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  Could you tell your readers we're now offering DPF cleaning services? 21 Dec 2013 (Ask HJ)
  Whether dealers try to force regeneration of DPFs or Eolys fluid top-ups, at some stage the DPF will need either replacing or cleaning because of a build-up...
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  Does my Pathfinder have a DMF and DPF? 6 Feb 2013 (Ask HJ)
  I have a Nissan Pathfinder 2.5 TDI, first registered in March 2006. Does it have a dual mass flywheel and DPF?
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  Will my DPF get blocked if I don't use my car while in lockdown? 15 Apr 2020 (Ask HJ)
  Will it harm my DPF filter if I don't use my diesel car at all during coronavirus lockdown?
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  The DPF light has come on in my car despite doing lots of miles - why has this happened? 11 Jan 2018 (Ask HJ)
  I have a 2008 BMW 3 Series Touring 3.0d. I do 20,000 miles per year on A roads, at high speeds, and change the oil and filter very regularly. A diesel...
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  Is there anything, other than long runs, that can clean a DPF? 2 Feb 2017 (Ask HJ)
  What year were DPFs introduced by Ford and Vauxhall. Also is there anything out there that can really clean them, apart from long drives?
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  Does my car have a DPF fitted? 17 Jun 2013 (Ask HJ)
  I'm just about to purchase a 2007 Nissan X Trail 2.0 Dci, can you tell me if this model is fitted with a dreaded DPF? I believe that the 173bhp versions...
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  Is it legal to remove the DPF from a diesel car? 28 Jan 2012 (Ask HJ)
  I've seen adverts for companies that can disconnect the diesel particulate filter from the car's ECU. Is this legal and does it make the car better? I...
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  New Focus - can I manage with a DPF? 6 Sep 2011 (Ask HJ)
  The new Ford Focus Powershift presently comes only with a Diesel engine. Is the diesel problem RECTIFIED on this new model or do they still come with...
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  Are DPFs covered by warranties, and how best can I store winter tyres when not being used? 22 Aug 2010 (Ask HJ)
  Are DPFs covered under manufacturers' warranties? Would they be covered under wear and tear cover from third party warranties? Also, do you know of any...
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  I'm buying a diesel but just read about DPF issues when used for short trips. Should I be right to panic? 3 Jun 2020 (Ask HJ)
  I'm a bit of a novice and don't know much about DPFs and diesel engines (or...well... cars in general). Normal small family car use, so mostly shop trips,...
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  How can I fixed a blocked DPF? 26 Aug 2014 (Ask HJ)
  I am having a recurring problem with a DPF n my car. My 2012 Volkswagen California is about to go to the garage to unblock the filter for the third time....
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  Does the Kia Cee'd suffer DPF problems? 5 Jun 2014 (Ask HJ)
  We're looking to buy a Kia Cee'd 2013 or newer and prefer diesel.The car will be used as a second car for lowish annual mileage, but occasional journeys...
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  Do all Corsa diesels have DPFs? 8 Dec 2011 (Ask HJ)
  Do all early Corsa D diesel models have dpf filters? If not which ones dont have them?
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  Retrofitting an Adblue tank 10 Jun 2011 (Ask HJ)
  Can an adblue tank fitted to a diesel powered car at all?
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  The DPF light keeps coming on in my car, despite driving it properly - what do you think? 26 Jan 2018 (Ask HJ)
  I bought a 2006 Hyundai Tucson in October 2017. The engine warning light was flashing when I test drove it and I was told that this was the DPF. I was...
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  Does addblue solve low mileage dpf problems on diesels? 4 Aug 2013 (Ask HJ)
  I want to buy an automatic Seat Alhambra but they only have diesel options. I had dpf problems with a Zafira diesel automatic we purchased in 2006 because...
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  How can I cheaply replace or repair the DPF filter in my Mazda 6? 28 May 2011 (Ask HJ)
  I own a 2008 Mazda 6 2.0-litre diesel with 77,000 miles. A little while ago a DPF warning light came on and the car went into 'limp' mode. I spoke with...
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  How can I tell when the DPF regen cycle has completed? 18 Oct 2016 (Ask HJ)
  I own a 2012 Mazda 3 with a 1.6-litre diesel engine. Recently a warning light came has come on, stating that the oil level is too high. A local mechanic...
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  Kia warranty - does it cover DPF? 23 Nov 2012 (Ask HJ)
  After much thought I've decided to buy a secondhand Kia-approved Cee'd Ecodynamics for just over £10,000. The brand new seven-year warranty is obviously...
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  Does the Ford Galaxy have a DPF? 8 Nov 2012 (Ask HJ)
  I’m looking to purchase a big seven-seater MPV. However I would only be doing 5000 miles a year, mainly for short journeys, so I’m worried about having...