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Removing the Diesel Particulate Filter - an easy task for the experts

Modern exhaust systems are anything but simple and these days they have an in-built particulate filter, which could prove to be a very costly replacement item when it becomes clogged.

The Diesel Particulate Filter (DPF) is a filter that acts as a dirt-trap to prevent many of the dirt particles that are found in the exhaust gasses from escaping into the atmosphere. This system was designed specifically for diesel engines and for countries where the emission standards are very high.
SAC Diesel Particulate Filters

In South Africa, our fuel quality remains a concern and it often leads for more dirty particles in modern diesel engines’ emissions. This means that the DPF has to work much harder than in many other parts of the world and it clogs up quicker.

SAC Diesel Particulate FiltersTo prevent the DPF from clogging up, modern exhaust systems will burn the particulates at regular intervals while you are driving at highway-speeds. You may have seen some modern cars blast a short puff of white smoke on the highway; which is the DPF cleaning itself. The white smoke is in actual fact a cloud of ash from the burnt particles.

Apart from the poor fuel quality mentioned before, the DPF can also become clogged from the burnt ash that is emitted when the DPF cleans itself, and while some very expensive cars have an additive that is added to the DPF to assist in its cleaning, this additive has to be topped up at specific intervals, which may also prove costly.

At the same time many city-dwellers spend countless hours in traffic, which does not allow the DPF to clean itself. Over time this will speed up the clogging of the DPF.

Unfortunately, one cannot just ignore the DPF when it becomes clogged up. A blockage will increase the heat in the exhaust system significantly and will ultimately damage the engine, while it will also cause your warning lights to illuminate and the vehicle to go into the so-called limp mode.

Diesel Particulate Filters

When in limp mode you can barely drive your vehicle, as the engine tries to protect itself from the possibility of major damage. This can be very frustrating, especially when you are driving late at night or over a far distance and help is not readily available.

To best address this problem, and save customers tens of thousands of rands in the process, SAC has developed a method of removing the DPF. This is not a simple task, as it requires a full diagnostic of the vehicle and an adjustment of its Electronic Control Unit (ECU) to prevent the engine from malfunctioning.

At Steves Auto Clinic our team of technicians are well trained to remove a DPF, reprogram the ECU and reset the system. This will not only save you the R20 000 to R40 000 to replace the exhaust DPF, but it will also allow the vehicle to breathe better and ultimately perform better.

Contact your nearest Steves Auto Clinic for more information on the operation of the DPF and ways in which Stephen Fischer and his team can help you save money and extend the productive life of your exhaust system.
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