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A faulty DPF filter increases the vehicle's fuel consumption and reduces power
The fuel added to the engine oil reduces the quality of the oil and increases the quantity.

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How does DPF work?

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In addition to the conventional boiler neutralization of harmful exhaust gases, the DPF collects unburned soot particles from diesel up to a predetermined level.

When the predetermined level is exceeded, the particulate filter begins to burn itself empty (DPF regeneration). During this procedure, the temperature of the exhaust gases inside the soot filter is raised to 500-600 °C in order to completely burn off the collected soot particles.

 

WHAT IS DPF?

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It is called Diesel Particulate Filter or particulate filter, popularly also known as soot filter. On French cars, you can also find the abbreviation FAP (Filtre à particules).

It is part of the car's exhaust system, which cleans the exhaust gases to the required EURO standards. While the catalytic converter chemically cleans the exhaust gases, the soot filter captures and retains the soot particles of the diesel until the engine brain commands the soot filter to burn the collected particles.

In most cases, a particulate filter can retain about 80% of the particles, but in the best cases, up to 100%.

The effect of DPF on fuel consumption

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A particulate filter as a filter acts as an obstacle to the flow of exhaust gases and creates back pressure. Although the manufacturers have made the flow resistance of the filter as low as possible with their tests, it still has a fairly high resistance, especially considering that the exhaust system also has a catalyst in addition to the soot filter.

The fact is that any factor that hinders the operation of the engine excessively increases the fuel consumption of the engine. In addition, fuel consumption also increases during the emptying of the DPF, because the high temperature required for combustion is achieved by injecting an extra amount of fuel into the cylinder during the exhaust stroke. A large part of this fuel sticks to the walls of the cylinder and is pulled into the crankcase with a piston ring, where it spoils the oil (the oil level rises).

Why does the DPF need to be replaced?

Decrease in engine power
Smoke from the exhaust 
Increased fuel consumption
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Indicator light in the shape of a DPF filter
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Frequent DPF filter burn-through process
Frequent DPF regeneration

Effective solution to the problem
 

Is it necessary to change the filter at the dealership? In this case, two things must be taken into account: the high price (1500-6000€) and the lack of a guarantee that the new filter will work efficiently for at least 100,000 km.

Triggering forced regeneration with factory diagnostics in the case of a physically worn soot filter is a pointless activity that unnecessarily loads the engine and spoils the engine oil.

Removing the soot filter only works in conjunction with the removal of a program that requires changing the engine control program to the mode of operation without a soot filter.

Therefore, it is not advisable to knock out the filter without turning off the DPF function in the engine control unit program.

We offer a solution to DPF filter problems at the lowest price.
 

Contact us and we will make you an offer!

                                      +34 604 488 026

                                     

 

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