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PARTICULARE FILTER DPF/PDF/FAP

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DIESEL PARTICULATE FILTERS: DPF, PDF, FAP

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High-quality repair, maintenance, and deletion services of diesel particulate filter (DPF, PDF, FAP) for passenger cars, trucks and industrial equipment. Professional experts with capabilities to solve any problems in this field.
 

WE PERFORM FULL-RANGE OF DIESEL PARTICULATE FILTER SERVICES

DIAGNOSTICS OF A FAULTY DPF FILTER

Find the exact cause of system failure and restore it to a working condition

MECHANICAL CLEANING OF FILTERS

DPF cleaning by using the latest 3-step cleaning procedure and chemicals that have no analogues on the Baltic market.

DPF REMOVAL

Full-range service including DPF mechanical removal and reprogramming of the engine control unit software.

PROBLEM SOLVING AFTER A SUB-PAR SERVICING

Analysis of the changes made and correction of mistakes made by third-party service centres.
Below you will find: a detailed description of the system, causes of failure, and the appropriate solutions that will help you to choose the best procedure. No time to read? Just call or write an email to us and we'll help you to choose the best option for your situation!

MORE ON PARTICULATE FILTERS

Diesel Particulate Filter function

All modern diesel engine cars are factory-equipped with a particulate filter, commonly referred to as diesel particulate filter. It is also abbreviated as DPF, PDF or FAP. Usually it's installed after the catalytic converter and is encased in a metal shell. It's made of a porous ceramic block that weighs from 1 to 6 kg (depending on the car). Its purpose is evident from its name - the particulate filter removes (filters) unburned soot particles from exhaust gas.

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Problems with DPF

Usually the filter has a service life of 200 000 kilometres and should not cause any problems up to that point if used properly. However, problems often arise after 40 000 kilometres or even less. Why? There are several main causes:

  • Physical wear and tear.
  • Poor quality fuel.
  • Malfunction of one or more filter components (sensors).
  • Oil entering the exhaust system.
  • Operating the vehicle when active regeneration is not initiated.

It's important to take into account the main cause - a filter cannot accumulate soot endlessly, therefore the regeneration (burning) procedure is periodically initiated. For it to happen to a sufficient degree, the car must be operated at increased RPMs for about 15-25 minutes while the engine is fully warmed up - only then the exhaust gases can reach a temperature of up to 650 - 800 degrees Celsius. Only then the filter gets regenerated. During urban driving (especially on short trips) the burn-off practically never initiates, thus the filter quickly clogs up and fails.The same thing happens when components that control the filter and regeneration process fail.

Symptoms of DPF failure

There are several symptoms from which it is possible to tell that there's a problem with DPF:

  • Check Engine" and DPF malfunction indicators light up in the instrument panel.
  • Loss of power or non-operating turbocharger.
  • Malfunction of the turbocharger - including after repairs. It serves as a clear sign that there's a problem with DPF. When the filter is clogged, the following occurs: strong back-pressure is generated, deposited soot particles affect the geometry of the turbine that jams the turbine and vanes (complaints about turbine underboost or overboost); soot deposits on the turbine impeller that cause imbalance.
  • Increased oil level is a clear sign of problems with DPF. Diesel fuel enters the lubrication system due to the constant regeneration, and this results in increased wear of all engine parts.
  • A symptom of a faulty filter can also be increased fuel consumption (especially on Toyota/Lexus cars), engine starts to stall or does not start at all, thick smoke exiting the exhaust system periodically (active regeneration).
  • Failure of sensors. Soot that cannot escape freely will lead to rapid failure of sensors that are monitoring the condition of the filter, resulting in its complete failure.
  • Noises when over-throttling. Engine RPMs increases slowly, popping-back when dropping RPMs, "whistling" noises from the turbocharger, etc.
  • Thick black smoke is emitted periodically. Usually this happens only to those cars that are equipped with an additional nozzle for DPF filter burn-off.
  • Constant regeneration or too frequent activation of the DPF burn-off cycle.
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OPTIONS FOR SOLVING PROBLEMS WITH DPF

