light comes on the dashboard that says dpf self cleaning or exhaust self cleaning. you need to let the vehicle run and just let it complete that cycle it only takes about five or ten. minutes after you've stopped.
A DPF clean can take as little as 20 minutes to complete.
The DPF regeneration cycle takes approximately an hour and a half (1 1/2 hours) to complete and can be completed as part of a routine service.
During normal working condition the diesel particle filter will clean itself regularly by self-regeneration. After each regeneration-cycle, some ash are left in the filter and cause shorter regeneration interval. This means that each DPF will need service sooner or later.
Active regeneration will be initiated every 300 miles or so depending on how you use your car and will take 5 to 10 minutes to complete. But it's a problem if your journey's too short and the regeneration doesn't finish. During active regeneration you may notice: Cooling fans running.
Blocked DPFs wreak havoc with the delicate balance of your engine by preventing the normal venting of gases, which causes a variety of engine issues, as described above. In addition to reduced power and fuel efficiency, a blocked filter may eventually cause a dangerous mechanical malfunction and break your engine.
You should take your car on a run to allow the regeneration process to take place. Most engine management systems will actively regenerate the DPF when the car is driven at speeds above 40mph for around 10 to 15 minutes.
By driving continuously (for example, at around 60 km/h. for 20 to 30 minutes. By avoiding short trips, or by driving continuously (leaving the engine running for long periods of time). Check the engine is warmed up before driving the vehicle to regenerate the filter.
All you have to do is get your car on an A road or motorway on a regular basis, such as every 300 miles. You then need to run it for 10-20 minutes at speeds in excess of 40mph. This will heat up your exhaust and burn off any soot in the filter.
The active regeneration of the particulate filter occurs when the soot level in the DPF is around 40-45 % of its capacity. When the soot reaches this percentage, afterburner fuel is injected to increase the exhaust temperature.
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.
If your forced DPF regen lasts closer to an hour or continues beyond that, it likely suggests that your exhaust temperatures are not building up high enough to successfully burn off the soot collected in the DPF and that the truck is still trying to bring down those soot levels.
DPF Clean Team uses ultrasonic technology for a safe and thorough clean of these units, and has a 96% success rate.
Like all Redex fuel additives, our DPF Cleaner can be added to a full or partially full fuel tank as and when required. It's also safe to use with other products in the Redex diesel fuel additives range.
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.
DPF filters are built in such a way that allows them to clean themselves. When a car is driven at high speeds for an extended time, the engine will heat up to a degree that the DPF filter can burn away any excess soot. This process is called passive regeneration.
One final consideration, it takes time for a DPF to block, sometimes years. Once blocked though, turbo failure can occur very quickly.
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.
How long does a parked DPF regen take? It takes approximately 20-60+ minutes. It will continue to regen until the soot level has reached 'low' or '0%. ' Some trucks will let you monitor your soot level gauge on the dashboard.
The most common reasons for DPF blockages are: Short journeys where the engine doesn't reach optimum operating temperature; Clogged EGR Valve increasing diesel soot passed to the DPF; Faulty fuel injectors sending too much fuel to the air/fuel mixture; Incorrect engine oil upon servicing the car ; Turbocharger failure ...
Replacing a DPF can easily cost $4000 to $8000, and sometimes more, it's a big cost… particularly when a vehicle is out of warranty!
In most cases, the automated software won't delete these parts of the file, but then leaving part of the DPF file in place will also bring problems such as the vehicle falling back into limp mode, the DPF light coming back on, excessive smoke and as a result of this, an MOT Failure.
Perhaps the most critical disadvantage of removing DPF is the increase in soot and particulate matter volume in the air. Besides, you will be more likely to be fined for removing DPF based on the regulations that governments pass for climate control.