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  Is there a defeat device in my Porsche Macan as with the Volkswagen EA189 engine? 17 May 2017 (Ask HJ)
  I have a 2014 Porsche Macan 3.0-litre diesel, bought new. It recorded 42mpg or better on a long run and 39mpg average on short urban runs. Porsche wrote...
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  Why has the oil in my diesel car turned jet black? 5 May 2017 (Ask HJ)
  I have a Subaru Outback 2.0d Premium which I have owned from new. It has done 11000 miles (mostly high speed long distance and motorway) and I have noticed...
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  The emissions fix caused the EGR on my Audi A3 to fail - what are my rights? 3 Apr 2017 (Ask HJ)
  200 miles after the update, my 2010 Audi A3 Cabriolet 1.6 has broken down and needs a new EGR valve. These are on back order and, after two weeks, I have...
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  Why has my Audi A6 2.0d suddenly lost power? 22 Mar 2017 (Ask HJ)
  I recently bought a 2011 Audi A6 2.0d that has done 55,000 miles. I was driving on the motorway at about 70mph when the car lurched and the engine management...
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  Are other drivers experiencing worse fuel economy after the emissions fix? 3 Mar 2017 (Ask HJ)
  I had the emissions fix on my 2013 Volkswagen Passat 180PS three weeks ago. My trip is now showing a consistent 7 per cent worse fuel consumption and the...
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  Should I trade my 2006 Jaguar S Type in for the newer model? 29 Dec 2016 (Ask HJ)
  I bought a 2006 Jaguar S Type 2.7-litre diesel back in April while I was between jobs to see me through. Having now returned to work I am wondering whether...
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  Need a reliable used car for under £8k 15 Oct 2016 (Ask HJ)
  I need a reliable used car that will comfortably cover 15,000 miles a year. My budget is £7000 and I've been told to buy a diesel. I quite like the Toyota...
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  Low oil light on, but oil level is fine? 5 Oct 2016 (Ask HJ)
  My 2012 Ford Focus 1.6 diesel has run approx 6000 miles since its engine oil change 10 months ago. The car is running very well and has good performance....
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  Mazda 6 vs Volvo S60 20 Jul 2016 (Ask HJ)
  We are considering buying a new car and have narrowed our choices to a diesel Mazda 6 and a S60 Volvo diesel. However we are concerned about reports that...
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  What's wrong with my Hyundai ix35? 5 Mar 2015 (Ask HJ)
  I have a 2012 Hyundai ix35 1.7 diesel, which is under a finance agreement. The vehicle frequently goes into limp mode, exclusively under acceleration such...
• Fiat Qubo 1.3 Multijet 95 Trekking - Engine management warning light 24 Jan 2015 (Forum)
  of problems with the dpf in the Fiat 500 version and I have found myself driving up and down the A12 so that similar problems don't occur with the Qubo. I even bought a moped to use for short journeys. Finally, I became paranoid about the vehicle, waiting for the engine management light to come on or the dpf
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  Need a 4x4 for £7k - what do you recommend? 3 Oct 2014 (Ask HJ)
  Having just moved to countryside, we need to buy a 4x4 to cope with country lanes and our steep drive. The car will do long journeys (+1hr) at least fortnightly,...
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  Kia Cee'd misfire 9 Sep 2014 (Ask HJ)
  I have a 2012 Kia Cee’d 1.6 diesel which seems to "misfire" when accelerating between 1500 and 2000rpm. I use it as a driving school car and having it...
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  Which SUV should I buy? 30 Jul 2014 (Ask HJ)
  I'm looking to buy a four-wheel drive SUV to replace my 2005 Honda Accord Tourer. I will drive around 15,000 miles a year and want a diesel. The Mazda...
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  Which Fiat 500 should I buy? 18 Feb 2014 (Ask HJ)
  I’m a 25 year old female about to buy a Fiat 500 for work. My commute is about 50 miles each way on the M56, so fairly flat ground. Originally I was considering...
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  Buying a van - new or used? 22 Jan 2014 (Ask HJ)
  My son frequently carries equipment in rectangular flight cases of various sizes and currently has a 2004 double axle LDV van, but this, though reliable...
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  Buying a large estate - petrol or diesel? 13 Jan 2014 (Ask HJ)
  We wish to buy a car and have found that the Volvo V70 D5 suits us well for holidays with dogs, kayaks, luggage etc on long trips to Scotland with no lack...
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  Should Audi cover the cost of my A4's faulty ECU? 30 Nov 2013 (Ask HJ)
  One injector of my Audi A4 2.0TDI failed. Audi replaced all four injectors free of charge. However, after they were replaced, the car would not start and...
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  Should I keep my boring, reliable Volkswagen Lupo or buy something more fun? 16 Nov 2013 (Ask HJ)
  I own a Volkswagen Lupo 2002 1.7 SDI, which is now coming up to 100,000 miles. The diesel engine has been incredibly reliable and I've driven since 34,000...
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  What should my daughter replace her Mazda Premacy with? 16 Nov 2013 (Ask HJ)
  My daughter and son-in-law intend changing their 10-year-old, 59,000 mile Mazda Premacy 1.8 petrol GXi. It has given excellent service, is in first class...