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• Mazda 6 Diesel Sport 2L 2002 model - ENGINE STALLING THEN KNOCKING SOUND PLEASE HELP 17 Jan 2011 (Forum)
  Hi, I have a 2002 Mazda 6 136bhp deisel sport.  Its done 75000 miles with full service history and a recent cam belt change.  The engine...
• Smokey Smokey Smokey '95 Audi A4 TDi 29 Sep 2003 (Forum)
  Sometimes seems to clear, but gets worse particurly when going up hill when at times the car seems to go down on power for a second or two. The car starts ok, has new injectors fitted (yes tried that first), and new fuel oil and air filters. The car has FSH and the engine is smooth enough. My source of diesel is OK. My mechanic says it MIGHT be the fuel pump, but at £600 to replace I would not want to go down this road until sure.
• Audi A5 S Line - about to buy a 2013 Audi A5 S Line 2 litre Diesel 31 Dec 2018 (Forum)
  the car is up for £23,299 are the A5 car reliable? read somewhere that some Audis have oil pump problems, or maybe i read it wrong lol!? anything to look out for before buying? here is the spec on it, what is Tech Pack (High) ?? Metallic Ice Silver with full Audi service history comes with a long list of extras which include; Black Nappa leather interior heated sports seats 3 zone climate control MMI Navigation Plus with Bluetooth interface Audi park assist auto lights with rain sensor electric heated door mirrors multi-function leather sports steering wheel stop/start function Tech pack (High) piano black trim fascias DAB digital radio sports suspension Bang and Olufsen sound privacy glass adaptive headlights front and rear LED light technology 19" 5 arm Rotor alloy wheels.
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  I only do short drives - can I take precautions to stop DPF issues with my Mazda 6? 9 Jan 2018 (Ask HJ)
  I've been reading some of the problems Mazda 6 owners have with DPFs. My Mazda 6 now has 93,000 miles on the clock, it had 90,000 when I bought it. I mostly...
• Citroen Xantia (1993 - 2000) - 1995 1.9 TD Smoky start 5 Feb 2010 (Forum)
  Starting after that point is also fine. The car has done 190 miles on just under 1/2 a tank which I'm assuming is on the low side. The oil is black and a change is next on my list of chores. It doesn't appear to burn oil though when it starts from cold a great cloud of smoke (I'd say blue smoke) is thrown out until engine settles. Can't see any sign of head gasket failure (no gunk on oil filler cap).
• Renault Master 1998 2.8td - Diesel not starting 15 Jul 2014 (Forum)
  Hi guys. After some help.  My master refuses to start!  Right, the battery is good. Its turning over freely and quickly. There is no...
• Ford Focus 56 plate 1.8 Diesel - Ford Focus 56 plate 1.8 Diesel - Smoke on startup 12 Feb 2012 (Forum)
  Hi I'm wondering if anyone can help diagnose my car issues, info on car from Ford: Focus 04-08, 1.8L Duratorq-DI HPCR (115PS) Lynx, Sea Grey (Metallic)...
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  No power after new turbo fitted 26 Mar 2015 (Ask HJ)
  I have a 2003 Ford Focus 1.8 diesel 115 and a few weeks ago the turbo went on it. I had a recon turbo fitted by my local mechanic, he also cleaned out...
• Citroen C5 - Compensation for faulty car 13 Jun 2011 (Forum)
    On 21 st October I returned it to the showroom because the EML was registering a pollution filter fault and the trip computer was not working properly.   I also complained about the oil being particularly black and questioned if it had been changed before I bought the car.   The light continued to come on periodically but after studying the instruction manual of the car, which stated that the pollution filter cleans itself at regular intervals above a certain speed, my concerns were alleviated that the pollution filter would clean itself.
• Corsa CDTI 2004 - LOTS of Black smoke..... 13 Nov 2011 (Forum)
  Glow plug and times tested EGR was replaced 12 months ago when the light cam on in the car so isn't very old (less than 250 miles on it) i have removed this and inspected it (there was lots of loose carbon inside but apart that looked like new) Recent new head gasket (no oil in water or water in oil) Compression was checked and was 350psi on each pot (cold and dry) Valve timing, I checked this using the cam tool and a 6 mm drill which i put in the hole in the bottom of the gear box and they lined up fine.
• Ford Mondeo - Rant about blatant lies from second hand dealer 10 Sep 2015 (Forum)
  When I actually got some time to check it at home I found the brake fluid below minimum, the coolant below minimum and the washer fluid empty. The brake fluid was the most alarming obviously... Unforunately, being a diesel when I dipped the oil it was already black so I have no way of knowing if it was actually changed. I rang the guy to ask him how he could stamp a service book after leaving the brake fluid so low and whether he actually lifted the bonnet at all and even changed the oil.
