fault

My engine on my Skoda Octavia 1.9 diesel sometimes just dies when slowing down (possibly under braking) but then will start again without any problem. What could it be?

My 2000 Honda Civic revs are going up and down between 1,000- and 2,000rpm while stopped. I was away for three months and the car was not used. Any idea what the problem is?

Thanks, Mark

I have a 2010 Toyota Auris. It used two litres of oil between services, Toyota rebuilt the engine and it's still using oil. Is this normal?

I currently own a Ford Focus C-Max - a 2005 model with a TDCi engine. Unfortunately I destroyed the engine when I drove i to water. I got a second hand one from a 2010 C-Max and took it to my mechanic to fit. The mechanic has swapped the new engine into it, but it won't start. He told me he has swapped everything possible from the old engine but it's doing nothing. Any advice would be gratefully received.

Hi, I have a 2007 Nissan Almera 1.5-litre petrol. I just wanted to enquire whether it was unusual for these Almeras to have high engine oil consumption.

Many thanks

My 2004 Mercedes-Benz M 270 CDI is discharging the battery within two hours when parked up. It has a new battery, the sam units, alternator, interior overhead lighting, door sensors and dash clocks were all checked and none of these seem to be the problem. Have you any suggestions to what may be the cause of this?

Could a 2008 Audi A5 2.7 TDI with 150,000km on the clock have any issues that I should be aware of before purchasing?

Does the Volkswagen Tiguan 2.0-litre TDI have troublesome balance shafts in its engine similar to the Audi engine?

Hi, I have a 2007 Skoda Octavia. It has problems starting when cold. It can take up to six tries to get it going. I have changed the air flow meter. Any ideas what else should be checked?

Why does our 2008 MINI Cooper S back-fire and is it normal to do so?