Ask Honest John

Most recently answered diesel particulate filter questions
I want to buy a Volkswagen Golf Estate SE TDI(105) on a 58 plate with 26,000 miles. Are there any issues with it and is its DPF problem?
I have a Peugeot 307 SW 2006 which is a great car but I have the usual problems with the DPF. I can live with them... I have been told that a lot of new cars are fitted with 3 cylinder engines and that...
In November I purchased a SEAT Ibiza from the Car Shop. Around a month later the DPF warning light came on. I consulted the handbook and took on the advice to drive at constant high speed for 15 minutes....
The yellow 'engine block' light has illuminated on my Volkswagen Touareg diesel during a 300 mile trip to Cornwall. It went out a day or so later only to come on again on the way home at the end of the...
I am considering replacing my 140,000 mile Vauxhall Omega V6 with a Lexus IS. Can you tell me when Lexus first fitted a DPF to the IS 220d?
I see that several companies are offering the removal of the diesel particulate filter system for the Volkswagen Passat, followed by a remap as a practical solution to DPF problems. Would you recommend...
I'm just about to purchase a 2007 Nissan X Trail 2.0 Dci, can you tell me if this model is fitted with a dreaded DPF? I believe that the 173bhp versions have one, but not sure about the 150bhp models...
I am thinking about buying a used Jaguar S Type 2.7 Diesel with manaul gearbox if I can find a good one. Is this car a sensible used buy, and can you confirm whether any of the early models were in "pre-Euro...
I have a second hand 307 Peugeot which I bought last year June. Last week I let the fuel level run very low and due to this the "Antipollution fault" light came on; and caused the car to jerk. The warning...
My 2010 Mazda 3, 2.2 diesel 185 bhp Sport can return 60 mpg on an extra-urban round trip of say 10 miles or so but should i make a few stops on the way, the fuel consumption goes up like there's a tap...