• Ford Mondeo MK3 2.0 TDCI 2005 - What is wrong with my car? 6 Mar 2021 (Forum)
  While replacing the EGR I checked the inside of the turbo and found it to not be at fault. There is no oil inside and the turbine blades are undamaged on both exhaust and inlet side. I have very little money and cannot afford the extortionate fees diesel specialists charge and every mechanic i have spoken to has told me to get it towed to a diesel specialist but this would very much exhaust all money i have to fix it before knowing what is even wrong.
• 16 important OIL questions answered! 8 Jan 2013 (Forum)
  The lighter fractions, usually more than 90% of the original crude, are converted into petrol and diesel. Some of the heavier oils, (still dark and smelly!) go through several processes to clean them up and remove wax. Out of about a dozen oily products 4 clear, bright amber oils are commonly used to blend modern engine and gear oils.
• Peugeot 206 hatchback (1998 - 2006) - 03 1.4 HDI poor fuel economy, how to identify prob 12 Dec 2009 (Forum)
  The car doesn't smoke much normally but I revved to full throttle a few days ago while stationary and there was a BIG cloud of black smoke the first time and then smaller ones after that but still very black. This left a visible black mark on the wet floor under my exhaust. It has also developed a bad sounding rattle that comes and goes.
• Ford Focus (1998 - 2004) - 2003 1.8 Zetec Tdci 115 fuel consumption 18 Nov 2010 (Forum)
  I have replaced the air filter with a K&N replacement filter (not induction kit) as the dealer appeared to have failed to replace the filter when they serviced it (black as the ace of spades!), but this has not improved the consumption. I have also once or twice red-lined it to try and clear its throat (not sure whether this still applies as older diesels used to get a bit sooted up if not revved occaisonally).
• Six months with a Skoda 16 Jan 2007 (Forum)
  Overall the car has been a good companion and I would recommend it, although probably as a 2 litre diesel
• 2003 vectra 2.2 dti - limp mode 15 Dec 2013 (Forum)
  hi guys im new here i have a 2003 vectra 2.2 diesel and i buy it with airflow meter problem later i went to the mechanic to scan it and it was the air flow so i got a second hand from a friend car wish one him hv been crased im the back but the engine was working fine ...well my mechanic changed it then i went to test the car and it was the same at 60 miles ph the car light come on (the car with a spanner)  and the car losse the power i back to the mechanic him scan it again and it shows egr valve him cheked the egr and she wasnt moving free and also the car was smoking a lot like a black dry smoke like a powder  so him took it out and give a good clean put bck  i drove it for test again and it was the at 60 miles cut off with the light ..back to him scan again and it shows airflow again but it wasnt smoke anymore  so him tryed a lot of things and nothing solve the problem the car still the same till today and now some times the car dont even want to start the light (with the car with a locker come on  and i call my mechanic him just took off one cable off the batery wait few mins put it back and the car started but somrtimes the car works verry funny stranger jumping like a frog so i went to another mechanic him has a big huge computer  him hook up it on the car and it shows 15 erros codes (i will take with him all the codes and put here i dont hv it now) but i him called some other guy on gthe phone and told him abt the car and the guy says it is something with some memory i dont know where  she was like broken because the other mechanics wasnt delet the faults codes ...but if someone can help me or hv some issue like this let me now  i give a look at the vaccum pipes and i did not find air leak i took the pipe from the turbo out and spin the turbo it was movin fine free but i noticed oil on the pipes from intercooler i heard abt cat or pdf but i tryed to took the exhaust pipe out but i colud not due to no enough tools pls help me 
• A very detailed explanation of how DPFs work 2 Jan 2012 (Forum)
  I found this information on the DPF systems fitted to the Jaguar 2.7 V6 diesels, it's incredibly detailed and covers issues including active & passive regenerations, oil dilution and more.  The general principles apply to any coated DPF system (i.e. ones that don't use a liquid catalyst additive.
• Honda Civic - I know this car is clocked 12 Jan 2014 (Forum)
  What am I supposed to do? http://cgi.ebay.co.uk/2006-HONDA-CIVIC-ES-I-CTDI-BLACK-1-OWNER-65-MPG-155BHP-/140486085074?pt=Automobiles_UK&hash=item20b59f89d2 http://www.autotrader.co.uk/classified/advert/201048374522898/sort/priceasc/usedcars/maximum-age/up_to_4_years_old/fuel-type/diesel/maximum-mileage/up_to_60000_miles/price-to/7000/model/civic/make/honda/page/1/radius/1500/postcode/cw15th?
• Peugeot 307 2.0 - Peugeot 307 66 kw 2.0 HDI engine cutting off 18 May 2016 (Forum)
  I tried to turn it on again, and managed to come home somehow. When I opened the hub, I noted that diesel oil filter housing is broken. A little pipe was broken. There was disel everywhere spillen all over. My mechanic fixed this by using some black plasticine plastic-like thing.  I thought that's it.