DPF Filter replacement

It would seem that the easiest and most reliable option is to simply replace the faulty DPF with a new one. However, it's not that simple. First of all, the cost of a new OEM filter can reach up to 3000 euros (averages for about 1200 + installation). Secondly, the replacement alone DOES NOT WARRANTY that the problem won't reoccur - you can replace the filter, but there's a chance that by doing so you won't eliminate the root cause of the problem. This leads to additional expenses - to repair DPF sensors and components. There is an option to save money and install a non-OEM filter (starting from 300 euros). However, from our experience we can tell that their service life is limited - from 1 month to a year. After that the filter fails and everything repeats itself... It is also necessary to perform an adaptation procedure when replacing a filter. All these procedures can be carried out in our service centre.
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DPF mechanically Cleaning

With deep cleaning (by using appropriate chemical agents) the filter can be fully cleaned and restored to its working condition. The most important factor for properly conducting this procedure is to seek the assistance of professionals. This must be done in order to properly diagnose and eliminate the cause of the failure, because just “washing” the filter is not a valid option - things can get even worse. In the video you can see why this is important. Advantages of this solution are: complete filter restoration and prevention of problem recurrence in the near future. Cons: cleaning is not possible if the filter has already started to break down; sometimes expensive sensors need to be replaced; sooner or later the problem will reoccur. Our experience shows that cleaning is only effective when total mileage is less than 200 000 km. If this is exceeded, then the chance of success is reduced to about 50%, since the service life of DPF is about 200 000 kilometres. DPF also loses its physical properties that cannot be restored via cleaning.

WE PERFORM PROFESSIONAL CLEANING BY USING TECHNOLOGY AND CHEMICAL AGENTS THAT HAVE NO ANALOGUES ON LATVIAN MARKET. WE ELIMINATE THE CAUSES OF FILTER FAILURE. IN THE VIDEO BELOW YOU CAN SEE AN EXAMPLE FOR WHY IT IS SO IMPORTANT TO ENTRUST THIS JOB TO PROFESSIONALS. IMPROPER EXECUTION OF THE PROCEDURE LEADS TO A COMPLETE FILTER FAILURE - SAME APPLIES WHEN ATTEMPTING TO CLEAN A FILTER THAT HAS ALREADY STARTED TO BREAK DOWN.

Particulate Filter Removal

Operation is simple enough - physical removal of the clogged filter. DPF removal also means that the software modification step must be also carried out. If reprogramming is not performed, the car will enter emergency limp mode. Advantages of removal are obvious: the problem is solved once and for all; engine and turbocharger will work easier due to the absence of airflow restrictions - especially due to the exhaust gas back-pressure caused by DPF filter. Cons: car will become less "environmentally friendly". However - continue reading and you'll understand that all these concerns are iffy at best. Other problems (plumes of black exhaust smoke, inability to pass MOT vehicle inspection, ECU errors, etc.) are either non-existing or are a consequence of a sloppy sub-par service performed by non-professionals. Some facts are given below.
Full range of DPF removal expert services can be performed at our service centre. All stages of this procedure are performed in-house (mechanical and software procedures) - this guarantees excellent results, our full responsibility and warranty, and lack of problems. We do not use emulators and other low-quality solutions - only serious approach can guarantee a life-long and quality solution of the problem.

Filter removal: Ecology, Black smoke, MOT Test

Some car owners experience problems after the filter removal - car starts to emit smoke heavily, errors light up on the dashboard, and MOT inspection test is out of the question. The cause of this problem is not the fact that the filter is removed - these problems are a direct result of the quality of services provided by incompetent amateurs in cheapest service centres. When removal is done by experts you are protected from such "perks". Guaranteed. There is a huge quality difference between tuning performed by professionals that use proven and certified solutions and non-professionals who are using “disablers” and lacking the understanding of proper procedures. Fixing up after such a "service" can sometimes be several times more expensive than doing everything properly from the start. MOT test WILL BE PASSED successfully if injectors and turbochargers are working as expected. Below is a video, in which you can see the car modified in our service passing MOT Test successfully after DPF and EGR removal. Smoke emission value - 0.50 when value of 1.5 (Euro 4 and Euro 5) must not be exceeded!After performing work of high quality the car will be able to pass the test with a threefold margin with no problems! Moreover, this figure also meets the Euro 6 standard (0.75)! It goes without saying that with figures so low there will be no plumes of black exhaust smoke and other unpleasant surprises.

It's important to remember - sometimes insignificant initial savings can lead to serious expenses (money, time, and nerves) later - it's better to have an expert perform quality services from the get-go. Below is an example of our work.

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WHY ONLY PROFESSIONAL DPF REMOVING COULD BE APPLIED?

Passing the MOT inspection successfully with DPF removed.

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