The problems of particulate filters are relatively regular. When the malfunction occurs, we can detect symptoms relatively different, such as loss of acceleration. It is rare that this malfunction of this smart forfour comes from the FAP as such, but the latter may be impacted. We will thus try to understand the principle of your filter, after that to find the cause of this malfunction.problem-fap-smart-forfour

What is a FAP used for on a smart forfour

This particle filter is to preserve yourself. Easy to guess, its mission is to filter molecules harmful for the man. Initially, there was a particulate filter especially on diesel engines, but they will be all the more usual in petrol engines. The molecules in question emitted by this smart forfour are so fine that they are able to simply penetrate inside the lungs. Doctors have certified that the latter may have caused health problems. In this case, this FAP is very useful. If a malfunction occurs, it is therefore essential to deal with it. The catalyst will reduce the molecules emitted, and then this particle filter will collect the molecules that have managed to pass.

FAP of your clogged smart forfour: causes and methods

Now let's get down to business. We can therefore identify this malfunction and know how to fix it.

Particulate Filter: The problem comes from poor combustion.

As we have already seen, it is rare for the particle filter to contain a malfunction. When it becomes blocked, it is because the malfunction probably comes from another place. Poor fuel combustion can sometimes cause a large amount of soot. It is therefore conceivable that this dysfunction comes from another element of the engine of your smart forfour. It is common that it comes from injectors.

A sensor problem

If a distorted signal is sent to a location within the engine, this will create mechanical problems in your engine. At the output, this filter will be impacted. The engine parts of your smart forfour may work properly, but there is an adjustment malfunction. Not easy to guess what the malfunction is without having a technician make a diagnosis.

You don't ride enough

Note that the particle filter can be cleaned independently. In fact, it is thanks to the temperature produced by the engine that the latter will be able to make the soot . If you drive mainly in urban areas, the particle filter of your smart forfour can become clogged much faster. We advise you to drive a quarter of an hour at 3000 rpm so as to clean it.

Conclusion

The particle filter of this smart forfour is one of the last links in the mechanical . If it has a malfunction, you will most likely have the cause of the malfunction before. Remember that permanently taking your FAP is clearly illegal, for the smart forfour as for any other vehicle. If it ever malfunctions, you should actually troubleshoot it or even have it replaced. Leave us a comment if this article has ever helped you. Enjoy the road!