Is the Ford Focus 1.6 TDCI diesel a reliable, trouble-free car?

I am considering buying a nearly new Ford Focus 1.6 TDCI. From all reports this would appear to be a very good car, but I am 70 years old and would prefer trouble-free motoring, and I am concerned about...

Why is my Audi A6 TDI's fuel economy so poor?

The fuel economy of my 2007 Audi A6 2.0TDI Avant Multitronic has always been poor from new at 34mpg, rising to 40 in mid 2011 and now having dropped steadily back to 33mpg. Most of my mileage consists...

I want to replace my Focus ST - what will offer better fuel economy and should I buy a diesel?

I currently drive a 2006 Focus ST which I've owned for four years, and apart from a replacement alternator and door strap the only cost has been routine servicing. The car has now covered 53,000 miles....

Does BP Ultimate diesel compare to Shell V-Power?

You confirmed last week that Shell V-Power diesel has advantages over ordinary diesel in terms of particulates and improved performance. I similarly use BP Ultimate diesel in the expectation that it should...

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...

What are the manufacturers doing to improve DPF technology?

Although living in a rural situation most of my journeys are short, which seems to suggest that my diesel engine and exhaust system does not reach the required temperature to enable the DPF to function...

Fumes in cabin and smoke from exhaust

I have a 06 Vauxhall Zafira 1.9 CDTi 150. We have just had the DPF filter replaced and now EGR valve replaced. The car now intermitently pours out smoke from the exhaust (large amounts) sometimes when...

Which petrol automatic SUV should I buy?

I have owned two Audis over the past 13 years, but now I've retired I drive fewer miles and need a higher seating position to ease entry and exit. I naturally favour a Q3 but the alternative choice of...

Are there any diesel cars which do not have DPFs or DMFs fitted?

I have seen mentioned problems with dual mass flywheels and DPF filters. Are there any diesels that do not use DPF filters or have dual mass flywheel issues? I believe Honda has just started fitting DPF...

Does my 2006 Honda Accord have a DPF?

I have a Honda Accord bought new in 2006. It is the 2.2-litre CTDI model. I would be grateful if you could tell me if a diesel particulate filter is fitted?