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  What's the average lifespan of a DPF? 26 Mar 2015 (Ask HJ)
  I have recently bought a four year old Volkswagen Touran 1.6 TDi with 17,000 miles on the clock and a full service history. The issue of DPF comes up...
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  Mazda 6 has DPF problem - should the dealer pay for the repairs? 12 Feb 2014 (Ask HJ)
  I bought a Mazda 6 (2006) from a used car garage in November 2013. Immediately after collecting the car there was a problem with it which, I brought to...
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  DPF ruining MPG? 7 Mar 2013 (Ask HJ)
  I've read and understand all your replies to the 'my car doesn't achieve what the official figures say', but I have had a shock on my recent change of...
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  I want a diesel car for my driving school without a DPF. What do you recommend? 3 Oct 2012 (Ask HJ)
  I am considering changing one of my driving school cars. Ideally, I would like to purchase a comfortable, quiet diesel car with a cam chain engine and...
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  Has Volvo initiated a software upgrade on the V50 R-Design diesel to assist with DPF regeneration? 10 Feb 2011 (Ask HJ)
  I apologise if I am boring you with this subject. I have been contacted by a local Volvo dealer who is aware that I am in the market for a new car and...
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  Are short journeys damaging the DPF in my SEAT Leon? 11 Jun 2010 (Ask HJ)
  I have a 57-plate SEAT Leon with a DPF filter fitted. I recently went to my local dealer as a warning light came on my dash. I left the car with them all...
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  DPF problems with BMW 1 Series 11 Aug 2016 (Ask HJ)
  I have a 59 plate BMW 1 Series 118d. For the past few weeks the DPF light has been coming on after about 10 mins after driving. My local garage says the...
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  Recall for new DPF and parts on six month old car? 6 May 2016 (Ask HJ)
  Booked my Nissan Juke 1.5 DCI in with a franchise for a handbrake adjustment, and dealer said they'd need it longer so as to carry out an engine management...
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  Our Audi A4 is developing a DPF fault - how can I repair it? 13 Oct 2012 (Ask HJ)
  My partner drives a 2006 Audi A4 2.0-litre diesel and the DPF light is now appearing on every weekend. The light very rarely appeared on whilst it was...
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  Should I worry about DPF and DMF? 15 Aug 2012 (Ask HJ)
  I have a June 2010 C Max, manual, 2.0L Duratorq-TDCi (136PS) - DW10, old model, with DMF and am pretty certain a DPF. The car has done 34k and I usually...
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  Will my new Nissan Qashqai diesel develop DPF problems doing short journeys? 28 Jan 2012 (Ask HJ)
  I ordered a new Nissan Qashqai 1.6DCI 4WD, which has a delivery date coming soon. Having seen recent bad publicity regarding DPFs, have I ordered the wrong...
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  DPF block caused by oil overfill 19 Oct 2011 (Ask HJ)
  My 2007 Volkswagen Caravelle TDI has covered 37000 miles and has developed a partially blocked DPF following and oil overfill at the last main dealer VW...
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  How does a DPF function? 15 Sep 2012 (Ask HJ)
  I have a 2001 Volkswagen Passat 1.9 TDI diesel. I understand that the car needs to travel a reasonable distance, say 20 or 30 miles, to ensure that the...
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  Is a diesel van a no go if I only do journeys of 10 miles? 25 Nov 2019 (Ask HJ)
  I want to change my Ford Connect for a Transit or Transit Custom. Most of my journeys are less than 10 miles - will I have DPF problems?
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  Why doesn't Volkswagen do a petrol Passat? 5 Sep 2016 (Ask HJ)
  I'm looking at buying a new Volkswagen Passat, however no petrol engines are available and I am a little concerned about the SCR/DPF issues that are frequently...
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  Passat warning light - dpf fault? 12 Dec 2015 (Ask HJ)
  I have just had a fault light come on the dash of my Passat CC and a message saying diesel-particle. Would you have any idea what this means , as the light...
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  When did Lexus fit a DPF to the IS 220d? 2 Dec 2013 (Ask HJ)
  I am considering replacing my 140,000 mile Vauxhall Omega V6 with a Lexus IS. Can you tell me when Lexus first fitted a DPF to the IS 220d?
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  Should I replace my diesel Qashqai with the petrol version to avoid DPF problems? 4 Jul 2011 (Ask HJ)
  I currently run a Nissan Qashqai 2.0-litre manual diesel. Long runs are now less frequent and I am considering changing to the petrol version to avoid...
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  DPF problems on VW Golf 1.6 TDI 2 Jan 2011 (Ask HJ)
  I am thinking of buying a new Volkswagen Golf 1.6 TDI. The problem is I do very low mileage (approx. 5000 miles per year). One Volkswagen salesman told...
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  Best SUV for £10k? 26 Feb 2016 (Ask HJ)
  We're looking to buy our first SUV, what would you suggest for under £10k? We'll do approx 8000 miles per year, reliability, economical a must, just concerned...