Most recently answered technical issues questions

Is it okay to change one piston? My Vauxhall Astra diesel has done 36,000 miles and there is no damage to the bore, only the piston and the head.

My 2008 Ford Fiesta diesel broke down and a local garage did a diagnostic test and said injector number three needed replacing. I paid just over £300 for this work and the car drove out the garage exactly...

My 2007 Vauxhall Zafira's last main service was back in 2011. It has only done 10,000 miles since then, is it time for another big service or just an interim one?

I own a Peugeot 308 SW, which has covered 57,000 miles. Last week the odometer reading suddenly jumped to 94,000 miles. Is this a known fault on this model and what is the best way to correct it? ...

I'm looking to buy a brand new BMW 120d. Can you tell me if the timing chain is still a problem on this engine, or have they solved the problem?

The first service on my Renault Scenic is due after 20,000 miles. A Renault mechanic suggested its a good idea to change the oil before that milestone - my present mileage is about 11,000. What do you...

I drive a 2006 Citroen Xsara Picasso 1.6 diesel. The other I started it and it cut out. It now won't start. Can you help?

I discovered a big pool of water in the driver side rear footwell a couple of weeks ago. Lifted carpet to get as much water out as possible and to try and dry it out - it's getting there, but periodically...

I'm in the process of trying to find a 3 Series BMW convertible. My budget will stretch to around 2007/2008 car from a trader. I want a petrol engine but would like to know any reliability issues or what...

I'm about to buy a 2011 Volkswagen Passat 1.4 TSI DSG estate with 19,000 miles on the clock. Its just had its first service at a dealer at three years old. Should I worry that it hasn't had a service for...