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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...
• Which Manufacturers Have Less DPF Issues 1 Mar 2012 (Forum)
  I've been reading all the threads on DPF problems, but wonder which manufacturers have fewer problems with them and why?
• DPF regeneration 11 Jul 2011 (Forum)
  Hi All, I am thinking of buying a diesel car. I drive mainly urban for about 40 min, the max. speed is 30mph and the distance 10 miles (one way). With this particular type of daily commute will I have trouble with the DPF? In your reply, please include the make and model, the rev
• Skoda Octavia 2010 1.6 diesel - Removing DPF 28 Dec 2011 (Forum)
  gradually dropped. I was thinking of removing the DPF and turning off the pressure sensors etc. Anyone any experience of this, and the supply of a DPF "can" so I can refit the original if necessary. Would it still pass the MOT with the DPF removed?
• Ford Mondeo IV (2007 - ) - Poor Fuel Economy of 2.0 TDCi with DPF 4 Oct 2009 (Forum)
  If you are thinking of buying a Mondeo diesel for its fuel economy, think again. I have just bought a new 2.0 TDCi Titanium X Estate fitted with a DPF, which will not achieve more than upper 30's mpg. The DPF has had an effect on fuel economy, so if you want a Mondeo IV diesel to get more MPG
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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...
• Vauxhall insignia (59 plate) - DPF regen while parked? 7 Aug 2017 (Forum)
  Can I regen my dpf by parking my car and just leaving the engine running?
• Landcruiser Auto 2007 model - DPF on Landcruiser 3ltr D4D 1Kt-FTV 30 Jun 2012 (Forum)
  Is a DPF fitted to a 2007 model Landcruiser 173 PS auto?
• Vauxhall Meriva A MPV (2003 - ) - 2007 1.3 DPF regeneration 18 Mar 2009 (Forum)
  Can anyone tell me what DPF regeneration means on my 1.3 CDTI Meriva?
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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...
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  Diesel or petrol? 13 Dec 2015 (Ask HJ)
  I am driving a BMW 520D manual 57 registration for about 14000 miles per year, 80% in heavy traffic (A406).Very good car but I have problems with the DPF....
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  Vauxhall Combo lacking power - should I remove the DPF? 4 Dec 2013 (Ask HJ)
  My Vauxhall Combo van is suffering from a loss of power and black smoke. The engine light is also on and no garages can solve the problem. I have a suspicion...