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  BMW 5 Series DPF issues - what should I do? 21 Jan 2022 (Ask HJ)
  I have a 63 plate BMW 520D (F10)  Auto Efficient Dynamic version (Euro 6) As I drive a lot on motorway, the car has a high mileage, close to 180,000 miles....
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  How long will the DPF last on a Volvo C30? 16 Nov 2016 (Ask HJ)
  I have always had petrol engine cars myself, but my dad has recently purchased a 2010 (60) plate Volvo C30 D2 (1.6 diesel engine, facelift model, R-Design)...
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  Mazda 6 diesel engine/system does not have DPF - good thing? 19 Jan 2016 (Ask HJ)
  I have been advised that the Mazda 6 diesel engine with SkyActive technology does not have a DPF and therefore avoids associated problems of other diesel...
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  DPF regeneration 29 Jun 2015 (Ask HJ)
  I have a 2015 CLS 350 CDI. My concern is the DPF having read your column for a while. Even at speeds beyond legal limits, with the nine speed gearbox,...
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  Can I remove the DPF from my car? 21 Dec 2013 (Ask HJ)
  Are DPFs a legal requirement? What do you think of ECU-Flash's DPF removal service, please?
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  How can I tell if a DPF regen is taking place? 15 Oct 2016 (Ask HJ)
  Do any vans tell the driver when a DPF regeneration is starting or taking place?
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  Eolys Fluid - will it help DPF regeneration? 24 Feb 2014 (Ask HJ)
  I have a 2006 Citroen C5 Estate 1.6 HDi. It uses Eolys fluid to assist combustion, does this in turn mean that the DPF will not need to be replaced or...
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  Clearing a DPF 4 Oct 2011 (Ask HJ)
  I have been told that if I do several short trips in a 4x4 with a dpf i can un block it by engaging low in theauto box and then driving flat out up a steep...
• Kia Rio DPFs 13 Jan 2017 (Forum)
  Does anyone know when kia started fitting dpfs to the Rio? Would it have been 2009? Cheers
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  My Mercedes-Benz has constant DPF issues that aren't due to my driving - what should I do? 24 Aug 2017 (Ask HJ)
  I brought a brand new Mercedes-Benz GLA 220d last September. Within three months of ownership my engine management light came on and the cars power was...
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  SEAT Leon DPF troubles - what should I do? 8 Sep 2016 (Ask HJ)
  I just bought a SEAT Leon diesel with 52k on the clock. Within 2 weeks the DPF yellow light came on. The car had a couple of hundred motorway miles in...
• Jaguar XF - Is there a way of testing if DPF regen is working? 7 Jan 2023 (Forum)
  There are no warning lights on the car and it drives 100% fine but if the Glow Plug Module isn't working, DPF regenerations won't take place - I haven't noticed a DPF regen for a few weeks. Is there anyway of testing if the DPF regeneration is still working? Even if I take the car on a long run, it may not regen the DPF as it's not as though it happens on every long run.
• 2010 citroen c3 picasso 1.6 diesel 90bhp - DPF 28 Apr 2013 (Forum)
  does this car have a DPF fitted?
• Ford Focus 1.6 TDCi (110) - DPF removal of. 5 Jan 2011 (Forum)
  Does it infringe on any legal requirement if you remove the DPF?
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  How can I fix DPF issues? 17 Jun 2024 (Ask HJ)
  My wife has a 2014 Mazda CX-5 with 80k on clock. We have Been advised by a garage that the DPF is more or less knackered and causing turbo failure. One...
• Honda CRV 2005 2,2 diesel - misguide of DPF -have replaced the pre-converter 1 Dec 2014 (Forum)
  City driving  short distances got me the dpf light again , when I decided to replace the dpf with a new one ; I did not do it with the dealer due to high price but with an authorized workshop ; It has been removed the right part ( the DPF by the mechanics) but following my pal instructions ( he was working 7 years with Honda as car mechanic ) I told them , "this is not the dpf " - I meant the part of the exhaust that has two small pipes attached - and also " I want you to remove for me this part because that´s the DPF (??)
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  Can a diesel van be used for short journeys? 24 Feb 2021 (Ask HJ)
  Can the Toyota Proace diesel van be used for short journeys? I believe it has a DPF.
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  What sort of speed and for how long do I need to be driving for the DPF to be working? 30 Sep 2018 (Ask HJ)
  What sort of speed and for how long do I need to be driving for the DPF on my diesel to be working?
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  Dashboard symbol for DPF regeneration? 28 Jul 2016 (Ask HJ)
  Is it possible to retro fit my 2011 Ford Kuga 2.0TDCI with a dashboard symbol that will warn me when the ECU triggers a DPF regeneration, so that I know...
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  DPF on a Skoda 1.9 TDI 1 Jun 2015 (Ask HJ)
  I am thinking of buying a 60 plate Skoda 1.9 TDI PD and can't get a definitive answer to the question of does this engine have a DPF fitted. I've asked...