The cost for a forced regeneration varies. Generally, it is between $300-$700 depending on the technician's required diagnostic time and the length of time your DPF regeneration lasts. How can I do a forced regeneration?
On average, it takes between thirty and sixty minutes to complete a forced regeneration. The substantial heat required for the regen renders the engine and aftertreatment system untouchable until it has time to cool down.
DPF cleaning cost can be significantly lower than the cost of a replacement, and cleaning can restore the filter's efficiency and performance. The cost of DPF cleaning is around $179 to $500 for most models. It's also worth noting that replacing a DPF filter can be an unnecessary expense in some cases.
Force regeneration of the particulate filter
The ash from the engine oil accumulates on the inner walls of the ceramic and in the pores. This increases the pressures in the DPF and if clogged, can even damage the engine.
Is it illegal to remove a diesel particulate filter? Yes, it is illegal. Owners face fines if caught and removing a DPF can also invalidate your car insurance policy.
Drive over 40 mph (64 kph) to begin active regeneration.
Begin driving and pay attention to both the engine and vehicle speed. Try to keep the engine speed around 2500 rpm. Active regeneration increases the temperature in the DPF to turn the particles into gas which can be expelled.
A DPF can last up to around 100,000 miles if maintained properly. After the car has exceeded that mileage, you could be looking at paying a large amount of money for a replacement - so always properly check MoT and service records when buying a used car.
Frequency depends on duty cycle and how much soot collects – as often as once a day or every other day An active regeneration could take up to one-half hour or more. If you slow down or stop the vehicle after an active regeneration has started, it may be interrupted and might have to start again.
Once the DPF clean has been performed a regen can occur. Whenever it is necessary to perform a forced regen an engine oil change is required after the regen.
How Often Does DPF Regeneration Occur? Active regeneration happens roughly every 300 miles and is triggered by your car's electronic control unit (ECU) once your soot level is approaching 40 to 45%. Passive regeneration should occur when you take your car on longer journeys at higher speeds.
The inner components of a DPF are expensive to manufacture as the soot / particulate they filter are so small. The matrix which catches the pollutants is also made from exotic materials such as porous ceramics and silicon carbide.
Replacing DPF Filters is expensive…
Needing to replace or clean a blocked DPF Filter is expensive, but can be easily avoided, with the use of Cost Effective Maintenance products.
Regeneration, or regen, of the DPF filter, is the process that burns the soot accumulation that is inside the DPF filter. If you can no longer start a regen then you will eventually get stuck in a derate which will then lead to an engine shut down.
The vehicle needs to run at operating temperature during the regeneration, so highway driving is best. Just drive as you normally would. During active regeneration, the exhaust outlet temperature is extremely high.
The easiest and cheapest method of DPF filter cleaning is by driving the vehicle for a long-distance at high revs per minute. Doing this increases the heat of the exhaust and burns the soot blocking the DPF filter. It's best to drive on a motorway or A road where you can keep the vehicle at a consistent speed.
Active DPF regenerations need to burn extra fuel to achieve the high exhaust temperature for soot oxidation, which results in the increased fuel consumption rates.
The DPF regeneration process creates very high exhaust gas temperatures and the exhaust will radiate a considerable amount of heat during and after DPF regeneration, and after you have switched the engine off. This is a potential fire hazard.
In which case it should be possible to complete a regeneration cycle and clear the warning light by driving for 10 minutes or so at speeds greater than 40mph.
Car fleets name the Mazda 6 as the most problematic vehicle fitted with a DPF, with 21% of enquiries coming from this model. The BMW 120, 320 and 520 series comes a close second with 13% of enquiries. BMW 330 and 530 models also made the top five.
While your vehicle won't stop running the moment the light turns on, continuous driving can lead to more severe issues like decreased fuel efficiency, reduced performance, and in the worst case, engine damage. An illuminated DPF light will cause an MOT failure.
There are many tell-tale signs you can look for if you suspect your DPF is blocked. When the filter becomes faulty or clogged up with soot, you will normally be alerted to this by an orange light on your dashboard. The emission of black soot is another sign that you need to have your DPF cleaned.
DPF cleaning involves the use of aqueous cleaning technology and specialist chemicals to reduce the soot emissions generated by your engine. Usually, your DPF removes soot automatically using passive regeneration. Our cleaning service removes the excess soot that is preventing regeneration from taking place.
My DPF is blocked, can I clean it without taking it off. the car? Yes, yes you can!
clean it! A diesel particulate filter is a device that traps unburned carbon particles, commonly known as fine particulate matter. These pollutants are produced during normal engine operation and the role of the particulate filter is to clean them out.