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  Yeti 'Engine Fault' warning 16 Oct 2012 (Ask HJ)
  We love our two year old Yeti 4x4 diesel (or at least we did). A couple of weeks ago after a couple of hours at a steady 70mph on the A1 the glow plug...
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  What is AdBlue and what does it do? 18 Nov 2021 (Ask HJ)
  I currently have a 2014 Mercedes-Benz C-Class diesel and I am waiting delivery of a new B-Class 180d. I prefer Mercedes diesels to Renault petrol engines. Because...
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  Post-coronavirus, I'm working from home more. Should I swap my diesel to avoid DPF issues? 8 Jul 2020 (Ask HJ)
  At the start of the year, I bought a 2018 diesel Peugeot 3008 to cater for a daily commute of 40 miles each way and regular long distance family trips...
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  Should I buy a petrol or a diesel? 11 Mar 2019 (Ask HJ)
  I am soon to order a new car and am debating whether to have diesel or petrol. My driving pattern is changing as I am spending time between Italy and...
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  Could you recommend a medium-size van for a delivery driver? 17 Apr 2018 (Ask HJ)
  I'm a delivery drive. Could you recommend a medium-size van with an automatic gearbox, please?
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  Why is my Volkswagen Touran using so much oil? 23 Nov 2016 (Ask HJ)
  I have a 2013 Volkswagen Touran 1.6 diesel with 13,000 miles on the clock. Recently the car has been giving me some problems. A while ago it was emitting...
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  Should a DPF fault on my Lexus 220D have been noticed during a service? 9 Nov 2013 (Ask HJ)
  My 2009 Lexus 220D went into limp mode 100 miles from home when I was on my way to France on holiday. It was the DPF filter. This was after a major service...
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  Is my diesel Jaguar XF suitable for my mileage and driving style? 26 Jan 2013 (Ask HJ)
  I am retired and drive less than 6000 miles a year in a 2.7-litre diesel Jaguar XF. You always advise that petrol is better than diesel for low mileage,...
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  DPF and Turbo failure on my Focus 23 Aug 2012 (Ask HJ)
  The engine failure light came on in my 2008 Focus 1.6 TDCI and i discovered it was the additive for the DPF filter, which needed to be topped up. But...
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  When is a DPF fluid change due? 10 Aug 2012 (Ask HJ)
  My Ford dealer tells me that I should have completely changed the DPF oil at the 37,500 service. My village garage - who did the service - says that AutoData...
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  Flat spot at around 2000rpm in X-Trail 27 Jun 2012 (Ask HJ)
  Recently bought X-trail and it has a certain degree of what I can only describe as hesitancy or very slight judder/cough and splutter, always round about...
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  Is it true that diesel vehicles don't respond well to repeated short runs from cold? 27 Oct 2010 (Ask HJ)
  I have advised my wife that for only about 5,000 miles per year she needs to stick to a petrol automatic SUV because it's cheaper and diesel engines do...
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  Should I be concerned about the DPF if I buy a Volkswagen Golf or Polo TDI? 14 Oct 2010 (Ask HJ)
  I am about to choose between a Golf TDI 90 PS and a Polo 75 PS TDI, but am concerned about reports concerning DPF problems with the Polo in particular....
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  How should I drive my Citroen C5 diesel in order to avoid potential DPF problems? 5 Sep 2010 (Ask HJ)
  A couple of months ago, I bought a secondhand 2007 Citroen C5 2.0 HDi auto. This is obviously a rep's car, given the 72,000 miles on the clock. Again,...
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  Filter tip - DPF regeneration 15 Jan 2010 (Ask HJ)
  I've run a BMW E60 525SE petrol auto from new. It's 6 years old and I intend to change it for a new F10 5-Series. There are compelling paper reasons for...
• Volvo D4 - dpf, dmf scaremongering? 12 Sep 2017 (Forum)
    Fed up of trying to find a decent family petrol car on a 12k budget. Petrol used prices increasing, poor fuel consumption etc. Love the V60,...
• Ford Focus 1.6 TDCi 110 DPF - 2009 Ford Focus Brake Torque Settings 15 Feb 2013 (Forum)
  Hi all... I've been looking high and low trying to find the Brake Caliper bolt torque settings, I just wondered if anyone here might be able to help please?...
• Engine fouls own nest - `food` goes into wrong end 29 Oct 2008 (Forum)
  During re-generation,with particulate filter equipped diesels, do injectors really blast fuel into the cylinders on the exhaust stroke, wetting bores and contaminating oil? Or is there a separate injector just upstream of the DPF? Is there a better engineering solution to cleaning a particulate
• Mazda Mazda 6 (2002 - 2007) - 2006 2.0 Loss of power,dpf light on, tcs light on 18 Aug 2008 (Forum)
  Mazda Diesel...34,500miles....taken to dealer who said the oil & filter needed changing, service due in about another 1100 miles.....their diagnostic machine...
• Kia Sportage 1.7 diesel. - More frequent DPF regens. 30 Apr 2024 (Forum)
  For the past 18 months i've been monitoring the DPF in my Kia Sportage 2017, 1.7 diesel with an OBD plug in and Car Scanner pro on i phone. The car has done 27k miles. Virtually every regen it's performed has been after 160 - 170 miles when the soot level reaches 15 to 16 grams. I give it a 10