fault

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?

The key for my Saab 9-3 has stop working and the car seems to be dead now with nothing coming up on the dash when the key goes in. Also, as I live in Donegal and there are no Saab dealers here where do I go from here?

I just had an AA test for a 2006 BMW X5 with a view to purchase. The oral report from the AA tester noted oil around the transmission. I have yet to receive the written report but what could the oil be a sign of?