A diesel particulate filter (DPF) is a filter that captures and stores exhaust soot (some refer to them as soot traps) in order to reduce emissions from diesel cars.
But because they only have a finite capacity, this trapped soot periodically has to be emptied or Cleaned to regenerate the DPF.
This regeneration process cleans off the excess soot deposited in the filter, reducing the harmful exhaust emission and helps to prevent the tell-tale black smoke you used to see from diesel vehicles, particularly when accelerating.
Can you clean a DPF? (Diesel Particulate Filter) – Yes, you can.
Under certain conditions, a DPF can become blocked, causing an engine fault code to display. In extreme cases – especially if the fault is ignored – the blocked DPF will cause the car to go into ‘limp’ mode. This will restrict the car to being driven slowly, the intention being it will be taken either home or to a garage where the fault needs to be addressed urgently.
Ignoring a DPF warning light can result in loss of power, reduced fuel economy, poor throttle response and difficulty starting & from 25th May 2018 is an MOT failure.
Cleaning a DPF is a cost-effective alternative to buying a replacement. A new DPF from the manufacturer is expensive – costs circa £1,000 for a family car and much more for premium models.
Typical causes of a blocked DPF can include too many short journeys where the regeneration processes can not be initiated. In most cases the blockage is a symptom of another problem most probably faulty DPF sensor, wrong engine oil or a failing turbo.
In theory, yes. “Passive Regeneration” or if appropriate Active DPF regeneration will take place as part of a healthy diesel engine running cycle, But sometimes system just failing .
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Phone
+44 7841 911557
Location
2b Balliol Rd, Fratton, Portsmouth PO2 7PP,
United Kingdom
wayne@expressturbos.co.uk