How can I cheaply replace or repair the DPF filter in my Mazda 6?

I own a 2008 Mazda 6 2.0-litre diesel with 77,000 miles. A little while ago a DPF warning light came on and the car went into 'limp' mode. I spoke with the Mazda dealer who suggested the DPF filter required...

Will you investigate the reasons for my friend's Jaguar XF's engine developing a dangerous fault?

I am an ex-consumer adviser and am appalled by the way a friend has been treated by Jaguar Motors, and a Jaguar main dealer. Although there has been a short piece in the Evening Standard about his case...

Second hand Audis

I want to buy a five-year-old manual Audi A6 2.0-litre diesel and wish to keep it for five years. I have heard that there are reliability problems with the engine. Is this true and if so would i better...

Buying used diesel estate/hatch that will not depreciate with high personal miles

I am looking for a used small estate car or square ended hatchback which has good mpg which will not depreciate massively. I will drive the car 110 miles a day for my work commute so it need to be economical,...

How can I campaign against the ban of non-EU4 diesel engines in London, which will affect camper van drivers like myself?

On reading your page on 1 May, I was shocked to read the item headed "Mourning campers" because I was totally unaware of the forthcoming ban on non-EU4 diesel engines within the LEZ, which drastically...

Do you recommend the Vauxhall Insignia Estate diesel?

My Jaguar X-Type Estate 2.0D is getting on in years, and I am thinking of changing it for a nearly-new Vauxhall Insignia Estate, probably diesel. Does this car have a good reliability record, and which...

Do you know anything about the Rover Streetwise?

I found the UK too hard on drivers with constantly rising costs, so I have moved to France. Yesterday I was offered a car by a French neighbour. He tells me the cam belt jumped the pulley, and he can't...

Buying a new XC70

I have a 2003 Volvo XC70 diesel auto estate which I have owned from new and which has a little over 60K miles on the clock. It has generally been reliable, but has recently required both front coil springs...

Your move, creep.

I am due to change from a Skoda Octavia 1.9 TDi (diesel) to a Skoda Roomster 1.2 TSi 109PS (petrol). The Octavia will start moving on tickover, which is a great help in multi-storey carparks, traffic...

Need a seven seat 4x4

I'm trying to help my sister-in-law buy a car, but need your help please. She wants an automatic 4WD with seven seats. Of the choices available the majority are diesels with DPFs and as the vehicle will...