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• captiva - DPF, DMF,Oil warning just out of warranty 8 Aug 2012 (Forum)
  Sold my captiva, after warnings for dpf, dmf,  when warning light came on, given the cost of servicing and the prices for a dpf, a cltch kit and flywheel, and labour charges, now out  of warranty.
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  TIming belt or chain on a Civic? 19 Feb 2011 (Ask HJ)
  I've just bought a Honda Civic diesel 2.2-litre 57-plate ES model. Is this car timing belt or chain and has it got a DPF?
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  DPF faulty or not? 6 Dec 2012 (Ask HJ)
  My son has had one of these for about 4 months and I am bitterly regretting the advice I gave him to buy a diesel. The car is 08 and about 80k, has run...
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  Could you tell your readers we're now offering DPF cleaning services? 21 Dec 2013 (Ask HJ)
  Whether dealers try to force regeneration of DPFs or Eolys fluid top-ups, at some stage the DPF will need either replacing or cleaning because of a build-up...
• Reliable DPFs and EGRs 23 Jan 2019 (Forum)
  1) Is there a car manufacturer that has built up a deserved reputation for engineering a DPF system that simply works properly and is never a concern? 2)  Same question regards EGR valves (on diesel engines) 3) Is it true that even if a car has a DPF system that satisfies Question 1, the DPF will inevitably eventually fill up with ash anyway, and will therefore need to be removed and cleaned or replaced?
• Nissan Qashqai - Which cars have Active DPF regeneration? 20 Mar 2018 (Forum)
  Hi all, I currently have a Nissan Qashqai 1.5 dci and looking to get another diesel in the next few months. Preferably diesel and automatic. I like the fact that my current Qashqai has active DPF so it allows me to do short journeys as well as long ones. I like the Nissan Xtrail as it would suit my needs with a growing family and being over 6ft. Are there any other cars that have this Active DPF technology as I cant seen to find anything on the web other than what Active DPF tech is?
• Mazda 6 - Mazda Diesel or Petrol and DPF questions 12 Apr 2017 (Forum)
  Hello, I ned some advice because I've read conflicting info. I am thinking of getting a diesel mazda 6 but have read a post on here about the DPF issues with the Mazdas but I have also read that it's DPF's in generall that are an issue. So I have a few question to help clear things up. To prevent DPF issues, do I really just have to take it on the motorway for 10mins a week?
• Audi Q7 2008 3L TDI - audi q7 DPF pressure sensor 31 May 2015 (Forum)
  hi i have fault codes 1) particulate filter bank1 clogged upper limit reached 2) particulate trap bank below threshold not a plausible signal someone told me to check DPF pressure sensor and change it. when I looked I just have 1 pipe connected to it. cant find 2nd pipe coming from DPF is it possible that q7 has only one pipe connected to DPF pressure sensor? from catalist converter only 1 pipe and one wire comes out.
• Any - Who's had their DPF removed? 25 Jul 2014 (Forum)
  I'm giving serious consideration to buying an 06-07 plate mazda 6 2.0D and having the DPF removed as from my research this is the main problem area with this car/engine. I am aware of possible MOT complications in the future and after talking to a few places they tell me I can fit the 'original' pipe (containing DPF) before the MOT then remove is straight after without much difficulty.
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  Does my Pathfinder have a DMF and DPF? 6 Feb 2013 (Ask HJ)
  I have a Nissan Pathfinder 2.5 TDI, first registered in March 2006. Does it have a dual mass flywheel and DPF?
• 56 Mazda6 2.0D sakata - Plz help with Mazda6 DPF 31 Oct 2010 (Forum)
  HI IVE JUST RECENTLY PURCHASED A MAZDA6 2.0D SAKATA, IM AWARE THAT THERE HAVE BEEN ISSUES WITH THE DPF BUT I DO MAINLY MOTORWAY MILES SO HOPING I SHOULD BE OK HOWEVER I STILL ONE TO KEEP AN EYE ON IT AN JUST REALISED THAT WHEN I SWITCH ON THE IGNITION ALL THE WARNING LIGHTS COME ON EXCEPT FOR TH  DPF SO IM WORRIED THAT IF THERE IS A PROBLEM WITH THE DPF I WILL BE UNAWARE IF THE LIGHT DOESNT WORK.
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  What's the most effective way to clear a DPF? 21 Apr 2025 (Ask HJ)
  Motoring magazines often refer to taking the car for a fast run to clear the DPF. Surely a better way would be to drive in 4th or 5th gear with increased...
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  Will my DPF get blocked if I don't use my car while in lockdown? 15 Apr 2020 (Ask HJ)
  Will it harm my DPF filter if I don't use my diesel car at all during coronavirus lockdown?
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  The DPF light has come on in my car despite doing lots of miles - why has this happened? 11 Jan 2018 (Ask HJ)
  I have a 2008 BMW 3 Series Touring 3.0d. I do 20,000 miles per year on A roads, at high speeds, and change the oil and filter very regularly. A diesel...
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  Is there anything, other than long runs, that can clean a DPF? 2 Feb 2017 (Ask HJ)
  What year were DPFs introduced by Ford and Vauxhall. Also is there anything out there that can really clean them, apart from long drives?
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  Does my car have a DPF fitted? 17 Jun 2013 (Ask HJ)
  I'm just about to purchase a 2007 Nissan X Trail 2.0 Dci, can you tell me if this model is fitted with a dreaded DPF? I believe that the 173bhp versions...
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  Is it legal to remove the DPF from a diesel car? 28 Jan 2012 (Ask HJ)
  I've seen adverts for companies that can disconnect the diesel particulate filter from the car's ECU. Is this legal and does it make the car better? I...
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  New Focus - can I manage with a DPF? 6 Sep 2011 (Ask HJ)
  The new Ford Focus Powershift presently comes only with a Diesel engine. Is the diesel problem RECTIFIED on this new model or do they still come with...
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  Are DPFs covered by warranties, and how best can I store winter tyres when not being used? 22 Aug 2010 (Ask HJ)
  Are DPFs covered under manufacturers' warranties? Would they be covered under wear and tear cover from third party warranties? Also, do you know of any...
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  I'm buying a diesel but just read about DPF issues when used for short trips. Should I be right to panic? 3 Jun 2020 (Ask HJ)
  I'm a bit of a novice and don't know much about DPFs and diesel engines (or...well... cars in general). Normal small family car use, so mostly shop trips,...