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• Vauxhall Vectra C (2002 - 2008) - 06 1.9 CDTI Estate - DPF or not? 13 Nov 2009 (Forum)
  I quite fancy the car, but the DPFs seem to be a nightmare on most cars
• Mazda Mazda 6 (2008 -) - 2.2 Diesel - what is a closed DPF system? 29 Jan 2009 (Forum)
  Mazda like several other manufactures ( new Honda Accord, new Toyota Avensis ) appear to be generally limiting their higher spec models to diesel engines only presumably to satisfy Company car drivers. I understand that the new Mazda 2.2 diesel is a closed DPF system. What is a closed DPF system and will it be better for longativity?
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  What are the drawbacks with DPFs? 1 Dec 2017 (Ask HJ)
  What are the drawbacks with particulate filters?
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  Can a blocked DPF cause cam belt failure? 17 May 2016 (Ask HJ)
  I own a 2010 Ford Fiesta 1.6 diesel with 101,000 miles. Recently the cam belt failed. The car is back with the dealer who tell me that the DPF is blocked,...
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  Does the Nissan Qashqai suffer with DPF problems? 27 May 2014 (Ask HJ)
  We have a Nissan Qashquai 2.0 petrol auto which is nearly four years old and is due to be replaced. We love the comfort of the car and would have replaced...
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  Does the Land Rover Discovery suffer from DPF problems? 26 Sep 2013 (Ask HJ)
  I have been worried about replacing my 2006 Land Rover Discovery 3, which I believe doesn’t have a DPF. I want to buy a newer Discovery, but am fearful...
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  Is it legal to remove the DPF from a car? 7 Sep 2013 (Ask HJ)
  I am a little confused. I know that removing a Diesel Particulate Filter is a modification and would have to be declared to my insurance, but as it is...
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  DPF fault on a Peugeot 307 9 Dec 2011 (Ask HJ)
  I have recently bought a Peugeot 307 SW estate (1.6 HDi 110). Although the bodywork and interior are absolutely fine I have found two problems with the...
• BMW x5 e70 2009 - DPF - Sooty tailpibe 14 Mar 2021 (Forum)
  I noticed the exhaust tailpipes were black with soot. Did X5 of this vintage have a DPF fitted ? if they did , why would the tailpipes be sooty ? Thanks
• Ford Focus Diesel 2016 (16) - DPF 21 Dec 2017 (Forum)
  My daily driving has now dropped to 4 x 2mile journeys. Up to now I haven't experienced any problems with the dpf unit. The engine is rated as a Euro 6. Whats best, a weekly longer journey or look at a petrol car?
• Ibiza 2011-1.2 TDI 75hp - Does it have a turbo an dpf ? 2 May 2017 (Forum)
  Hi! Does anyone know of this car is equiped with a turbo and dpf? It's hard to belive that it gets 75hp form a 3 cylinder 1.2 liter without a turbo, but couldn't find anything about this engine. 
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  Can I remove a DPF from a new car? 21 May 2014 (Ask HJ)
  I am looking for a new car, preferably a larger SUV style vehicle (I don't like the smaller versions) but I am worried about DPF filters as I work for...
• SEAT Leon - Custom Exhaust/DPF 21 May 2024 (Forum)
  My question is would my car output some decent sound (better than stock lol) or not as I still have the DPF intact? Yes I know I can have the dpf removed and it would make a huge difference but the thing is my car is already remapped and I heard you have to remap your car again when you get a dpf delete.
• Toyota Auris Touring Sports - DPF Issue - EML AUris 12 Apr 2018 (Forum)
  Hi All , I have a 2014 Auris estate 1.4 Diesel...The Engine light has come on. Got it checked by a mechanic who said it's the DPF and advised to run it hard on the motorway. (I've noticed much lower MPG and the start stop doesnt work since the light has come on) I also bought a few bottles of Wynn's DPF cleaner and have tried to do the regen on the motorway but the light is still on.
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  Why is the regeneration not clearing the DPF warning on my car? 31 Oct 2017 (Ask HJ)
  I have a risk of particle filter blocking warning showing up. Why is the regeneration not clearing it even after a long run at high speed?
• Mazda 6 - Mazda 6 DPF light help! 17 Jan 2015 (Forum)
  I have a question. My dpf light is flashing on my 57 plate mazda 6, bought it a few month ago full mazda service history aside from the service done by the garage I bought it from. Plugged it into the diagnostics machine and it is saying there is a dpf problem.
• VW crafter 2.5tdi - DPF 27 Jan 2014 (Forum)
  Excessive oil consumption 1 litre every 3 -4 weeks. Replaced turbo to no avail. Had engine replaced to no avail. DPF lights constantly coming on despite repeatedly cleaning DPF. Van on short trip mode as used as delivery vehicle. Mileage 87,000, my mileage 10-12000 per year. Well maintained all Vw parts and oils used.
• Peugeot 206 1.6 hdi - DPF Replacement Question 2 Apr 2013 (Forum)
  It just occured to me that a couple of weeks ago I got an anti-pollution fault which I checked out as being high voltage on the glow plugs - something which I read was required for a regen on the DPF. So, my question is, could that be the reason why the DPF is reading that it needs unblocking?  Could it be such a simple thing that changing the glow plugs and allowing it to regen would solve my problem?
• Vauxhall Zafira - dpf 31 Dec 2011 (Forum)
  hi everyone about 3 weeks ago my dpf had to be replaced as the old one had clogged up and blew 2 pipes of all of this was rectified but a couple of days ago the car went into limp home mode i scanned for fault codes and got one relating to the dpf and when i checked the saturation level with op com it was at 96% which i find hard to believe as since having the new one fitted it has barely done 200 miles could the mechanic have missed something do you need to tell the ecu a new dpf has been fitted as i noticed there is an option in op com to do this any advice would be great many thanx and a happy new year to u all graham sorry fogot to mention its a zafira b 2005 1.9cdti (120)
• DPFs - how to tell if they are working? 3 Jan 2010 (Forum)
  A curiousity based question rather than anything please. I've recently aquired a car equipped with a DPF. Can't say I've noticed its presence other than that unlike any previous diesel car I've had it doesn't seem to smoke even briefly under load/high revs. I do use it for regular long trips which I understand suits the DPF process but I was just wondering how I would know if it was functioning properly ?