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  When did BMW start installing DPFs in the X3? 14 Aug 2013 (Ask HJ)
  I am considering buying a BMW X3 2.0D SE. Could you tell me when the diesel particulate filter was introduced to this model.
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  Engine failure after 15,000 miles 29 Jun 2012 (Ask HJ)
  My friend's engine failed completely after only 15,000 miles, dealership says the cause was too much oil in the engine, but he has never added any between...
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  Will a Jaguar XF diesel be ok used for weekend and evening journeys? 5 Sep 2010 (Ask HJ)
  If I treat myself to a new or nearly-new Jaguar XF 3.0 diesel and only drive it at weekends and maybe some evenings, will the DPF be ok as long as those...
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  Does mileage affect diesel particulate filters (DPF)? 31 Jan 2022 (Ask HJ)
  You recently suggested that low mileage has an impact on blocked diesel particulate filters. Low mileage has nothing to do with it. If I don’t regularly...
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  DPF problems with Yaris - should the warranty cover the repairs? 3 Aug 2016 (Ask HJ)
  I am a driving instructor and run a 2013 Toyota Yaris 1.4 diesel, with 50,000 miles on the clock. The car had a new DPF fitted six months ago with new...
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  Buying a Volkswagen Tiguan - will if suffer from DPF issues? 12 Feb 2014 (Ask HJ)
  My wife is looking to purchase a 2012 Volkswagen Tiguan and will be doing approx. 14,000 miles a year. She will be doing some motorway driving, approx....
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  Toyota Yaris DPF problems 9 Mar 2016 (Ask HJ)
  I've had to pay my Toyota dealer £275 to regenerate the DPF and change the oil on my 2015 Yaris diesel. I used Millers longlife ACEA C2 5W30 at the last...
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  Will the Skoda Octavia TDI's DPF regenerate over a 14-mile run? 9 Nov 2013 (Ask HJ)
  I currently have a pre-DPF Skoda Octavia TDI Estate and am very pleased with it. I would like to buy a new one early next year but want to check a few...
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  Do I need to replace my Mazda 3's DPF? 12 Oct 2013 (Ask HJ)
  My 4-year-old Mazda 3 1.6 diesel has done 63,000 trouble-free miles. I live in the country so don't do many short trips (the nearest shop is 7 miles away)....
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  Should a dealer warranty cover a faulty DPF? 24 Jul 2013 (Ask HJ)
  We recently purchased a 2009 Honda Accord Tourer, with 62,500 miles and dealer warranty. After three weeks, the DPF light came on and the dealership sent...
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  DPF problems after recall on Volkswagen Golf 30 Jul 2012 (Ask HJ)
  My Golf TDI GT Sport 170 was recalled and repaired due to fault with the Piezo injector. Three new injectors were fitted. I have had problems ever...
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  Part and particle 15 Aug 2011 (Ask HJ)
  I drive a 2006 BMW 320d that I have had for a year and I understand it has a diesel particulate filter. The car has covered 60,000 but I only drive about...
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  Why isn't my Volkswagen Passat's DPF clogging when I use it for just 7000 miles per year? 8 Sep 2010 (Ask HJ)
  You keep talking about the problems associated with DPFs. I have a 56-reg Volkswagen Passat TDI 140 and I only do 7000 miles a year. My daily commute is...
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  Does my 2010 Honda CR-V 2.2 i-DTEC ES have a DPF? 8 Sep 2010 (Ask HJ)
  Does the above vehicle have a diesel particulate filter? No mention was made about this when my wife and I ordered one last month from our local Honda...
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  Does the DPF warning light in my pickup truck mean it's regenerating? 26 Jun 2017 (Ask HJ)
  My daughter has bought a three year old Isuzu pickup truck with only 12,000 miles on the clock. The DPF light keeps coming on, the main dealer says that...
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  Which cars have known DPF problems? 18 May 2013 (Ask HJ)
  With advancing age I want to drive something smaller and more economical (presently I have a Mazda 6 2.0i) and am very interested in the Hyundai and Honda...
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  Citroen C3 Pluriel - which is the best engine? 19 Jun 2016 (Ask HJ)
  I am looking to buy a late Pluriel. Could you tell me which is the best engine and is the diesel a modern one with a DPF or is at an older style?
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  Can you recommend a medium car for short trips which will avoid DPF problems? 2 Nov 2013 (Ask HJ)
  Could you recommend a reliable small to medium car or SUV for an average of 10,000 miles per year, primarily consisting of short journeys for a couple...
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  Suzuki Swift - should I extend my warranty? 24 May 2013 (Ask HJ)
  My Suzuki Swift diesel has come to end of warranty and now offered extended warranty. Would this be worth it and what should I look for, and would...
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  Jaguar XF - does it have a diesel particulate filter? 6 Nov 2012 (Ask HJ)
  Does the Jaguar XF have a DPF and if yes, are you aware of any problems? We have had problems with our current Vauxhall Insignia and don't want a repeat.