The particle filter is a pretty new technology that is designed to take out harmful particles from the exhaust gases of latest diesels. It has long been discovered as the miracle solution to these pollution complications. However, it doesn’t work as well as intended and triggers more complications than it handles, which is why we will discover on this page when changing the particulate filter of a Citroen C4? . To get this done, first of all, we will identify what the particle filter on your car is utilized for, and then when to change the particle filter on your Citroen C4.


What’s the point of a Citroen C4’s particulate filter?

So we commence our content with the reason for this element not too long ago integrated into diesel automobiles. As we mentioned quickly in the introduction, the aim of this filter was to solve the complications of pollution and harmfulness of exhaust gases from Citroen C4 automobiles. Its operating principle is to store exhaust gases 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 unit temperature, you have to be on the highway or have your Citroen C4 engine unit revving up. So we have discovered with time that cars that are principally on short trips or in the city do not enable the particulate filter to burn these gases and we will observe in the next part that these complications can force you to change the particulate filter of your Citroen C4 .

When to change the particulate filter of a Citroen C4?

In this section we will identify what you are clearly drawn to here, whether it is required to change the particulate filter of a Citroen C4 and if so, when?

Is it required to change the particulate filter on Citroen C4?

There are 2 kind of particulate filter for cars, a particulate filter with additive, which does not concern the Citroen C4, 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, 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. However, 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 unit. If you need to clean the EGR valve of your Citroen C4 due to your particulate filter, do not think twice to check out our content on this subject to identify what the procedure is.

When to change the particulate filter of a Citroen C4?

As we explained before, a particulate filter is supposed to last the life of the vehicle, nevertheless some of you might wonder when it is required to change the particulate filter of its Citroen C4? Take note that this component is extremely expensive, labor is not the main issue because it is easy to access. But the part itself will vary enormously in price depending on your motorization, you can still count a range between 700 and 2000€. This change should only be considered in the case 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 due to the lack of a sufficiently frequent temperature rise and other design complications, you should begin 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 .

To get more tips on the Citroen C4, take a look at the Citroen C4 category.