I bought a 2006 Peugeot 207 1.6 110 for £2600 from a dealer a few months ago, but have had nothing but trouble with it. At first it was just a dashboard warning of "depollution system faulty", which the dealer said was due to a build-up of emissions in the DPF. They advised me to just add some additive and give it a good blast down the motorway, but this didn’t solve the problem.

Then, the other night, the car suffered a complete breakdown, with no power. I’ve been told it’s a problem with the heating coil, camshaft and turbo. What should I do?