Ask Honest John

Most recently answered diesel particulate filter questions
I would like to buy a nearly new Kia Sorrento or Hyundai Santa Fe automatic - I do about 11,000 miles a year, with some regular 150 mile runs. However I am aware of the DPF, DMF and EGR problems you have...
I'm looking at buying a Citroen C3 1.4 HDi 70 Airdream+ (August 2009 model). I have heard some real scare stories about DPFs costing an arm and a leg to replace. Do you think the car will have a DPF?...
Are there any other vehicles similar to my Caddy,(smaller considered) that may fit the bill.
I have read your articles for many years and have taken particular note of your advice regarding using diesel engined cars for regular short runs - as im afraid I do. I do take my car, a Jaguar 2.2 automatic,...
I run a Vauxhall Corsa diesel 1.3 Club, 58 plate, 43,000 miles on the clock, regularly serviced. It is a driving school car. Recently, in the middle of the day, the engine suddenly faded and cut out...
Picked up a 320d SE 2007 (07) yesterday, anyway today it's started causing me problems, obviously I've phoned up the garage, they've given me a car whilst they get it in the garage on Monday. I'm just...
Is DPF flashing light failed for MoT?
I am looking to but a used diesel 4x4 for towing that does not have a DPF. The car would need to have a kerbweight of at least 1800kg for safe towing of my caravan. My budget is around £10,000, what...
Due to my high mileage covering 27,000 miles in 18 months in my petrol Ford Focus, I'm now looking to buy a diesel to replace it. However, I've previously had a Mondeo diesel (52-plate) which suffered...
I own a 2007 VW Passat 2.0 SEL TDI 170 DSG Estate which has covered about 75,000 miles. Until June it was averaging just over 42mpg on a combined cycle over 4500 miles, and on a run I could routinely get...
 

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