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  Why does the DPF light on my 2011 Volkswagen Golf TDI keep coming on after the emissions fix? 6 Mar 2017 (Ask HJ)
  I have a 2011 Volkswagen Golf 1.6 TDI Bluemotion. The DPF light was coming on after the emissions fix was done so I went to the dealer but the same problem...
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  My Audi A4 is suffering a DPF fault - what is causing it? 2 Apr 2012 (Ask HJ)
  I drive a three-year-old Audi A4 TDI and cover 85 miles each day to and from my place of work. My total annual mileage is roughly 28,000. On 5 November...
• Mazda 6 - Diesel Particulate Filter Issues [Mazda 6] 4 Sep 2015 (Forum)
  ). Unfortunately though, I took it for a spin on Saturday not realising the DPF issue (drove it in 6th for 40 miles or so) and the blessed thing dropped into limp mode on me on the M5. That being, a sudden loss of acceleration that forced me from the outside lane in 6th gear at around 75mph, to the hard shoulder
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  Can you recommend an MPV that won't give me DPF problems? 17 Sep 2016 (Ask HJ)
  I have a Ford C-Max 1.6 diesel which was bought new in 2007, serviced regularly, and has now done 112,000 miles with virtually no trouble. I am now looking...
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  Which Octavia - or do I buy the Hyundai i30? 4 Apr 2014 (Ask HJ)
  I'm looking at a 2010 2.0 PD diesel Skoda Octavia L&K with 122,000 miles for £6750 or a 2008 1.8-litre L&K petrol Skoda Octavia with 22,000 miles for £5950. Normally...
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  Buying a used car to cover lots of short trips- which is best for £3000? 19 Sep 2013 (Ask HJ)
  I’m looking to buy a new car to cover lots of short trips. Overall, I drive 12 times a day, but only cover 20 miles. We have £3000 to spend and the car...
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  Can you answer my technical questions on diesel engines? 20 Apr 2013 (Ask HJ)
  I have a few queries on diesel cars that I would be grateful for your advice on. 1. With regards to the diesel particulate burning cycle, what is the effect...
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  How should I drive my diesel Honda to protect the DPF, EGR valves and other diesel-related components? 16 Feb 2013 (Ask HJ)
  I am taking possession of a new Honda CR-V 2.2 iDTEC EX auto at the end of the month. With previous diesel vehicles I have driven them from new following...
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  Which Golf for a new driver in London 29 Sep 2012 (Ask HJ)
  I'm a new driver now considering a vehicle. I narrowed my choice to a used Volkswagen Golf MK5, either the 1.6 petrol or the 1.9 diesel. My question is,...
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  Put off by excessive wear on used model? 19 Aug 2012 (Ask HJ)
  Hello - I am thinking of buying an ex-motability 09 Citroen C3 picasso. It has done 15,000 miles - but has had new tyres fitted. I have seen a visual health...
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  Should I expect DPF, DMF and cam belt problems with my new Ford Kuga TDCi? 18 Feb 2012 (Ask HJ)
  I am soon to take delivery of a Ford Kuga 2.0 TDCi 163 Titanium. Should I be concerned about the 'dual mass flywheel', DPF, and belt cam? I am not too...
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  Petrol or diesel? 24 Nov 2011 (Ask HJ)
  I'm downsizing from an Almera 1.5, and I was wondering what was better to get. I want to spend less than £1000 as it is just for a short period, and...
• Dirty old `soot ball juggling` diesel? - at 6.5yrs 16 Dec 2008 (Forum)
  contrasted with Common rail with DPF. The oil change interval is 6,000 miles and it seems as though its absolutely gagging for a change at half distance. It was using Mobil Super M 15w40 - but this time I used Shell Rimula 15w40. With the viscosity being the same - I was surprised it was quieter.. I had
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  I got a diesel van when I only do short runs and now the DPF keeps clogging. What petrol van should I replace it with? 15 Apr 2020 (Ask HJ)
  I made the mistake of buying a diesel Fiat Doblo van. I only do short runs and the DPF keeps clogging up, even a long run does nothing. What small van...
• Anti diesel hype exaggerated? 8 Jun 2017 (Forum)
  regularly, then the possibility of AdBlue heater, DPF and EGR failures if not straight away, in the future. Those are the reasons I'd be wary of diesel. Not so economical when you have to spend £2,000 - £4,000 replacing emissions equipment after 3 - 4 year" Now I accept that EGR and DPF
• Mazda 6 2007 Diesel - DPF regen failure/air mass sensor link? 4 Nov 2016 (Forum)
  For about six months the car has, I think, had two simultaneous faults. 1) A failed DPF regen about 1000 miles after a filter replacement.  The car had covered about 1000 miles since the replacement and had done about 100 miles of steady motorway driving on the day
• Mazda Mazda 6 (2008 -) - 08 2.0d DPF problems 12 Feb 2013 (Forum)
  I have a new shape Mazda 6 TS2 2.0d, which I bought new in late March 2008. It has done about 10,000 miles in that time, and in mid December the DPF (Diesel Particulate Filter) light came on. I read the handbook which said it needed a long high speed run to clear the filter. In the 3 weeks since
• Ford fiesta 1.5 tdci 2015 - My car now greedy on fuel after forced dpf regen 14 May 2023 (Forum)
  Hi I bought a Ford fiesta 1.5 tdci 2015 reg ex learner car it was great on fuel the miles to empty on the screen would hardly go down and same with the fuel gauge but just seemed a bit slow so I did a Forced dpf regeneration by plugging it into forscan software a lot of smoke and crap came out
• 2.2 tdci mondeo tit x sport 2011 - Ref cars in limp mode 21 Nov 2017 (Forum)
  Evening guys bit of a story to my issue, a few months ago I replaced the battery on my car then a few weeks later engine light came on took it to a mechanic who plugged it in and said dpf fault. So leave the car and had the dpf taken off and given an acid bath so it's clean, everything reset
• Ford Focus 1.6tdci - Ford Focus 1.6tdci oil level increasing 11 Feb 2015 (Forum)
  dropped off also. I've had the dpf replaced 4 months ago. This problem only really started after the dpf was replaced; I read somewhere that the engine could be constantly trying to regerate the dpf? Does the engine oil lubricate the fuel pump? Could there be a leaking seal