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Thinking of buying a secondhand diesel - when did DPFs and DMFs appear?
I am driving a 2004 Ford C-Max 1.6 diesel which is giving excellent service and fuel economy. I will keep it for a year or two longer, but I wonder about its replacement. If buying secondhand cars, it appears that diesel is the best bet, provided I avoid DPFs and DMFs. If buying new, petrol seems a better bet. At what date did DPF & DMF come onto the road. How did this affect different manufacturers?
Asked on 21 April 2012 by AH, Formby
Answered by
Honest John
DMFs started being fitted in about year 2000 and were pretty much universal on diesel engined manual cars and DSGs from about 2004. DPFs were first fitted by Citroen to the C5 and were slowly adopted by other manufacturers. Most engines needed them to meet EU4, though PSA/Ford 1.6 90PS diesels Honda 2.2iCTDIs and the Hyundai/KIA 1.6 chain cam diesel didn't. To meet EU5 almost every diesel has to have one, though for a few months the KIA Rio 1.1CRDI managed EU5 without.
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