DPF filter cleaning


For exhaust system cleaning: DPF / FAP / SCR / CAT

We are able to apply the device to many groups of vehicles:

  • PERSONAL (passenger and off-road 4x4) vehicles
  • VANS and DELIVERY (light delivery) vehicles

We perform cleaning, testing and drying with the device. We print a printout of the results before and after the cleaning procedure. With the device we can achieve 80 ° C cleaning temperature with a liquid flow of as much as 450 l / min, and 150 ° C in the drying process, and we guarantee high efficiency in the cleaning process.

What are the benefits of professional and deep cleaning?

- without loss of warranty for vehicles under factory warranty !!!

- costs lower by up to 90% compared to the price of the new assembly

- documented / certified printout of the condition before and after the cleaning procedure

- back pressure and flow parameters in accordance with factory specifications

- without cutting, welding and loss of warranty of the OE manufacturer

- 100% environmentally friendly procedure

What is a DPF filter?

DPF - Diesel Particulate Filter, the designation FAP (French - Filters á particules, English Filter Antipollution) is used - an essential component built into the exhaust system of a diesel engine, whose task is to remove particulate matter and soot from the exhaust gases, which go into the atmosphere and pollute the environment. The particles are deposited in the form of soot, which is formed by combustion in a diesel engine. DPF stops most of the soot that would otherwise travel through the exhaust system and exit into the atmosphere. It can retain a certain amount of soot, but not much, and therefore has to go through a process called ‘regeneration’ to clean the soot deposits inside the filter. When the soot goes through the regeneration process, it turns into a much smaller amount of ash, which cannot be removed.

DPF cleaning stages:

  • visual inspection of the ceramic honeycomb filter
  • back pressure (mbar) and flow (m3 / h) test before cleaning
  • cleaning with a chemical agent and controlled hydraulic (impulse) shocks of water
  • hot air drying (65 - 150⁰C)
  • back pressure (mbar) and flow (m3 / h) test before cleaning

The most common causes of failures on DPF devices:

- driving short distances unsuitable for creating the high temperatures necessary for passive and active regeneration

- malfunction of the exhaust gas recirculation system, EGR valve

- turbocharger malfunction

- engine oil permeability

- common rail fuel failure

- malfunction of the air flow meter

- engine wear

INFO: servisac@ac-group.hr