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  Why is my car slow when starting from cold? 22 Dec 2016 (Ask HJ)
  My Mercedes-Benz ML270 CDI (2004) is a bit sluggish when starting up from cold in the morning - it's only just started happening. I have to press harder...
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  £1500 budget for reliable 50 mile commuter car 31 Aug 2016 (Ask HJ)
  I have a £1500 budget for 50 mile daily commute and occasional motorway work, hatchback. I have looked at the 1.4 and 1.8 TDCI Fiesta and Focus. I have...
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  Buying a used seven seater - what would you recommend? 5 Nov 2013 (Ask HJ)
  I'm looking to buy a used seven seater: it must be reliable as well as economical to run (fuel, insurance, road tax). What would you recommend?
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  Would you recommend a Nissan Qashqai or Hyundai ix35? 28 Sep 2013 (Ask HJ)
  I am undecided between buying a new automatic Nissan Qashqai or a Hyundai ix35 and would welcome your advice, drawing, perhaps, on knowledge you have of...
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  Engine fault light on Discovery 3 - what's the fault? 8 Sep 2013 (Ask HJ)
  The engine system fault light keeps flashing on my 2009 Land Rover Discovery 3. I have spent hundreds of pounds at the main dealer (fuel filter suspected...
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  BMW 1 series start stop is playing up. What could be causing it? 28 Dec 2012 (Ask HJ)
  Start stop has stopped working at all over past few weeks. Conditions for operating have been met e.g outside temp and battery fully charged manually....
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  Shell V Power fuel with Ford Powershift 18 Nov 2012 (Ask HJ)
  I read your explanation on how to benefit from Shell V-Power yesterday. Following your recommendation I've been using Shell diesel in my Ford Kuga 163ps...
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  Replacement for SEAT Altea Freetrack 26 Sep 2012 (Ask HJ)
  Can you suggest a replacement for a SEAT Altea Freetrack 2.0TDI? We cover approx 15k miles on mixed road types per annum. Would prefer a nearly new vehicle...
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  Does my Nissan X-Trail have a DPF and dual mass flywheel, and is it likely to give problems? 25 Feb 2012 (Ask HJ)
  I have an 2005 2.2 DCI Nissan X-Trail, 50,000 miles. Does it have the potentially ruinous components of a diesel particulate filter and a dual mass flywheel?...
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  Poor economy on a Santa Fe 19 Feb 2012 (Ask HJ)
  I own a Santa Fe auto diesel 2011. Despite almost constant use of the ECO button the fuel consumption continues to rise. Originally it achieved 39mpg...
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  What's the usual mph/rpm ratio? 8 Feb 2012 (Ask HJ)
  My friends Volkswagen Tiguan 2.0 Auto Diesel does 60mph at 2000 rpm in top gear on a flat road. I think this is about 500rpm too much. There is no...
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  Is my 1998 BMW 840Ci Sport likely to turn into a money pit? 16 Jun 2010 (Ask HJ)
  Could you advise if my 1998 BMW 840Ci Sport with 109,000 miles (with a replacement engine of approx 50,000 to 60,000 miles) - is worth keeping? Or should...
• SEAT Toledo III (2005 - ) - 07 2.0D Economy is poor. 2 Sep 2008 (Forum)
  He has checked the fuel computer and is convinced its accurate, i assume by brimming and comparing. Seat have had the car back and can find nothing wrong, but they do say that a customer who bought the sister vehicle to my friends is complaining of his fuel consumption too.
• Rover 200 (1995 - 1999) - 1997 220 Diesel ECU problems 9 Nov 2007 (Forum)
  Hi, I have a problem with my P reg Rover 220 sdi. The EML is on but it only comes on on the second start of the day,and the engine revs up and then...
• Vectra DTi Starting .. the last straw 23 Mar 2004 (Forum)
  I have a 'W' reg Vectra 2.0 DTi which has had the common problem of not starting if left for a while. Accepted wisdom on this problem is that it is caused by air leaks in the fuel system. This is generally cured by replacing the bleed off pipes, changing the injector seals, replacing the filter housing and fitting a non-return valve in the fuel pipe. So we tried all that. No joy.
• Citroen Xantia (1993 - 2000) - 00 2.0 HDi Fuel Problems 6 Apr 2009 (Forum)
  Xantia HDi 90bhp RHY engine, new Sept 2000, 108k, several previous owners, I've put about 1,200 miles on it. It cut out. Taken to my usual Citroen agent. Verdict HP Fuel Pump, estimated repair cost more than value of car. Got a pump (same part no) from ebay. Mate of son (time served, and experienced diesel mechanic) fitted this, but it won't start. His kit gets code P0230 (he doesn't have specific Citroen software).
• Toyota Previa (1990 - 2000) - 1996 2.2 (Emina 3C-TE) - Won't start when hot. 5 Jun 2008 (Forum)
  My father priced one in New Zealand, where he lives and he was told that it will cost 11thousand dollars for a new electronic fuel pump. Yes 11thousand! Apparently it will have to come from Japan or something. I am wondering though, if it was the fuel pump wouldnt it be playing up all the time? not just when it was hot? Any other suggestions?
• Smokey Ford Escort 1.8TD 9 Nov 2004 (Forum)
  Is there a fuel pump issue here? maybe injectors have faulty pressure springs inside them? or maybe the fuel return system is not working correctly? Shouldnt this unwanted/unused fuel be returned somehow instead of being chucked out the exhaust?
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  Mercedes-Benz C220 CDI (W204) blowing black smoke 24 May 2014 (Ask HJ)
  I own a 2009 Mercedes-Benz C220 CDI (W204) with an automatic gearbox. I have recently had a problem where the car is blowing out black smoke and the car...
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  Replacing VW Polo Bluemotion - what petrol hatch would you recommend? 14 Jan 2016 (Ask HJ)
  I want to replace my Volkswagen Polo Bluemotion with a petrol, low-emissions, five-door hatchback or city car that has some energy to tackle local hilly...