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  Recommend a replacement for our Mazda 2 with a high driving position and easy access? 10 Feb 2011 (Ask HJ)
  We have a 2003 Mazda 2 TS2, owned from new, with under 50,000 miles on the clock. We wish to change this for a similar car, petrol, not diesel. We require...
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  What is your opinion of the Lexus GS 450h hybrid? 15 Dec 2010 (Ask HJ)
  There are some 2-year-old, low mileage, Lexus GS 450h 3.5 SE Saloons available within my max price of £22,500. I don't do big mileage (7,500 miles pa)...
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  How can I get my Peugeot 307 through its MoT? It's failed on emissions. 31 Aug 2010 (Ask HJ)
  My Peugeot 307 1.6 diesel has just failed the MoT on emissions. There are no warnings on the dash and my mechanic is unsure of where to start to fix the...
• New car - old car? £7,000 down the drain? 29 Jan 2010 (Forum)
  Last night the gears became difficult to select and from the feel of it - it`s the linkage - not the box. But it crossed my mind - move it on or not? The problem is that a new DPF diesel can`t do that exceptional stop start work and we have been warned off even contemplating it by a Fiat dealer. That leaves a small petrol motor - but the constant cold running - of typically a few hundred yards - half an hour parked - means almost double the fuel used.
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  The quick answer 25 Jan 2010 (Ask HJ)
  Having been a 'petrolhead' for many years, owning a string of high performance saloons, I am afraid the time has come to change habits. With ever increasing...
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  Can you suggest a family car for London and occasional longer drives? 11 Jun 2020 (Ask HJ)
  We have a maximum budget of £14,000 for a reliable, used SUV or estate with good economy and lots of space. We were originally drawn to the Renault Kadjar...
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  Why does our Mini Clubman Cooper SD's fan continue after the engine is switched off? 2 Apr 2012 (Ask HJ)
  Earlier this year, I replaced my wife's Mini Clubman Cooper S with the new Clubman Cooper SD. I am delighted with car, although it has a rather noisy engine,...
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  Which Skoda Superb Estate is reliable? 21 Feb 2012 (Ask HJ)
  I would love to buy a Superb Estate as a family car to keep it for a long time. Resources are not limitless, so I have to keep overall cost over 10 years...
• Diesel engines - dimensions & tech spec 21 Apr 2006 (Forum)
  Back to square one then. I don't really want an engine much below 65 bhp nor any which are especially harsh for an older diesel. However, newer diesels usually have MAFs and other electronic bits to cause maintenance problems - I think it's better to go for something simpler, which means I'm pretty much restricted to diesel engines pre-1998 or even earlier.
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  What do you think will be the result if the Government is able to make all vehicles electric by 2035? 7 Oct 2019 (Ask HJ)
  What do you think will be the result if the Government is able to make all vehicles by 2035 electric? I understand that the legislation will be all petrol...
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  Unintentional consequences 1 May 2010 (Ask HJ)
  The Toyota "sticking accelerator" incident reminded me of the recent report about a family on a USA freeway who were unable to stop their car. Eventually,...
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  Lumbered 30 Jan 2010 (Ask HJ)
  I am looking to change from having a main vehicle as a 4WD. We live 700ft up in North Wales. Currently we have an Outlander 2.0 diesel. I am considering...
• 2009 Ford Mondeo 1.8 Diesel, 125bhp model - Issue with Power Loss 28 Feb 2019 (Forum)
  The issue started about a month after this got changed. Any and all help is very much appreciated. Last resort is to take it to a diesel specialist. Thanks again! Nathaniel
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  How can I fix my Insignia's DPF problems? 1 Dec 2016 (Ask HJ)
  I have recently bought a 2009 Vauxhall Insignia 2.0 diesel. However, it gave me DPF errors today and started using lots of fuel. I have asked my local...
• Mazda 6 2006 diesel - White smoke problems 26 Jun 2015 (Forum)
  I recently bought a used Mazda 6 2006 diesel car. After a couple of days, I noticed it was producing lots of white smoke especially after the engine is warm. This usually occurs when I stop at traffic lights etc. I noticed that the smoke stops for about 5 days when I drive it on the motorway for about 10 miles.
• Diesel Auto for under £4500, What would you buy? 25 Dec 2013 (Forum)
  My partner only has an automatic license and she wants to upgrade her 2003 Toyota Yaris. The yaris has been a great little car. Its reliable, Great on fuel (40mpg average around town) and nice to drive. Shes just looking for something abit bigger and classy! I want a diesel for economy and we have £4500 max to spend. Now i work for a Mercedes dealership and speaking to the tech guys i should avoid semi autos, even audis great DSG gearbox, and CVT gearboxs.
• Ford C-MAX 1600 TDCi - Ford 1600 TDCi diesel performance issue 6 Apr 2013 (Forum)
  It does this with an overboost, which increases peak torque from 270 Nm to 285 Nm for up to 15 seconds""   It smacks to me of being a fuel supply issue / software issue. Its not a blocked DPF cat or mass airflow meter.   Needless to say the main dealers are not very interested or seemingly knowledgeable.
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  Which 4x4 for towing? 3 Feb 2013 (Ask HJ)
  I have had a Subaru Forester Turbo for the last 12 years - fantastic car. I tow a twin axle trailer and we live on a steep hill down a narrow lane. It's...
• All - DPF regen and low EGTs 2 Jan 2012 (Forum)
  With low EGTs, the ECU has to spray disel into the exhaust gas stream to raise the EGTs to a sufficiently hightemperature to burn off the soot. Clearly this is waste of fuel since diesel burned in the exhaust does not contribute to useful work. But the more worrying problem is unburned diesel running into the sump and contaminating the oil. There is a very simple way to raise EGTs-raise the intake air temperature.
• Honda Civic or Skoda Fabia - Fabia Estate ('08ish) or '05 Civic? can't decide 5 Oct 2010 (Forum)
  I'm looking at an older 2005, 1.6 SE Honda Civic hatchback or a newer Skoda Fabia Estate deisel, maybe the 1.4 Greenline. However I'm not totally convinced that diesels are that cheap to run in the real world. People seem to get a lot less that the quoted MPG figures in the real world, also diesels need more care  and the modern ones seem to be pretty complex machines.