Ask Honest John

Most recently answered dpf questions
My Golf TDI GT Sport 170 was recalled and repaired due to fault with the Piezo injector. Three new injectors were fitted. I have had problems ever since and the dpf light is on every day - I take it...
I am looking to buy a new car but am totally confused at the moment. I want a car with performance, good handling and comfort. My wife and I also need something with all-round ability, shopping journeys...
After selling my BMW 5-Series I'm thinking of returning to a Golf-sized car and was thinking about a 1.6TDI Match Mk6, however I'm wary about buying a diesel. We only did about 8000 miles per year in the...
The DPF light suprisingly came on after a motorway run between Liverpool and Northumberland. I tried the usual of driving as the manual stated, but an extra light came on saying take to garage! I couldn't...
I have been having problems with the DPF on a Renault Laguna diesel. I have had it regenerated twice and now someone has suggested having it taken out. I have looked on the internet and found numerous...
I have just read your comments on diesel particulate filters and am a little concerned as I have a 2010 Jaguar 3.0d XF Premium Lux which I bought new, and I was never advised that the DPF could cause problems....
I have not once had a diesel engine related problem despite having diesels since 1985. In an attempt to preserve this record, the replacement for my 2007 Citroen Berlingo must not have either a DPF or...
I have not once had a diesel engine-related problem despite being a diesel driver since 1985. In an attempt to preserve this record, I want to replace my 2007 Berlingo with a diesel which doesn't have...
We would like to buy either a Ford Focus hatchback or estate or a 2008 Ford C-Max from British Car Auctions, where we have purchased several cars in the past. The car will serve as an all purpose workhorse...
My present car is a 2007 Audi A3 SE 2.0 litre TDI automatic that I have had from new. I do limited mileage (total 25,000 currently) and have much enjoyed the solidity and the luxury (metallic paint, leather...