Showing results in  Ask HJ [Show all channels]

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  Will a pick-up's DPF be okay with mostly short trips? 15 May 2020 (Ask HJ)
  I currently have a BMW 1 Series diesel that has a DPF fitted. I drive two daily trips of 15 miles with quite a bit of traffic. Over six years of ownership,...
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  OEM DPF not fit for purpose 20 Jun 2013 (Ask HJ)
  I have recently had the diesel particulate filter replaced on my 2008 Vauxhall Zafira, which has covered 50,000 miles. The DPF was diagnosed as being blocked...
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  Can DPF filters be removed or bypassed? 22 Aug 2010 (Ask HJ)
  In view of the problems with DPF filters is there any reason why they cannot be bypassed or disconnected? I appreciate that this would lead to a failure...
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  Does the Mazda 3 suffer from DPF problems? 11 Jan 2015 (Ask HJ)
  Which DPF system is on 2013 Mazda 3 1.6 diesel and do you recommend buying one if doing 7000 miles a year?
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  Mitsubishi Outlander - does it suffer with DPF problems? 25 Mar 2014 (Ask HJ)
  Can you tell me if the 2007 Mitsubishi Outlander 2.0 diesel suffer with DPF problems?
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  Avoiding a DPF with an X-Type 3 May 2013 (Ask HJ)
  I like the X-Type but hate DPFs. Do any early X-Types come without them? I don't expect any estates are free from them.
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  Particulate particulars 1 Jun 2011 (Ask HJ)
  Please explain why Mazda 6 2.2L diesels do not have the same DPF problems as the Mazda 6 2.0L diesel (where the sump can fill up with diesel oil)?
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  Should we use diesel additive in our engine to keep it in good condition? 30 Mar 2013 (Ask HJ)
  We are focusing on news regarding fuel additives for use in diesel engines. With diesel cars now over 50 per cent market share in the UK, and very significant...
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  Should I disconnect the DPF? 25 Jul 2022 (Ask HJ)
  What is your advice on disconnecting a DPF from a diesel car and running it without one?
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  The DPF light has come on in my Audi Q3 - is this caused by the emissions update? 10 Jan 2018 (Ask HJ)
  The DPF warning light has come on in my Audi Q3. It had the emissions update in March 2017. Audi have said that they will charge me £60 for diagnostics....
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  The DPF on my BMW 5 Series is blocked - can I add something to clean it? 2 Oct 2017 (Ask HJ)
  The DPF on my BMW 5 Series is blocked. Can I add something to clean it as I only do short journeys, or should I give the car a good run on the motorway?
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  Can a car dealer be held liable over a missing DPF? 24 Nov 2016 (Ask HJ)
  Can you clarify the situation regarding DPFs? What would happen if a used car was bought from a dealership and subsequently (after two years) found that...
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  Why does my Nissan Navara need a new DPF? 26 Oct 2016 (Ask HJ)
  I own a 2016 Nissan Navara, which needs a new DPF after just four months. This is my 4th Navara and never had issues before. There is no mention of the...
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  When did vans such as the Ford Transit and Toyota Hiace start using DPFs? 29 Aug 2010 (Ask HJ)
  If I am looking for a diesel Transit or Toyota Hiace, which year should I look for to find the latest model without a DPF? Does the Hyundai i800 have a...
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  Has Ford overcome the DPF problem by using an additive in its diesel engines? 23 Mar 2013 (Ask HJ)
  I have followed with interest your comments on DPF problems. I have not experienced these with my own 2009 Volkswagen 2.0-litre turbodiesel, although at...
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  BMW DPF won't regenerate - what next? 19 Apr 2013 (Ask HJ)
  I have a 3.0-litre diesel BMW X3 that does 12-15k miles p.a. on a reasonable mix of long and short runs. After 5yrs/65k miles BMW are telling me the DPF...
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  Vauxhall Zafira DPF issues 4 Jun 2015 (Ask HJ)
  I recently had a problem with the DPF on my 2007 1.9 CDTI Vauxhall Zafira, which resulted in dealership recommending a full replacement DPF part. I sourced...
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  How do I know if the DPF in my car is regenerating? 6 Nov 2018 (Ask HJ)
  I have a diesel Nissan X-Trail and I try to limit the number of short journeys. When I have to use it I tend to drive in the 2000rpm plus bracket. I have...
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  Can I add DPF fluid manually? 29 Apr 2024 (Ask HJ)
  Can a DPF fluid be added manually to each full tank of diesel on my Volvo V50 as my Filter Additive tank is showing a sensor failure and erratic level...
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  Do diesel hybrids have DPF problems? 19 Oct 2022 (Ask HJ)
  How do diesel hybrids cope with switching on and off, between diesel and battery, if they have a DPF fitted? Even a medium length drive might involve lots...