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  Is the DPF on my Jaguar clogged? 6 Sep 2012 (Ask HJ)
  My Jaguar regularly shows a red dashboard warning saying the diesel particulate filter is full. I'm told I should, at some point since the previous time...
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  Which small MPV offers lots of space, good visibility and comfort? 28 Apr 2012 (Ask HJ)
  We have had very satisfactory service from our Fiat Multipla JTD ELX which is now 10 years old, has covered over 140,000 miles and, although running well,...
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  Which engine is best in the Ford C-MAX? 3 Apr 2012 (Ask HJ)
  I have to update our Mondeo estate (2002 petrol) and am considering a C-Max, perhaps 1 or 2 yrs old. I am attracted to the 1.6 diesel because of low VED,...
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  Which economical car for 15,000 miles per year mixed driving? 3 Mar 2012 (Ask HJ)
  I live in the countryside and drive 250 miles a week to the office and back, mostly on B-roads, and also use the car for the usual things, including travelling...
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  Second clutch replacement 10k after the first? 8 Feb 2012 (Ask HJ)
  We have a 2009 Peugeot 207 1.4hdi (no DMF or DPF system on this one, thankfully!). Bought it at a year old with two year manufacturer warranty remaining....
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  Can you recommend a petrol-engined 4x4 SUV? 12 Jan 2012 (Ask HJ)
  On your website it says that the new model Santa Fe can come with a petrol engine. However there is no mention of one on the Hyundai website? I fancy having...
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  Replacement for a Focus? 21 Oct 2011 (Ask HJ)
  We will be replacing our 2001 Focus Estate Ghia 1.8 (85,000 miles, average condition) soon. We’ve been quite happy with the Focus, so will by another...
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  Do you know of any problems with the Alfa Romeo 159? 15 Sep 2010 (Ask HJ)
  I have decided to buy a used Alfa Romeo 159 2.4 JTDm. I have read your review of the 159 and you list a number of faults that affect the 1.9 JTDm, but...
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  No particulate place to go 22 May 2010 (Ask HJ)
  I've read with some dismay of the shocking stories of Mazda 2.0 diesels spewing fuel into the engine lubricant with understandable and catastrophic results....
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  Pensioners off 6 Feb 2010 (Ask HJ)
  We are two pensioners who have not bought a car for 15 years and are considering buying a new Audi A6 2.7 diesel or a used Jaguar XF 2.7 diesel to provide...
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  Do you have any advice on dealing with Audi after the emissions fix caused increased fuel consumption in my A6? 13 Mar 2017 (Ask HJ)
  I've just taken my Audi A6 in to have the emissions fix because Audi insisted that the performance, fuel consumption and CO2 emission will not be adversely...
• BMW 3 Series - BMW e92 320i vs 320d buying advice 5 Jun 2025 (Forum)
  The diesel has less mileage about 110k to the petrols 120k. The diesel is a much better spec so I’m tempted but I’ve heard horror stories about dpf and how short journeys can kill it, and occasionally I will be doing 50+ miles but day to day it’s going to be 25 min commute. Both are auto. Same price is the diesel a terrible idea. Or am I just scaring myself.
• Renault megan dci diesel - Stop light on dashboard 12 Aug 2023 (Forum)
  Hi can anyone help please  I  had a service on my car and after  a few  weeks  I put some engine  cleaner  to help ,but after a few days  the spanner light along with  the stop light saying call garage  urgently,  called the R A C out and he said  dpf needed cleaning  the done a regen  on the car,but the spanner  light and stop light are still  on however  the car drives  fine without  any issues  been down  the motorway  at speeds  of 68 ,70, 75  from Birmingham to Rugby  and back again  with no problem  touch wood,  any advice  how to take the lights off or is there anything  else causing  this problem?
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  Is an EV a viable choice for driving through France? 29 Apr 2019 (Ask HJ)
  I'm thinking of buying an electric car but I drive a lot in France. What is the situation with charging points and fees please?
• VW Golf 1.6td se DSG 2013 - Cold Start issues 21 Mar 2018 (Forum)
   otherwise, car runs fine, 55mpg on a run, no misfires or hesitations of any sort.  Does the cold start activate the DPF? Car runs on a diet of ASDA, Sainsbury's, BP, Shell and ESSO. OIl is changed every 7-8k, using VW Quantum: 5w30 Long Life. Thanks for any replies.
• 1.6 TDI VW - OVERHEATING HELP!!!!!!!! 14 Mar 2018 (Forum)
  Used to overheat when doing a regen going up hill or on inclines, now its happening driving up hill or inclines at any time    Timing belt and water pump changed Genuine Thermostat (yes its in correct also) Genuine Coolant temp sensor  Genuine Coolant flange  Genuine Secondary water pump near sump area changed DPF deleted and gutted out (told it could be blocked) EGR valve deleted from map and blanked off (still same symptoms after) New coolant cap Heater inside car is perfect Fans are working (as they are usually on...)
• Toughest car ever made 4 Oct 2016 (Forum)
  With all the talk of costly failures on modern turbo diesel cars. DPF, DMF & premature turbo failure, I'm hankering back to a simpler time. The days when a simple well maintained Diesel engine could cover massive mileages with little grief for owners. I've been in a Nissan Bluebird 2.0dLX with over 1m miles on its original engine, a Mk II Granada 2.5DL with more than 750k, Isuzu engined Cavaliers with 500k upwards, a Peugeot E7 HDI with 850k and I've sold a Toyota Carina 2.0 XLd with 452k which was running and driving fine.
• MK1 Focus 2.0 Petrol versus MK5 Golf 2.0 diesel 6 Jan 2016 (Forum)
  I am looking to buy a MK5 Golf 2.0 GT (pre DPF) to replace my Focus 2.0 Zetec petrol.  I do 12k milage a year and want the holy grail of more torque, power and economy. I am amazed at the torque difference on paper between the two (131 v 236 lb-ft), but the Golf is alot heavier (16%).
• Toyota Yaris - Horn not sounding 16 Oct 2015 (Forum)
  Then two weeks later the car was booked in to have some work carried out for TSBs, I believe these relates to the DPF oil fire and air bag recall.    My question is, is  there anyway when the mechanic removed the steering wheels cover to access the air bag to inspect as part of TSB would have compromised the function of the horn.
• Toyota Yaris - Yaris 1.4 d4d for a 60 mile commute 11 Aug 2015 (Forum)
  Should i consider a petrol version instead? I've never owned a diesel, but from what i've read DPF can be a problem, is that the case with the yaris? Many thanks for your help     p.s. other cars i've considered Fiesta Zetec 1.6 tdci year 02-08 - i've read its gearing isn't suited to motorway mpg 107/aygo/c1 - I've read the small engines aren't suitable for motorway mileage, other than the C1 1.4 diesel.