The particle filter is a pretty new technology that aims to take out harmful particles from the exhaust gases of latest diesels. It has long been seen as the miracle solution to these pollution problems. However, it doesn’t work as well as expected and causes more problems than it resolves, which is why we will find out today when changing the particulate filter of a BMW 7 Series? . To get this done, to begin with, we will find out what the particle filter on your car is utilized for, and then when to replace the particle filter on your BMW 7 Series.
What’s the purpose of a BMW 7 Series’s particulate filter?
So we commence our article content with the reason for this element not too long ago built in into diesel automobiles. As we outlined briefly in the introduction, the goal of this filter was to fix the problems of pollution and harmfulness of exhaust gases from BMW 7 Series automobiles. Its working concept is to store exhaust gases that are unburned or that still contain harmful particles, and when it is at a sufficiently high temperature to bring about a second combustion that will finish burning and eliminate all these carcinogenic particles. Regrettably, to reach this very high engine unit temperature, you have to be on the highway or have your BMW 7 Series engine unit revving up. So we have discovered as time passes that vehicles that are mainly 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 problems can force you to replace the particulate filter of your BMW 7 Series .
When to replace the particulate filter of a BMW 7 Series?
In this section we will find out what you are certainly drawn to here, if it is necessary to replace the particulate filter of a BMW 7 Series and if so, when?
Is it necessary to replace the particulate filter on BMW 7 Series?
There are 2 sort of particulate filter for vehicles, a particulate filter with additive, which does not matter the BMW 7 Series, 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 interested in in this article, functions with precious metals that will generate a chemical reaction at high temperature and bring about the regeneration of the filter and the evacuation of the carcinogenic materials. However, as explained 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 unit. If you need to clean the EGR valve of your BMW 7 Series due to your particulate filter, do not hesitate to check out our article on this subject to find out what the process is.
When to replace the particulate filter of a BMW 7 Series?
As we revealed just before, a particulate filter is designed to last the life of the car, nevertheless some of you might wonder when it is necessary to replace the particulate filter of its BMW 7 Series? Be aware that this part 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 replace should just be considered in the case of a completely clogged particle filter. If you don’t repeatedly 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 problematic, it is considered that due to the lack of a sufficiently frequent 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 BMW 7 Series, take a look at the BMW 7 Series category.
