and triggers more complications than it handles, which is why we will discover on this page when changing the particulate filter of a Audi A7? . To do this, first of all, we will identify what the particle filter on your motor vehicle is utilized for, and then when to change the particle filter on your Audi A7.

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What’s the point of a Audi A7’s particulate filter?

So we begin our article content with the rationale for this element not too long ago built in into diesel vehicles. As we described quickly in the introduction, the aim of this filter was to fix the complications of pollution and harmfulness of exhaust fumes from Audi A7 vehicles. Its functioning 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. Unfortunately, to reach this very high engine temperature, you have to be on the highway or have your Audi A7 engine revving up. So we have discovered as time passes that cars that are mainly on short trips or in the city do not enable the particulate filter to burn these fumes and we will observe in the next section that these complications can force you to change the particulate filter of your Audi A7 .

When to change the particulate filter of a Audi A7?

In this section we will identify what you are certainly attracted to here, whether it is necessary to change the particulate filter of a Audi A7 and if so, when?

Is it necessary to change the particulate filter on Audi A7?

There are 2 types of particulate filter for cars, a particulate filter with additive, which does not matter the Audi A7, 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 interested in 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. However, as mentioned above, it requires 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 A7 due to your particulate filter, do not think twice to check out our content on this subject to identify what the process is.

When to change the particulate filter of a Audi A7?

As we revealed just before, a particulate filter is designed to last the life of the vehicle, however some of you might wonder when it is necessary to change the particulate filter of its Audi A7? Be aware that this part is extremely expensive, labor is not the main issue 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 only be considered in the circumstance of a completely clogged particle filter. If you don’t repeatedly 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 troublesome, it is considered that due to the lack of a sufficiently regular temperature rise and other design complications, 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 .

Whenever you have any further questions about the Audi A7, do not hesitate to consult our Audi A7 category.