Renault Clio emitting black smoke - what's the problem?

I have a 2009 Renault Clio 1.5 diesel and when I start it emits lots of black smoke. The problem has got so bad now that thick black smoke fills the road and loss of power. Any ideas?

Which smaller wheels can I get for a Renault Scenic?

My 2013 Renault scenic with 17-inch wheels and higher tyre pressures than usual has a harder ride. Which other Renault wheels with smaller rims would give a softer ride?

Which car for lowest maintenance

I need something my wife can drive (so not a long car) that is safe and also spacious enough to accommodate two children. So a large cabin, but don't need a big boot. It must be a car that won't break...

Buying a used car - Renault or SEAT?

I do 10,000 miles per annum, mostly short journeys mixed with some long motorway runs. I am considering a used Renault Megane or SEAT Leon, spending up to £12,000. Do you advise petrol or diesel for this...

Will the Renault Captur get an off-road system

In your review of the Renault Captur, you mentioned there is 'No form of 'Grip Control' initially'. Are you hinting that this might be introduced at some later stage?

Buying a Nissan Juke - which model is best?

We own a Renault Scenic and want to replace it with a Nissan Juke. Can you tell us what model is best?

Emission control treatment - is it worth paying for?

My new Renault Scenic 1.6 dCi is going in for its first service and the garage has offered an Emission Control treatment for £24.95. Apparently this cleans the oil, improves emissions and increases mpg....

Is it safe to buy a new car from a broker?

My son wants to buy a new Renault Clio and we have been offered what seems to be a very good deal by an online dealer. None of the local dealers in our area can match the price and we’re very tempted....

Buying a fun car - what's best?

I am currently deciding on what to purchase for my next new car. Ideally I want something exciting which will also prove reliable for the next five years. I'm currently looking at: Volkswagen Scirocco...

Which cool MPV for a new mother?

What's the coolest mini MPV for a new mother, in your opinion?