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• Diesel Tuning Chip / Unit 26 Jul 2007 (Forum)
  Anyone use anyone of these above before? These are sold on eBay ranging from £100 to £250. Does it work? Will it improve the fuel economy and provide extra...
• vauxhall diesel 2.0 2.2 omega/vectra 7 Jun 2007 (Forum)
  Hi Has anyone fitted bulb type fuel primer pump, as fitted to citreon etc. I am told that omega/vectra need dealer only pump to bleed pump after fiter...
• Polo AEF Diesel 20 Jan 2005 (Forum)
  Can anyone advise me where the fuel cut off valve is on this model? Is it below the plastic cover, with 3 wires protruding (imobiliser I think), on the...
• laguna 2.2 diesel tickover adjustment 22 Apr 2004 (Forum)
  Can someone inform me how to adjust the injection (fuel flow) to my Laguna. I feel someone adjusted it (I have higher revs now)to improve its performance....
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  What's a good diesel to buy on a £3000 budget? 29 Jan 2019 (Ask HJ)
  I'd like to buy a used diesel family car within the £3000 limit. I need it for commuting so needs to be good on fuel? Any ideas and what mileage is best...
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  Is buying a diesel car a bad idea even if I do high mileage? 5 Mar 2017 (Ask HJ)
  I'm looking at getting a used car, no older than 2015, to use for about 25,000 miles of mostly motorway driving per year. Due to my mileage, I was looking...
• BMW 320d vs VW Polo 1.9 - Fuel efficiency BMW 320d or VW Polo 1.9 25 Mar 2011 (Forum)
  So at the end of the week I will be driving London to Tuscany! I have a choice of of 2003 BMW 320d estate or a 2004 VW Polo 1.9 diesel. Any idea on which one will be the most fuel efficient? I will be in no rush, so 65mph will be fine. All motorway but will be quite heavily loaded with holiday gear. Any advice???
• Honda CR-V II (2002 - 2006) - 05 2.2i-CDTi Fuel Consumption 13 Nov 2008 (Forum)
  Got my judder sorted out ... EGR valve software update though the car still feels dead in low revs ... Problem is now the fuel consumption has really went through the floor ... 30 mpg at best and thats taking it easy ... Any ideas or does anyone have a diesel CRV and know there true MPG
• Premium fuels 12 Oct 2004 (Forum)
  This is in my 60k Passat 130, I was wondering if VAG PD engines respond particularly well to premium fuels or if this an across the board benefit?
• Diesel engine life 7 Aug 2006 (Forum)
  Hi Folks I remember many years back a friend telling me diesel engines ware normally good for double the amount of millage than a petrol engine - engines running at lower revs and diesel having a lubricant in the fuel were i seem to recall the main resons- . At that time before ecus he said around 100k-120 - pertrols and 200k for diesels.
• Ford Mondeo III (2000 - 2007) - fuel system sensors 1 Oct 2007 (Forum)
  They said they could not check anything as the fault had been cleared & the car was now running perfectly. The Ford service people suggested the fuel level had been low & that sensors had detected air in the system which cut out the fuel pump to protect it - either that or dirty diesel (The tank was actually one third full on refuelling.) Although the car now runs OK, I read an answer in your column (15th Sept) about a BWW diesel with intermittent fuel pump problems (stalling) which you suggested could have been due to bad earths on the fuel tank lifter pump or its relay.
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  I put unleaded into my diesel BMW by mistake - should I have it flushed? 11 Mar 2012 (Ask HJ)
  I drive a BMW 320d. As an ex-Shell employee I always look out for V-Power Diesel as I like its performance and cleanliness. For several months Shell have...
• Renault Clio - Changing the Fuel Filter 5 Apr 2024 (Forum)
  Most places are looking at £150 to change the filter, But looking on Youtube , Its quite a easy job but they don't really tell you how to bleed the Diesel if it airlocks. I have a 2017 1.5 Diesel engine. I would have thought that there would be more up to date Videos on Youtube, But its very limited with old Videos. I may bring the next service forward and have a Major service done and have a gap between the service and MOT.
• Honda CRV - Your thoughts on a test drive issue. 3 Mar 2020 (Forum)
  At the weekend I test drove a honda CRV diesel on a 16 plate low mileage, it was low on fuel with the light on with 2 mile on the trip computer so we went to get diesel but before we could put fuel in the limp home mode symbol came on but I didn't know what it was so when I drive away I quickly found out and had no power so we went back the the carstore had a chat and walked away but I have now had a phone call saying on there diagnostic equipment it said low fuel pressure and that they have put a new battery on aswell ,when I asked why the new battery the sales guy wasn't to sure but he will see if he can get a report explaining things a little better.
• Vauxhall Corsa D (2006 - ) - 2007 1.7CDTI unrealistic fuel economy. 14 Jun 2012 (Forum)
  Just bought an 07 plate corsa 1.7cdti and so far been unimpressed with fuel economy. Used to have old style 1.2 petrol corsa which gave a range of approx. 400 miles to a tank. New corsa, diesel!, is averaging 440 tops, way short of the 582 quoted in the press figures etc.
• Mercedes C220CDI - Diesel Knock 16 Jul 2004 (Forum)
  Over the past few days my car has developed a knocking noise. This comes on mainly in first and second gear when accelerating away but not until the engine...
• Dirt & water in diesel 11 Mar 2001 (Forum)
  A friend has just purchased a 6 month old tdi (115 pd ) passat. It broke down and the VW garage found water & dirt in the filter. It needed a new fuel...
• Diesel drivers can rejoice first time since 2001 3 Sep 2015 (Forum)
  Gasoline cost GBP1.17 ($1.82) a liter in the U.K. on Aug. 21 while diesel was GBP1.14, according to European Commission data. While most of European countries have a lower tax on diesel, the U.K. has the same duty for both fuels meaning that diesel has typically been more expensive than gasoline, or petrol as it is more commonly known, according to Paul Whatters, a spokesman for the Automobile Association, the U.K.
• Renault Espace 2.2 dci 2001 - Espace 2.2 dci lack of power uphil 24 Dec 2012 (Forum)
  Going downhill, no problem. Car is otherwise great and gradually returns to full power. I have had all  fuel pumps, and various sensors replaced over the last 5 years and EGR about 4k mls ago. I did clean EGR myself very recently and changed fuel filter plus have tried 'expensive' diesel and fuel additive.
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  How can I flush the fuel from my Morgan 4/4 after storing it for nine months? 27 Aug 2011 (Ask HJ)
  After fitting a new battery, my little Morgan 4/4 started ok after hibernation. But it's not running sweetly and I put it down to tired petrol; 3/4 full...