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  Is my Land Rover Freelander likely to develop DPF and DMF problems? 28 Jan 2012 (Ask HJ)
  I was interested in your warning about impending failures of diesel particulate filters and dual mass flywheels on diesel engined cars. My Freelander 2...
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  Nearly new and cheap to run car 29 Oct 2011 (Ask HJ)
  Myself and my partner currently both own Skoda Fabias. Mine is a 56 1.4 Petrol 16v and hers is a 57 1.3 Diesel (both high spec) but neither really do a...
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  Will a KIA Venga or cee'd diesel cope with an annual mileage of 11,000 with two long journeys per month? 4 Sep 2011 (Ask HJ)
  Please advise on the benefits, if any, of buying a KIA Venga or cee’d diesel based on an annual mileage of 10,000-11,000 with at least two trips per month...
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  You might find this extract from an interview with a US fleet manager interesting with regards to DPF faults. 23 Feb 2011 (Ask HJ)
  I often read comments in your Saturday column referring to problems with particulate filters on diesel-engined road vehicles. In view of your obvious knowledge...
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  Reliability of mid-size diesel 4X4s 2 Feb 2011 (Ask HJ)
  Probably against your general advice, I am looking to buy a (new) mid size manual diesel 4X4. Could you comment on expected reliability of Honda CR-V 2.2D,...
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  Does my Peugeot 407 really need diesel fuel additive? 9 Sep 2010 (Ask HJ)
  In my 2006 Peugeot 407 SW SE, diesel fuel additive should be checked at 70,000 miles and running out can lead to massive bills. Mine required three litres...
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  Good Manners 3 Jul 2010 (Ask HJ)
  I have driven a Hyundai Matrix 1.8 for the last seven years, from new, and never had any trouble with it. I am 73 years old and don't do many miles. I...
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  Someday smut 25 Jan 2010 (Ask HJ)
  I thought you might be interested to hear about my DPF experience. I drive a 2010 VW Golf 2.0 TDI GT, which I love. The mileage to date is less than 3,000....
• Mazda 6 - 2006 Mazda 6 Diesel low performance, no CEL 3 Jul 2021 (Forum)
  , the issue was vacuum hose, which was broken and after fixing it, car was like new, it was running fast and smooth, no problems at all. It had DPF light on while in limp mode but after fixing all the things, it got erased and never saw it again. now, after about 1-2 months I lost power again, I don't get any
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  What should I pay attention to if I buy a high mileage car? 21 May 2020 (Ask HJ)
  I'm thinking of buying a high mileage Volvo XC90. Any tips of what to look out for?
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  Why won't my Hyundai Santa Fe let me upshift if it thinks we're going too slow? 10 Dec 2017 (Ask HJ)
  My Hyundai Santa Fe will not let me change up manually if it thinks we are going to slow. My other Tiptronic auto would let me go into any gear, even...
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  Buying a used Citroen C4 Grand Picasso - petrol or diesel? 23 Sep 2016 (Ask HJ)
  I need an MPV for multiple children carrying to replace my beloved but ageing Citroen C8. However, our journeys are mainly short - often much less than...
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  Buying a used Jaguar XF 10 Dec 2015 (Ask HJ)
  I'm planning to buy an approved used Jaguar XF (2013 reg).I prefer the looks and power of the V6 diesel S(275PS).Do you thing it will suffer more problems...
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  Buying a 4x4 for the school run - diesel or petrol? 8 Sep 2013 (Ask HJ)
  We are looking to buy a 4x4 for our two mile school run. We are keen on a BMW X3, but have heard that short trips are not good for diesels due to the DPF...
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  Petrol or diesel? 2 Apr 2011 (Ask HJ)
  An answer you posted recently pointed out multiple drawbacks to diesel ownership from the fourth year onwards, on a car under a 3 year lease. If I buy...
• Any - How long does an exhaust pipe last? 7 Oct 2023 (Forum)
  for 18 years. Have had both petrol and diesel cars (pre DPF, with a nice lining of soot in the exhaust and with DPFs) and in perhaps 350,000 miles over that 30 odd years, aside from one exhaust for the Figaro, I’ve never replaced any exhaust components, even on cars that I’ve run for longer than 10
• Honest John's Motoring Agony Column 09-02-2019 Part 1 12 Feb 2019 (Forum)
  Cleggy - a case to answer. Having some trouble understanding this. The car was sold with a 3mth warranty which suggests it was over 3yrs old at time of purchase. Indeed, the questioner says it was purchased with an MOT. Isn't emissions part of the MOT test? If the DPF had been cut in half
• ford focus diesel tdci - focus help 25 Nov 2017 (Forum)
  Where to start, 3 weeks ago my 1.6 diesel focus TDCI went in to limp mode... took it to the garage and codes read DPF filter, i had i chemically flushed and all was well. yesterday went into limp mode again displaying Engine systems fault, so back to the garage. the mechanic who i
• VW Amarok 2012 - Warer pump failed Limp mode 18 Jul 2017 (Forum)
  Hi there. I was driving my Amarok yesterday with when it went into limo mode and a few warning lights flashed up. This being the engine, coil and DPF lights. The "change air filter" warning also came up on the display.  None of these problems have come up since I've had
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  What is the smell around the exhaust of my car after a long run? 9 May 2017 (Ask HJ)
  My Audi Q5 has a smell like hot tarmac around the rear and exhaust area after a good run. It doesn't smell like oil and the oil level is steady after 500...