Why is my DPF not regenerating?
The DPF will not regenerate if: The engine management light is on for any fault; There is a faulty EGR valve; There is less than 20 litres of fuel in the fuel tank, if the fuel light is on or the engine management light is illuminated..
How long does a DPF Regen take?
around 5 to 10 minutesActive regeneration takes around 5 to 10 minutes to complete, and normally happens every 300 miles or so depending on how you drive and how often you use your car.
What is active and passive regeneration in DPF?
Passive regeneration is an approach used to oxidise particulate matter (PM) in the diesel particulate filter (DPF). In contrast to higher temperature active regeneration, passive regeneration uses normal exhaust temperatures and nitrogen dioxide (NO2) as the catalyst to oxidise PM in the DPF.
How do I know if my DPF has regenerated?
You will know whether active regeneration is taking place by the following symptoms:Engine note change.Cooling fans running.A slight increase in fuel consumption.Increased idle speed.Deactivation of automatic Stop/Start.A hot, acrid smell from the exhaust.
How often does DPF regeneration occur?
every 300 milesActive 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.
How do I stop my DPF from clogging?
Here’s our top five tips on keeping your DPF clean and trouble free.Drive Faster. Contrary to popular belief, driving faster could actually save you money in the long run. … Use the right Oil. … Get your EGR valve checked. … Keep out of town. … Buy the right car! … Get clued up!
Can I clean my DPF filter myself?
Don’t DPFs clean themselves? In theory, yes. “Passive Regeneration” or if appropriate Active DPF regeneration will take place as part of a healthy diesel engine running cycle, but active regeneration can fail once a blockage reaches a certain level. Sometimes a “forced” regeneration may be carried out by a mechanic.
How far do I need to drive to clean DPF?
To make sure that the regeneration takes place, most manufacturers suggest that every few hundred miles, the car is driven for a period of more than 15 minutes at a consistent speed in excess of 40mph. Doing this should clear the filter.