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  Should I be cooling the turbo on our Mondeo and should I use a premium fuel? 1 Jun 2013 (Ask HJ)
  We have a 2011 Ford Mondeo Estate Titanium X 2.0 litre petrol model. We cannot find details of the optimum revs for each gear. Is this model turbo boosted...
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  Did diesel freeze cause my Volvo V50 to lose power? 5 Dec 2012 (Ask HJ)
  Setting off after parking my Volvo V50 1.6D DRIVe overnight in temperatures down to -16 degrees C, the car kangaroo jumped for a couple of minutes with...
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  Should journalists quote 'real' emissions figures for new cars, or manufacturer's figures? 28 Jul 2012 (Ask HJ)
  I have mixed feelings over Roger Stansfield's article on quoting ‘real’ emissions for new cars, rather than the artificial constructs presently published...
• Renault Espace (2002 - ) - 05 2.2 DCi Auto poor fuel economy 9 May 2012 (Forum)
  Hello - I just wandered if anyone in this forum can pass an informed eye on the fuel economy I am getting ( or not getting ) from my Sept 2005 Diesel Espace 2.2DCi (non-FAP apparently). It is a 5 speed Auto with the "tiptronic" option - i.e pushing the stick to the left turns it into a clutchless manual.
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  Problems with a Zafira 4 Apr 2012 (Ask HJ)
  We had problems with car running on a short distance with flooding and drys up and restarts. The AA have been out on occasion, and after first diagnosis...
• BMW 5-Series E60 (2003 - 2009) - 2006 2.0 Non existent Diagnostics 22 Mar 2012 (Forum)
  Looked in the iDrive faults area and it had no reported faults and the car was back to normal - weird I thought, a minute ago the fuel pump was allegedly broken, the Cruise control had a fault and the start assist program had been started. Now the car is back to normal with no record of a problem?? The following morning I attempted to start the car again and was back to square one, fuel pump, cruise control faults, start assist message and the car on the ramp symbol on the dash board.
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  Why is my Citroen Xsara's engine cutting out? 16 Jun 2011 (Ask HJ)
  A couple of weeks ago, as my wife drove to work in our 2000 Citroen Xsara 1.9 diesel estate, the car simply stopped and turned itself off with the engine...
• any - who adds 2SO to their diesel fuel 1 Jun 2011 (Forum)
  I wonder if there are any motorists out there who add 2SO to their diesel fuel . Dont use red 2SO otherwise you have a job explaining why you have what appears as red diesel in the tank to a fuel dipper ! Extract  " due to the pollution control measures of the EC diesel-oil is nearly sulphur free and contains up to 5% of bio-diesel.
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  We are looking for a reliable 5-door car with good build quality - should we buy petrol or diesel? 21 May 2011 (Ask HJ)
  We have recently retired and are planning to spend around £20,000 on a new or nearly new car. Being conscious of escalating fuel costs we were planning...
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  Euro what? 27 Apr 2011 (Ask HJ)
  I have bought a Renault Megane dci 130 registered end December 2010. How can I tell if it is manufactured as Euro 4 or 5, please?
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  Guiles per gallon 22 Apr 2011 (Ask HJ)
  The article comparing diesel and petrol Fabias was very interesting but was probably not how most people drive most of the time. I am trying to choose...
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  Not for public consumption 24 Jul 2010 (Ask HJ)
  I bought a Hyundai i10 on 1st September last year. The reason I bought it was the praise attributed by the motoring press, particularly yourself. On the...
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  My Ford Mondeo's had a new turbo but still smokes and surges - what's wrong with it? 16 Jul 2010 (Ask HJ)
  I have recently had the turbo and actuator replaced on my 54-reg Ford Mondeo TDCi, although I now know that it was only a loose connection within the actuator...
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  Does the Audi Allroad 12.5 TDI engine have a history of injection pump failures? 7 Jul 2010 (Ask HJ)
  I have had diesel cars for over 20 years and never had a pump failure until recently. In Jan 2009 I bought a 2005 Audi Allroad 2.5 TDI. In Dec 2009, one...
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  Diesel or petrol? 21 Jan 2010 (Ask HJ)
  I would appreciate some advice regarding the annual running costs of diesel versus petrol. We have been running two diesel cars. My Audi A4 is 08 registered...
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  No hesitation 4 Apr 2009 (Ask HJ)
  I own a 2002 Skoda Elegance 1.8 (petrol) turbo 4x4 Estate with which I am very satisfied. Recently, an irregular and highly irritating fault has manifested...
• Vauxhall Vectra 1.7TD - cold starting problems 2 Jan 2002 (Forum)
  Not that the 1.7TD has much scope for abuse, but that's a different thread altogether :) The last time I came to change the fuel filter (about 109,000 miles), when I put the new one on, the car became progressively more difficult to start, with lots of smoke when it did start. I put this down to air ingress into the fuel system due to me disturbing something, and went down to Vauxhall parts to ask them about it.
• Audi a1 sport back 2011 - Cylinder 4 misfire 1.2 tfsi 24 Sep 2025 (Forum)
  The 2 codes coming up are p030400(cylinder 4 misfire) & P130A00(cylinder disabled due to electrical fault) the Audi has been in 2 separate garages who cannot find the fault. Parts that have been replaced so far are 4 spark plugs, cabling, coil pack, fuel filter, crank sensor, fuel rail sensor. Has anybody had the same issue? Everything has been checked and double checked....would it be best to change the injector on cylinder 4?
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  Do DPF cleaner additives work? 31 Dec 2024 (Ask HJ)
  Do DPF fuel additives work? If so which are the best?
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  Are there any recalls for the Toyota Avensis? 3 Aug 2023 (Ask HJ)
  Are their any recalls on a 2010 Toyota Avensis T27 1.8 petrol?