Elite Company Alanya
Clogged diesel particulate filter? We clean it in about an hour with water, pressure and air, and measure before and after the cleaning.
If the engine warning light is on, the car loses power or goes into limp mode and the filter regenerates often, it is frequently clogged. Before you buy a new filter, it is worth trying a cleaning. If the filter is mechanically damaged, for example cracked or melted, it has to be replaced.
Cleaning in two phases, measurement and report before and after, about one hour and a 12-month warranty. For cars, trucks, buses and construction machinery.
02 / Symptoms
If any of these sound familiar, bring your car in.
Warning lights you will know
05 / Process
The filter is removed and its condition is examined.
First the filter is removed and inspected inside and out. We see how heavily it is loaded with soot and ash and whether it is mechanically damaged, for example cracked. That way it is clear beforehand whether a cleaning is worthwhile.
Exhaust back pressure and flow are measured before cleaning.
Before cleaning we measure exhaust back pressure and flow. These starting values show how clogged the filter is and serve as the comparison later.
The filter is cleaned in the closed cabinet in the first phase.
The filter goes into our closed cleaning cabin. There it is treated with water, pressure and air to loosen soot and loose deposits and rinse them out.
In the second phase the rinse water runs increasingly clear.
In the second phase the filter is rinsed again. The rinse water becomes increasingly clear, a sign that less and less residue is coming out of the channels.
The measurement is repeated after cleaning.
After cleaning we measure back pressure and flow once more, so the condition can be compared directly with the starting values.
Before and after values (mbar and m³/h) are recorded in a report.
We record all values before and after (in mbar and m³/h) in writing in the report. That makes the result traceable.
Illustration: clogged and clean filter channels.
Clean instead of replace
If the filter no longer burns itself clean, waiting gets expensive.
When it is heavily clogged, regeneration can no longer run properly. If the problem continues, the ceramic in the filter can crack or even melt from the high temperatures. After that, not even a cleaning helps.
Depending on the vehicle, a new part is much more expensive than a cleaning. Fitting and removal come on top, and often further follow-up costs.
A professional cleaning with measurements before and after usually costs only a fraction. We give you the exact price for your vehicle on WhatsApp.
Guide price, depending on vehicle and condition.
04 / Difference
Additives in the tank or flushing the filter while it is still fitted sound convenient, but they miss the real problem: ash and deeply embedded soot.
Additives can be useful as prevention, but they usually will not get a heavily clogged filter clean.
A particulate filter is not a simple pipe with the exhaust flowing straight through. It is a wall-flow filter with many narrow, winding chambers. That is why the direction matters when cleaning.
If the filter is cleaned while fitted, the flow can push the dirt even deeper into the winding chambers in the driving direction.
With the filter removed, we flush from the outlet towards the inlet, against the driving direction. That flushes the dirt out where it came in.
Some providers burn out the removed filter or blow it out with compressed air. That looks cheaper at first, but it carries risks.
Burning out produces very high temperatures and large temperature differences. The ceramic can crack or melt and the coating can be damaged. Ash does not burn and stays in the filter.
Compressed air mainly moves loose dirt and can shift or compact it in the winding chambers. Stuck-on ash often stays behind. There is usually no measurement before and after.
The effect often lasts only a short time. The filter clogs again sooner, the warning light comes back, and in the worst case the filter is damaged and has to be replaced anyway. Then you have paid twice.
07 / Cause
To keep the filter from clogging again, these points should be checked too:
DPF differential pressure sensor
Measures the pressure before and after the filter. If it reads wrong, the control unit misjudges the loading.
Exhaust temperature sensors
They control regeneration. Faulty readings stop the filter from burning off properly.
Engine oil and oil filter (low-SAPS)
The wrong oil creates more ash and the filter clogs faster. Low-SAPS oil is required.
Injectors
Leaking or coked injectors create more soot than the filter can handle.
EGR system
A dirty EGR valve disturbs combustion and raises the soot level.
Turbo and air system
Oil loss or lack of air causes incomplete combustion and more residue.
Oxidation catalyst (DOC)
Heats the exhaust gas for regeneration. If it is defective, regeneration fails.
Software and adaptation
Regeneration strategy and loading values must match the cleaning and are adjusted if needed.
FAQ
The diesel particulate filter (DPF) traps soot from diesel exhaust, and the petrol particulate filter (OPF) does the same on petrol engines. Over time soot and ash build up in the filter and clog it.
Typical signs are a lit engine warning light, loss of power or limp mode, higher fuel consumption, and frequent regeneration with smell or smoke.
The cleaning takes about one hour.
We clean in two phases with water, pressure and air in our own machine. We measure the filter before and after and record the values in a report.
Additives and flushes mainly act on soot. The ash that collects in the filter over the years usually stays behind. A thorough cleaning with water, pressure and air removes these deposits too.
Yes, we give a 12-month warranty on the cleaning.
Cars, trucks, buses and construction machinery with a DPF or OPF.
Then the cause is often not the filter itself but, for example, sensors, engine oil, injectors, the EGR system or software. The checklist above shows what we go through with you.
Message us on WhatsApp or call. Tell us the make, model and symptom and we will get back to you right away.
08 / Contact
Tell us the make, model and symptom and we'll get back to you right away.
